UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act File Number 811-5522 RIVERSOURCE SECTOR SERIES, INC. (Exact name of registrant as specified in charter) 50606 Ameriprise Financial Center, Minneapolis, Minnesota 55474 (Address of principal executive offices) (Zip code) Scott R. Plummer - 5228 Ameriprise Financial Center, Minneapolis, MN 55474 (Name and address of agent for service) Registrant's telephone number, including area code: (612) 671-1947 Date of fiscal year end: 6/30 Date of reporting period: 12/31 Semiannual Report (RIVERSOURCE INVESTMENTS LOGO) RIVERSOURCE DIVIDEND OPPORTUNITY FUND SEMIANNUAL REPORT FOR THE PERIOD ENDED DECEMBER 31, 2008 RIVERSOURCE DIVIDEND OPPORTUNITY FUND SEEKS TO PROVIDE SHAREHOLDERS WITH A HIGH LEVEL OF CURRENT INCOME. SECONDARY OBJECTIVE IS GROWTH OF INCOME AND CAPITAL. (SINGLE STRATEGY FUNDS ICON) TABLE OF CONTENTS -------------------------------------------------------------- <Table> Your Fund at a Glance.............. 2 Manager Commentary................. 5 Fund Expenses Example.............. 11 Portfolio of Investments........... 14 Statement of Assets and Liabilities...................... 21 Statement of Operations............ 22 Statements of Changes in Net Assets........................... 24 Financial Highlights............... 26 Notes to Financial Statements...... 35 Proxy Voting....................... 49 </Table> (DALBAR LOGO) The RiverSource mutual fund shareholder reports have been awarded the Communications Seal from Dalbar Inc., an independent financial services research firm. The Seal recognizes communications demonstrating a level of excellence in the industry. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 1 YOUR FUND AT A GLANCE ---------------------------------------------------------- (UNAUDITED) FUND SUMMARY - -------------------------------------------------------------------------------- > RiverSource Dividend Opportunity Fund (the Fund) Class A shares declined 25.13% (excluding sales charge) for the six months ended Dec. 31, 2008. > The Fund outperformed its benchmark, the Russell 1000(R) Value Index, which decreased 26.93% during the same six-month period. > The Fund also outperformed its peer group, as represented by the Lipper Equity Income Funds Index, which fell 26.40% during the same period. ANNUALIZED TOTAL RETURNS (for period ended Dec. 31, 2008) - -------------------------------------------------------------------------------- <Table> <Caption> 6 months* 1 year 3 years 5 years 10 years - ------------------------------------------------------------------------ RiverSource Dividend Opportunity Fund Class A (excluding sales charge) -25.13% -35.92% -5.94% +0.33% -0.92% - ------------------------------------------------------------------------ Russell 1000 Value Index (unmanaged)(1) -26.93% -36.85% -8.32% -0.79% +1.36% - ------------------------------------------------------------------------ Lipper Equity Income Funds Index(2) -26.40% -35.40% -7.65% -1.19% +0.50% - ------------------------------------------------------------------------ </Table> * Not annualized. The performance information shown represents past performance and is not a guarantee of future results. The investment return and principal value of your investment will fluctuate so that your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance information shown. You may obtain performance information current to the most recent month-end by contacting your financial institution or visiting riversource.com/funds. The 5.75% sales charge applicable to Class A shares of the Fund is not reflected in the table above. If reflected, returns would be lower than those shown. The performance of other classes may vary from that shown because of differences in expenses. See the Average Annual Total Returns table for performance of other share classes of the Fund. The indices do not reflect the effects of sales charges, expenses (excluding Lipper) and taxes. It is not possible to invest directly in an index. (1) The Russell 1000 Value Index, an unmanaged index, measures the performance of those stocks in the Russell 1000 Index with lower price-to-book ratios and lower forecasted growth values. The index reflects reinvestment of all distributions and changes in market prices. (2) The Lipper Equity Income Funds Index includes the 30 largest equity income funds tracked by Lipper Inc. The index's returns include net reinvested dividends. The Fund's performance is currently measured against this index for purposes of determining the performance incentive adjustment. - -------------------------------------------------------------------------------- 2 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- STYLE MATRIX - -------------------------------------------------------------------------------- <Table> <Caption> STYLE VALUE BLEND GROWTH X LARGE MEDIUM SIZE SMALL </Table> Shading within the style matrix indicates areas in which the Fund is designed to generally invest. The style matrix can be a valuable tool for constructing and monitoring your portfolio. It provides a frame of reference for distinguishing the types of stocks or bonds owned by a mutual fund, and may serve as a guideline for helping you build a portfolio. Investment products, including shares of mutual funds, are not federally or FDIC-insured, are not deposits or obligations of, or guaranteed by any financial institution, and involve investment risks including possible loss of principal and fluctuation in value. ANNUAL OPERATING EXPENSE RATIO (as of the current prospectus) - -------------------------------------------------------------------------------- <Table> <Caption> Total fund Net fund expenses expenses(a) - ----------------------------------------- Class A 1.11% 1.11% - ----------------------------------------- Class B 1.87% 1.87% - ----------------------------------------- Class C 1.87% 1.87% - ----------------------------------------- Class I 0.72% 0.72% - ----------------------------------------- Class R2(b) 1.52% 1.52% - ----------------------------------------- Class R3(b) 1.27% 1.27% - ----------------------------------------- Class R4 1.02% 1.01% - ----------------------------------------- Class R5(b) 0.77% 0.77% - ----------------------------------------- Class W 1.16% 1.16% - ----------------------------------------- </Table> (a) The Investment Manager and its affiliates have contractually agreed to waive certain fees and to absorb certain expenses until June 30, 2009, unless sooner terminated at the discretion of the Fund's Board. Any amounts waived will not be reimbursed by the Fund. Under this agreement, net fund expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment (that increased the management fee by 0.05% for the year ended June 30, 2008), will not exceed 1.06 for Class A, 1.82% for Class B, 1.82% for Class C, 0.70% for Class I, 1.50% for Class R2, 1.25% for Class R3, 0.96% for Class R4, 0.75% for Class R5 and 1.15% for Class W. (b) Inception date for Class R2, Class R3 and Class R5 was Aug. 1, 2008. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 3 YOUR FUND AT A GLANCE (continued) ---------------------------------------------- AVERAGE ANNUAL TOTAL RETURNS - -------------------------------------------------------------------------------- <Table> <Caption> AT DEC. 31, 2008 SINCE Without sales charge 6 MONTHS* 1 YEAR 3 YEARS 5 YEARS 10 YEARS INCEPTION** Class A (inception 8/1/88) -25.13% -35.92% -5.94% +0.33% -0.92% N/A - ------------------------------------------------------------------------------------ Class B (inception 3/20/95) -25.46% -36.47% -6.64% -0.43% -1.68% N/A - ------------------------------------------------------------------------------------ Class C (inception 6/26/00) -25.38% -36.42% -6.65% -0.42% N/A -2.93% - ------------------------------------------------------------------------------------ Class I (inception 3/4/04) -24.97% -35.69% -5.56% N/A N/A +0.31% - ------------------------------------------------------------------------------------ Class R2 (inception 8/01/08) N/A N/A N/A N/A N/A -24.56%* - ------------------------------------------------------------------------------------ Class R3 (inception 8/01/08) N/A N/A N/A N/A N/A -24.48%* - ------------------------------------------------------------------------------------ Class R4 (inception 3/20/95) -25.05% -35.72% -5.64% +0.61% -0.71% N/A - ------------------------------------------------------------------------------------ Class R5 (inception 8/01/08) N/A N/A N/A N/A N/A -24.39%* - ------------------------------------------------------------------------------------ Class W (inception 12/1/06) -25.13% -35.99% N/A N/A N/A -16.20% - ------------------------------------------------------------------------------------ With sales charge Class A (inception 8/1/88) -29.43% -39.60% -7.80% -0.86% -1.43% N/A - ------------------------------------------------------------------------------------ Class B (inception 3/20/95) -29.12% -39.55% -7.81% -0.78% -1.68% N/A - ------------------------------------------------------------------------------------ Class C (inception 6/26/00) -26.11% -37.04% -6.65% -0.42% N/A -2.93% - ------------------------------------------------------------------------------------ </Table> Class A share performance reflects the maximum sales charge of 5.75%. Class B share performance reflects a contingent deferred sales charge (CDSC) applied as follows: first year 5%; second and third years 4%; fourth year 3%; fifth year 2%; sixth year 1%; no sales charge thereafter. Class C shares may be subject to a 1% CDSC if shares are sold within one year after purchase. Sales charges do not apply to Class I, Class R2, Class R3, Class R4, Class R5 and Class W shares. Class I, Class R2, Class R3, Class R4 and Class R5 are available to institutional investors only. Class W shares are offered through qualifying discretionary accounts. *Not annualized. **For classes with less than 10 years performance. The performance information shown represents past performance and is not a guarantee of future results. The investment return and principal value of your investment will fluctuate so that your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance information shown. You may obtain performance information current to the most recent month-end by contacting your financial institution or visiting riversource.com/funds. - -------------------------------------------------------------------------------- 4 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT MANAGER COMMENTARY ------------------------------------------------------------- (UNAUDITED) Dear Shareholders: RiverSource Dividend Opportunity Fund (the Fund) Class A shares declined 25.13% (excluding sales charge) for the six months ended Dec. 31, 2008. The Fund outperformed the Russell 1000(R) Value Index (Russell Index), which decreased 26.93%. The Fund also outperformed its peer group, as represented by the Lipper Equity Income Funds Index, which fell 26.40% during the same period. SIGNIFICANT PERFORMANCE FACTORS The U.S. equity markets were characterized by negativity through most of the six months ended Dec. 31, 2008. The period from September through November, in particular, was one of the most challenging ever for investors. Volatility soared, as the equity markets reacted to a litany of bad economic news. Investor concerns were fostered by rising unemployment and a still-fragile housing market as well as by continued financial disruptions. Underlying this uncertainty were signs that U.S. economic growth was weakening and moving into a recession, as evidenced by waning consumer demand and a dimming export sector, which, until recently, had been a rare bright spot in the U.S. economic SECTOR DIVERSIFICATION(1) (at Dec. 31, 2008; % of portfolio assets) - --------------------------------------------------------------------- <Table> Consumer Discretionary 4.7% - ------------------------------------------------ Consumer Staples 8.4% - ------------------------------------------------ Energy 15.5% - ------------------------------------------------ Financials 14.3% - ------------------------------------------------ Health Care 11.1% - ------------------------------------------------ Industrials 5.9% - ------------------------------------------------ Information Technology 3.6% - ------------------------------------------------ Materials 8.0% - ------------------------------------------------ Telecommunication Services 15.3% - ------------------------------------------------ Utilities 10.0% - ------------------------------------------------ Other(2) 3.2% - ------------------------------------------------ </Table> (1) Sectors can be comprised of several industries. Please refer to the section entitled "Portfolio of Investments" for a complete listing. No single industry exceeds 25% of portfolio assets. (2) Cash & Cash Equivalents. The sectors identified above are based on the Global Industry Classification Standard (GICS), which was developed by and is the exclusive property of Morgan Stanley Capital International Inc. and Standard & Poor's, a division of The McGraw-Hill Companies, Inc. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 5 MANAGER COMMENTARY (continued) ------------------------------------------------- picture. Global financial institutions cut back lending as other major financial institutions either went bankrupt, were forced to merge or were taken over by the government. Together, these factors heightened investor risk aversion and fear. As a result, investors sold off all types of equity assets in a flight to the relative safety of U.S. Treasuries. All sectors within the Russell Index declined, led by energy (more specifically the energy sector's oil services companies), which fell along with the dramatic decrease in crude oil prices. Despite economic weakness and market turmoil, the Fund continued to increase its dividend payout at a rate greater than inflation during the semiannual period. Also, the Fund maintained a net dividend yield at a level in excess of 150% of the broader market yield (as represented by the S&P 500 Index) during the semiannual period. The net dividend yield is the dividend yield after expenses. Having significant exposure to the utilities sector contributed the most to the Fund's performance during the period. The utilities sector outperformed the Russell Index and provided an attractive dividend yield. Within utilities, positions in telecommunications companies QWEST COMMUNICATIONS INTL. and VERIZON COMMUNICATIONS particularly TOP TEN HOLDINGS (at Dec. 31, 2008; % of portfolio assets) - --------------------------------------------------------------------- <Table> Chevron 4.5% - ------------------------------------------------ AT&T 3.9% - ------------------------------------------------ BP ADR 3.6% - ------------------------------------------------ Verizon Communications 3.5% - ------------------------------------------------ Pfizer 3.4% - ------------------------------------------------ Lorillard 3.2% - ------------------------------------------------ Bristol-Myers Squibb 3.1% - ------------------------------------------------ Bank of America 2.3% - ------------------------------------------------ US Bancorp 2.2% - ------------------------------------------------ JPMorgan Chase & Co 2.1% - ------------------------------------------------ </Table> For further detail about these holdings, please refer to the section entitled "Portfolio of Investments." Fund holdings are as of the date given, are subject to change at any time, and are not recommendations to buy or sell any security. Current and future portfolio holdings are subject to risk. - -------------------------------------------------------------------------------- 6 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- helped. Similarly, having only a modest allocation to the comparatively weaker performing capital goods industry group boosted the Fund's results. Stock selection within capital goods also helped, as the Fund maintained a sizable position in CATERPILLAR, which was a standout performer, and only a small position in GENERAL ELECTRIC, which declined substantially. Stock selection was also effective in the health care sector, where pharmaceuticals companies BRISTOL-MYERS SQUIBB and PFIZER performed especially well. Maintaining only a small exposure to the weakly-performing information technology sector helped as did strong stock selection in the sector. Positions in a basket of U.S. airline companies further buoyed the Fund's results during the period. Detracting from performance most was having a sizable allocation to materials, the worst performing sector in the Russell Index during the period. A position in diversified metals producer RIO TINTO particularly hurt, as its share price declined on decreased commodity prices. Having only a modest exposure to integrated oils also hurt, as this industry slightly outpaced the Russell Index during the period. More notably, not having a material position in strongly- performing EXXON MOBIL detracted from results as did having more sizable positions in weaker competitors CHEVRON and BP. CHANGES TO THE FUND'S PORTFOLIO We reduced the Fund's exposure to the consumer staples sector, particularly tobacco companies, including LORILLARD, REYNOLDS, AMERICAN TOBACCO and PHILIP MORRIS INTL. These tobacco companies had performed well for an extended period of time, so we took profits on concerns that federal regulation of the tobacco industry might become increasingly restrictive with the incoming administration. We also reduced the Fund's positions in COCA-COLA and KRAFT FOODS. We reduced the Fund's allocation to the materials sector, primarily by trimming its position in COMPASS MINERALS INTL. In the consumer discretionary sector, we eliminated the Fund's holding in FORD MOTOR COMPANY. We redeployed the proceeds from these sales primarily in the health care, financials, utilities and information technology sectors. In health care, we increased the Fund's position in BRISTOL-MYERS SQUIBB. In financials, we focused on bank-related names, increasing the Fund's holdings in BANK OF AMERICA, COMERICA and JPMORGAN CHASE. In utilities, we established - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 7 MANAGER COMMENTARY (continued) ------------------------------------------------- a position in PEPCO HOLDINGS and added to positions in QWEST COMMUNICATIONS INTL. and VERIZON COMMUNICATIONS. In information technology, we increased the Fund's holdings in MICROCHIP TECHNOLOGY and NOKIA. Other than these, we made no meaningful changes to the Fund's portfolio during the period, maintaining a low 14% turnover rate. OUR FUTURE STRATEGY We expect economic activity, as measured by gross domestic product (GDP), to continue to contract through the first half of 2009. However, we believe there is a potential for a rally given attractive valuations, a large federal government stimulus package, and potential stabilization in the credit markets. Serving as a potential catalyst for this rally may be equity market volatility levels; while still elevated, they are widely anticipated to be lower than those of 2008. Another catalyst may be the great attention we expect to see focused on the new U.S. administration's economic policies, which appear to be biased toward aggressive intervention in and stimulus for the financial markets. Further, interest rates are low and may stay that way for a while, and the major drop in oil prices has helped put some cash into the pockets of consumers. It is important to note that historically, equities generally rally one to two quarters before an economic recovery takes hold. At the end of 2008, several factors led us to believe that equity investments were particularly attractive. Risk aversion among equity investors was at a generational high, with valuation spreads between higher-risk assets and comparatively risk-free assets reaching levels not seen since the 1970s. Consistent with this were equity market price/earnings ratios at their lowest levels in nearly 20 years. These factors, together with quick, unprecedented government intervention into the equity markets, produced what we believe to be a compelling opportunity to add cyclicality to the Fund's portfolio as we enter 2009. During the coming months, we expect to de-emphasize defensive sectors in favor of industrials and other sectors that traditionally benefit from both rising markets and economic recoveries. As always, we take larger positions in sectors, industries or individual stocks when we believe we have identified factors that have the potential to move the share values higher while other investors have either missed, ignored or strongly disagree with these factors. We intend to focus on - -------------------------------------------------------------------------------- 8 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- larger-cap stocks and to continue to add stocks offering greater dividend-yield potential. Of course, we intend to continue carefully monitoring economic data and shifts in market conditions as we seek stock-specific and industry-level opportunities to add value for the Fund's shareholders. We remain optimistic about dividend-paying stocks. At the end of the period, the average yield of U.S. equities was above the yield of 10-year Treasury bonds for the first time since 1958. While this points to the attractiveness of equities from a yield perspective, we believe a goal of maintaining a net dividend yield that exceeds the S&P 500 Index yield makes the Fund much more attractive than 10-year Treasuries for risk-tolerant investors who are seeking yield. Further, we intend to continue to seek opportunities for yield from investments in companies across a wide variety of sectors in an effort to mitigate the risk of dividend cuts seen recently among several companies within the financials sector. Indeed, we continue to seek a diversified mix of dividend-paying stocks, with a focus on large-cap, value-oriented companies. Despite economic weakness and market turmoil, the Fund continued to increase its dividend payout at a rate greater than inflation during the semiannual period. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 9 MANAGER COMMENTARY (continued) ------------------------------------------------- <Table> (PHOTO - WARREN SPITZ) (PHOTO - LATON SPAHR) Warren Spitz Laton Spahr, CFA(R) Senior Portfolio Manager Portfolio Manager (PHOTO - STEVE SCHROLL) (PHOTO - PAUL STOCKING) Steve Schroll Paul Stocking Portfolio Manager Portfolio Manager </Table> Any specific securities mentioned are for illustrative purposes only and are not a complete list of securities that have increased or decreased in value. The views expressed in this statement reflect those of the portfolio manager(s) only through the end of the period of the report as stated on the cover and do not necessarily represent the views of RiverSource Investments, LLC (RiverSource) or any subadviser to the Fund or any other person in the RiverSource or subadviser organizations. Any such views are subject to change at any time based upon market or other conditions and RiverSource disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for a RiverSource fund are based on numerous factors, may not be relied on as an indication of trading intent on behalf of any RiverSource fund. - -------------------------------------------------------------------------------- 10 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT FUND EXPENSES EXAMPLE ---------------------------------------------------------- (UNAUDITED) As a shareholder of the Fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on purchase payments; and (2) ongoing costs, which may include management fees; distribution and service (12b-1) fees; and other Fund fees and expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. In addition to the ongoing expenses which the Fund bears directly, the Fund's shareholders indirectly bear the expenses of the funds in which it invests (also referred to as "acquired funds"), including affiliated and non-affiliated pooled investment vehicles (including mutual funds and exchange traded funds). The Fund's indirect expense from investing in the acquired funds is based on the Fund's pro rata portion of the cumulative expenses charged by the acquired funds using the expense ratio of each of the acquired funds as of the acquired fund's most recent shareholder report. The example is based on an investment of $1,000 invested at the beginning of the period and held for the six months ended Dec. 31, 2008. ACTUAL EXPENSES The first line of the table provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading titled "Expenses paid during the period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line of the table provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads). Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 11 FUND EXPENSES EXAMPLE (continued) ---------------------------------------------- <Table> <Caption> BEGINNING ENDING EXPENSES ACCOUNT VALUE ACCOUNT VALUE PAID DURING ANNUALIZED JULY 1, 2008(A) DEC. 31, 2008 THE PERIOD(B) EXPENSE RATIO - -------------------------------------------------------------------------------------------- Class A - -------------------------------------------------------------------------------------------- Actual(c) $1,000 $ 748.70 $4.45 1.01% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,020.11 $5.14 1.01% - -------------------------------------------------------------------------------------------- Class B - -------------------------------------------------------------------------------------------- Actual(c) $1,000 $ 745.40 $7.74 1.76% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,016.33 $8.94 1.76% - -------------------------------------------------------------------------------------------- Class C - -------------------------------------------------------------------------------------------- Actual(c) $1,000 $ 746.20 $7.75 1.76% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,016.33 $8.94 1.76% - -------------------------------------------------------------------------------------------- Class I - -------------------------------------------------------------------------------------------- Actual(c) $1,000 $ 750.30 $2.82 .64% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,021.98 $3.26 .64% - -------------------------------------------------------------------------------------------- Class R2 - -------------------------------------------------------------------------------------------- Actual(d) $1,000 $ 754.40 $5.33 1.45% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,017.90 $7.37 1.45% - -------------------------------------------------------------------------------------------- Class R3 - -------------------------------------------------------------------------------------------- Actual(d) $1,000 $ 758.20 $4.42 1.20% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,019.16 $6.11 1.20% - -------------------------------------------------------------------------------------------- Class R4 - -------------------------------------------------------------------------------------------- Actual(c) $1,000 $ 749.50 $4.01 .91% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,020.62 $4.63 .91% - -------------------------------------------------------------------------------------------- Class R5 - -------------------------------------------------------------------------------------------- Actual(d) $1,000 $ 756.10 $2.58 .70% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,021.68 $3.57 .70% - -------------------------------------------------------------------------------------------- </Table> - -------------------------------------------------------------------------------- 12 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- <Table> <Caption> BEGINNING ENDING EXPENSES ACCOUNT VALUE ACCOUNT VALUE PAID DURING ANNUALIZED JULY 1, 2008(A) DEC. 31, 2008 THE PERIOD(B) EXPENSE RATIO - -------------------------------------------------------------------------------------------- Class W - -------------------------------------------------------------------------------------------- Actual(c) $1,000 $ 748.70 $4.76 1.08% - -------------------------------------------------------------------------------------------- Hypothetical (5% return before expenses) $1,000 $1,019.76 $5.50 1.08% - -------------------------------------------------------------------------------------------- </Table> (a) The beginning account values for Classes R2, R3 and R5 are as of Aug. 1, 2008 (when shares of these classes became publicly available) for actual expense calculations, and as of July 1, 2008 for hypothetical expense calculations. (b) Expenses for Classes A, B, C, I, R4 and W are equal to the Fund's annualized expense ratio as indicated above, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). Actual expenses for Classes R2, R3 and R5 are equal to the Fund's annualized expense ratio as indicated above, multiplied by the average account value over the period, multiplied by 153/365 (to reflect the period from Aug. 1, 2008 to Dec. 31, 2008). Hypothetical expenses for Classes R2, R3 and R5 are equal to the Fund's annualized expense ratio as indicated above, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). (c) Based on the actual return for the six months ended Dec. 31, 2008: -25.13% for Class A, -25.46% for Class B, -25.38% for Class C, -24.97% for Class I, -25.05% and -25.13% for Class W. (d) Based on the actual return for the period from Aug. 1, 2008 (when shares became publicly available) to Dec. 31, 2008: -24.56% for Class R2, -24.48% for Class R3 and -24.39% for Class R5. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 13 PORTFOLIO OF INVESTMENTS ------------------------------------------------------- DEC. 31, 2008 (UNAUDITED) (Percentages represent value of investments compared to net assets) INVESTMENTS IN SECURITIES <Table> <Caption> COMMON STOCKS (94.8%) ISSUER SHARES VALUE(a) AEROSPACE & DEFENSE (0.8%) Honeywell Intl 282,775 $9,283,503 - ------------------------------------------------------------------------------------- BEVERAGES (1.4%) Coca-Cola 166,062 7,517,627 Diageo ADR 145,103(c) 8,233,144 --------------- Total 15,750,771 - ------------------------------------------------------------------------------------- CHEMICALS (4.0%) Air Products & Chemicals 113,948 5,728,166 Dow Chemical 619,174 9,343,336 Eastman Chemical 146,887 4,657,787 EI du Pont de Nemours & Co 791,167 20,016,524 Olin 233,198 4,216,220 --------------- Total 43,962,033 - ------------------------------------------------------------------------------------- COMMERCIAL BANKS (5.4%) Comerica 303,188 6,018,282 HSBC Holdings 607,473(c) 6,031,666 Natl Australia Bank 597,044(c) 8,953,800 PNC Financial Services Group 68,323 3,347,827 Regions Financial 367,805 2,927,728 US Bancorp 986,297 24,667,287 Wells Fargo & Co 280,171 8,259,441 --------------- Total 60,206,031 - ------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES (1.9%) Deluxe 341,054 5,102,168 Pitney Bowes 285,797 7,282,107 RR Donnelley & Sons 329,031 4,468,241 Waste Management 131,434 4,355,723 --------------- Total 21,208,239 - ------------------------------------------------------------------------------------- COMMUNICATIONS EQUIPMENT (0.3%) Nokia ADR 207,656(c) 3,239,434 - ------------------------------------------------------------------------------------- COMPUTERS & PERIPHERALS (0.3%) Seagate Technology 669,873(c) 2,967,537 - ------------------------------------------------------------------------------------- CONTAINERS & PACKAGING (0.7%) Packaging Corp of America 614,369 8,269,407 - ------------------------------------------------------------------------------------- DISTRIBUTORS (0.6%) Genuine Parts 163,168 6,177,540 - ------------------------------------------------------------------------------------- DIVERSIFIED FINANCIAL SERVICES (4.4%) Bank of America 1,777,919 25,033,099 JPMorgan Chase & Co 742,605 23,414,336 KKR Financial Holdings LLC 311,972 492,916 --------------- Total 48,940,351 - ------------------------------------------------------------------------------------- DIVERSIFIED TELECOMMUNICATION SERVICES (14.7%) AT&T 1,493,603 42,567,686 BT Group 3,330,789(c) 6,795,701 Deutsche Telekom ADR 640,068(c) 9,793,040 Embarq 401,506 14,438,156 FairPoint Communications 468,751 1,537,503 Frontier Communications 1,107,095 9,676,010 Qwest Communications Intl 4,235,809 15,418,345 Telefonos de Mexico ADR Series L 424,305(c) 8,884,947 Telmex Internacional ADR 424,305(c) 4,820,105 Telstra 2,515,371(c) 6,868,965 Verizon Communications 1,122,450 38,051,055 Windstream 499,550 4,595,860 --------------- Total 163,447,373 - ------------------------------------------------------------------------------------- ELECTRIC UTILITIES (4.2%) American Electric Power 185,711 6,180,462 Duke Energy 685,100 10,283,351 Pepco Holdings 327,208 5,811,214 Pinnacle West Capital 208,570 6,701,354 Progress Energy 166,822 6,647,857 Southern 199,992 7,399,704 UIL Holdings 98,748 2,965,402 --------------- Total 45,989,344 - ------------------------------------------------------------------------------------- ELECTRICAL EQUIPMENT (0.7%) Hubbell Cl B 240,852 7,871,043 - ------------------------------------------------------------------------------------- </Table> See accompanying Notes to Portfolio of Investments. - -------------------------------------------------------------------------------- 14 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- <Table> <Caption> COMMON STOCKS (CONTINUED) ISSUER SHARES VALUE(a) ENERGY EQUIPMENT & SERVICES (1.8%) Halliburton 392,394 $7,133,723 Schlumberger 120,114 5,084,426 Transocean 154,441(b) 7,297,337 --------------- Total 19,515,486 - ------------------------------------------------------------------------------------- FOOD PRODUCTS (1.8%) B&G Foods Cl A 520,795 2,812,293 ConAgra Foods 416,517 6,872,531 Kraft Foods Cl A 275,103 7,386,515 Reddy Ice Holdings 674,461 971,224 Sara Lee 207,578 2,032,189 --------------- Total 20,074,752 - ------------------------------------------------------------------------------------- GAS UTILITIES (1.1%) Nicor 350,456 12,174,841 - ------------------------------------------------------------------------------------- HOUSEHOLD DURABLES (1.3%) Newell Rubbermaid 216,758 2,119,893 Tupperware Brands 522,935 11,870,625 --------------- Total 13,990,518 - ------------------------------------------------------------------------------------- INDUSTRIAL CONGLOMERATES (0.2%) Tomkins 1,415,646(c) 2,585,768 - ------------------------------------------------------------------------------------- INSURANCE (2.5%) Allstate 276,548 9,059,712 Lincoln Natl 105,792 1,993,121 Marsh & McLennan Companies 126,410 3,067,971 Montpelier Re Holdings 549,636(c) 9,228,388 Unitrin 85,687 1,365,851 XL Capital Cl A 939,924(c) 3,477,719 --------------- Total 28,192,762 - ------------------------------------------------------------------------------------- MACHINERY (1.8%) Caterpillar 306,477 13,690,327 Harsco 215,614 5,968,196 --------------- Total 19,658,523 - ------------------------------------------------------------------------------------- MARINE (--%) Aries Maritime Transport 415,529(c) 145,435 - ------------------------------------------------------------------------------------- MEDIA (2.5%) CBS Cl B 978,148 8,011,032 Cinemark Holdings 178,191 1,323,959 GateHouse Media 328,856 12,497 Natl CineMedia 686,118 6,957,237 Regal Entertainment Group Cl A 1,064,402 10,867,544 --------------- Total 27,172,269 - ------------------------------------------------------------------------------------- METALS & MINING (1.8%) Compass Minerals Intl 242,420 14,220,357 Rio Tinto ADR 24,677(c) 2,194,032 Southern Copper 231,650 3,720,299 --------------- Total 20,134,688 - ------------------------------------------------------------------------------------- MULTILINE RETAIL (0.4%) Macy's 455,724 4,716,743 - ------------------------------------------------------------------------------------- MULTI-UTILITIES (4.7%) Ameren 92,246 3,068,102 CH Energy Group 75,884 3,899,679 Consolidated Edison 253,080 9,852,405 Dominion Resources 213,719 7,659,689 DTE Energy 174,514 6,224,914 Natl Grid 1,128,249(c) 11,310,401 NiSource 275,657 3,023,957 NSTAR 54,931 2,004,432 Public Service Enterprise Group 158,685 4,628,841 --------------- Total 51,672,420 - ------------------------------------------------------------------------------------- OIL, GAS & CONSUMABLE FUELS (13.5%) BP ADR 848,176(c) 39,643,746 Chevron 670,174 49,572,771 Enbridge 671,162(c) 21,792,630 Enbridge Energy Management LLC 1(b) 14 Eni 409,662(c) 9,902,307 General Maritime 120,833 1,304,996 Kinder Morgan Management LLC --(b) 1 Royal Dutch Shell ADR 276,563(c) 14,641,245 Ship Finance Intl 165,376(c) 1,827,405 Spectra Energy 350,261 5,513,108 TransCanada 252,000(c) 6,839,280 --------------- Total 151,037,503 - ------------------------------------------------------------------------------------- PAPER & FOREST PRODUCTS (1.4%) Intl Paper 183,680 2,167,424 </Table> See accompanying Notes to Portfolio of Investments. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 15 PORTFOLIO OF INVESTMENTS (continued) ------------------------------------------- <Table> <Caption> COMMON STOCKS (CONTINUED) ISSUER SHARES VALUE(a) PAPER & FOREST PRODUCTS (CONT.) MeadWestvaco 334,122 $3,738,825 Stora Enso Series R 505,582(c) 4,022,997 Weyerhaeuser 189,210 5,791,718 --------------- Total 15,720,964 - ------------------------------------------------------------------------------------- PHARMACEUTICALS (10.8%) Biovail 602,120(c) 5,690,034 Bristol-Myers Squibb 1,463,169 34,018,679 Johnson & Johnson 243,610 14,575,186 Merck & Co 719,380 21,869,152 Pfizer 2,117,811 37,506,433 Wyeth 153,676 5,764,387 --------------- Total 119,423,871 - ------------------------------------------------------------------------------------- REAL ESTATE INVESTMENT TRUSTS (REITS) (0.3%) LaSalle Hotel Properties 275,094 3,039,789 - ------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT (3.0%) Intel 541,379 7,936,616 Microchip Technology 705,815 13,784,567 Taiwan Semiconductor Mfg ADR 1,453,714(c) 11,484,341 --------------- Total 33,205,524 - ------------------------------------------------------------------------------------- THRIFTS & MORTGAGE FINANCE (0.4%) Capitol Federal Financial 97,582 4,449,739 - ------------------------------------------------------------------------------------- TOBACCO (5.1%) Lorillard 619,150 34,889,103 Philip Morris Intl 493,620 21,477,406 --------------- Total 56,366,509 - ------------------------------------------------------------------------------------- TRADING COMPANIES & DISTRIBUTORS (0.4%) Babcock & Brown Air ADR 705,550(c) 4,776,574 - ------------------------------------------------------------------------------------- WIRELESS TELECOMMUNICATION SERVICES (0.5%) Vodafone Group ADR 252,972(c) 5,170,748 - ------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (Cost: $1,381,760,227) $1,050,538,032 - ------------------------------------------------------------------------------------- </Table> <Table> <Caption> BONDS (0.9%) COUPON PRINCIPAL ISSUER RATE AMOUNT VALUE(a) BROKERAGE Goldman Sachs Group Cv 06-11-09 20.70% $7,751,600(d,e,f) $9,474,959 - ------------------------------------------------------------------------------------- TOTAL BONDS (Cost: $7,751,600) $9,474,959 - ------------------------------------------------------------------------------------- </Table> <Table> <Caption> PREFERRED STOCKS (0.6%) ISSUER SHARES VALUE(a) PHARMACEUTICALS (0.3%) Schering-Plough 6.00% Cv 20,400 $3,550,875 - ------------------------------------------------------------------------------------- PROPERTY & CASUALTY (0.3%) XL Capital 10.75% Cv 250,000(c) 2,500,000 XL Capital 7.00% Cv 255,800(c) 493,694 --------------- Total 2,993,694 - ------------------------------------------------------------------------------------- TOTAL PREFERRED STOCKS (Cost: $17,764,662) $6,544,569 - ------------------------------------------------------------------------------------- <Caption> MONEY MARKET FUND (3.2%) SHARES VALUE(a) RiverSource Short-Term Cash Fund, 0.48% 34,958,643(g) $34,958,643 - ------------------------------------------------------------------------------------- TOTAL MONEY MARKET FUND (Cost: $34,958,643) $34,958,643 - ------------------------------------------------------------------------------------- TOTAL INVESTMENTS IN SECURITIES (Cost: $1,442,235,132)(h) $1,101,516,203 ===================================================================================== </Table> See accompanying Notes to Portfolio of Investments. - -------------------------------------------------------------------------------- 16 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- INVESTMENTS IN DERIVATIVES FORWARD FOREIGN CURRENCY CONTRACTS OPEN AT DEC. 31, 2008 <Table> <Caption> CURRENCY TO BE CURRENCY TO BE UNREALIZED UNREALIZED EXCHANGE DATE DELIVERED RECEIVED APPRECIATION DEPRECIATION - ------------------------------------------------------------------------------------------- Jan. 2, 2009 197,744 138,917 $-- $(3,774) U.S. Dollar European Monetary Unit - ------------------------------------------------------------------------------------------- Jan. 5, 2009 478,970 336,360 -- (9,310) U.S. Dollar European Monetary Unit - ------------------------------------------------------------------------------------------- Total $-- $(13,084) - ------------------------------------------------------------------------------------------- </Table> NOTES TO PORTFOLIO OF INVESTMENTS (a) Securities are valued by using procedures described in Note 1 to the financial statements. (b) Non-income producing. (c) Foreign security values are stated in U.S. dollars. At Dec. 31, 2008, the value of foreign securities represented 20.2% of net assets. (d) Represents a security sold under Rule 144A, which is exempt from registration under the Securities Act of 1933, as amended. This security may be determined to be liquid under guidelines established by the Fund's Board of Directors. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At Dec. 31, 2008, the value of these securities amounted to $9,474,959 or 0.9% of net assets. (e) This privately issued security is an aggregate mandatory exchangeable note whose investment results are designed to correspond generally to the performance of a specific basket of common stocks. Upon maturity, the security will be exchanged for either cash or at the option of the issuer, the issuer may deliver shares of the referenced securities. (f) Identifies issues considered to be illiquid as to their marketability (see Note 1 to the financial statements). Information concerning such security holdings at Dec. 31, 2008, is as follows: <Table> <Caption> ACQUISITION SECURITY DATES COST ---------------------------------------------------------------- Goldman Sachs Group* 20.70% Cv 2009 12-04-08 $7,751,600 </Table> * Represents a security sold under Rule 144A, which is exempt from registration under the Securities Act of 1933, as amended. (g) Affiliated Money Market Fund -- See Note 5 to the financial statements. The rate shown is the seven-day current annualized yield at Dec. 31, 2008. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 17 PORTFOLIO OF INVESTMENTS (continued) ------------------------------------------- NOTES TO PORTFOLIO OF INVESTMENTS (CONTINUED) (h) At Dec. 31, 2008, the cost of securities for federal income tax purposes was approximately $1,442,235,000 and the approximate aggregate gross unrealized appreciation and depreciation based on that cost was: <Table> Unrealized appreciation $54,503,000 Unrealized depreciation (395,222,000) ------------------------------------------------------------ Net unrealized depreciation $(340,719,000) ------------------------------------------------------------ </Table> The industries identified above are based on the Global Industry Classification Standard (GICS), which was developed by and is the exclusive property of Morgan Stanley Capital International Inc. and Standard & Poor's, a division of The McGraw-Hill Companies, Inc. - -------------------------------------------------------------------------------- 18 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- FAIR VALUE MEASUREMENTS Statement of Financial Accounting Standards No. 157 (SFAS 157) seeks to implement more uniform reporting relating to the fair valuation of securities for financial statement purposes. Mutual funds are required to implement the requirements of this standard for fiscal years beginning after Nov. 15, 2007. While uniformity of presentation is the objective of the standard, industry implementation has just begun and it is likely that there will be a range of practices utilized and it will be some period of time before industry practices become more uniform. For this reason care should be exercised in interpreting this information and/or using it for comparison with other mutual funds. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below: - Level 1 -- quoted prices in active markets for identical securities - Level 2 -- other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risks, etc.) - Level 3 -- significant unobservable inputs (including the Fund's own assumptions in determining the fair value of investments) Observable inputs are those based on market data obtained from sources independent of the fund, and unobservable inputs reflect the fund's own assumptions based on the best information available. The input levels are not necessarily an indication of the risk or liquidity associated with investments at that level. The following table is a summary of the inputs used to value the Fund's investments as of Dec. 31, 2008: <Table> <Caption> FAIR VALUE AT DEC. 31, 2008 ------------------------------------------------------------- LEVEL 1 LEVEL 2 QUOTED PRICES OTHER LEVEL 3 IN ACTIVE SIGNIFICANT SIGNIFICANT MARKETS FOR OBSERVABLE UNOBSERVABLE DESCRIPTION IDENTICAL ASSETS INPUTS INPUTS TOTAL - ----------------------------------------------------------------------------------- Investments in securities $1,081,213,796 $20,302,407 $-- $1,101,516,203 Other financial instruments* -- (13,084) -- (13,084) - ----------------------------------------------------------------------------------- Total $1,081,213,796 $20,289,323 $-- $1,101,503,119 - ----------------------------------------------------------------------------------- </Table> * Other financial instruments are derivative instruments, such as forwards, which are valued at the unrealized appreciation/depreciation on the instrument. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 19 PORTFOLIO OF INVESTMENTS (continued) ------------------------------------------- HOW TO FIND INFORMATION ABOUT THE FUND'S PORTFOLIO HOLDINGS (i) The Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission (Commission) for the first and third quarters of each fiscal year on Form N-Q; (ii) The Fund's Forms N-Q are available on the Commission's website at http://www.sec.gov; (iii)The Fund's Forms N-Q may be reviewed and copied at the Commission's Public Reference Room in Washington, DC (information on the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330); and (iv) The Fund's complete schedule of portfolio holdings, as disclosed in its annual and semiannual shareholder reports and in its filings on Form N-Q, can be found at riversource.com/funds. - -------------------------------------------------------------------------------- 20 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT STATEMENT OF ASSETS AND LIABILITIES -------------------------------------------- DEC. 31, 2008 (UNAUDITED) <Table> <Caption> ASSETS Investments in securities, at value Unaffiliated issuers (identified cost $1,407,276,489) $1,066,557,560 Affiliated money market fund (identified cost $34,958,643) 34,958,643 - ---------------------------------------------------------------------------------------- Total investments in securities (identified cost $1,442,235,132) 1,101,516,203 Capital shares receivable 4,419,232 Dividends and accrued interest receivable 4,846,641 Receivable for investment securities sold 285,822 - ---------------------------------------------------------------------------------------- Total assets 1,111,067,898 - ---------------------------------------------------------------------------------------- LIABILITIES Capital shares payable 2,010,833 Payable for investment securities purchased 663,630 Unrealized depreciation on forward foreign currency contracts 13,084 Accrued investment management services fees 17,605 Accrued distribution fees 380,341 Accrued transfer agency fees 5,956 Accrued administrative services fees 1,685 Accrued plan administration services fees 237 Other accrued expenses 188,370 - ---------------------------------------------------------------------------------------- Total liabilities 3,281,741 - ---------------------------------------------------------------------------------------- Net assets applicable to outstanding capital stock $1,107,786,157 - ---------------------------------------------------------------------------------------- REPRESENTED BY Capital stock -- $.01 par value $ 1,962,480 Additional paid-in capital 1,887,309,802 Undistributed net investment income 14,017,703 Accumulated net realized gain (loss) (454,732,718) Unrealized appreciation (depreciation) on investments and on translation of assets and liabilities in foreign currencies (340,771,110) - ---------------------------------------------------------------------------------------- Total -- representing net assets applicable to outstanding capital stock $1,107,786,157 - ---------------------------------------------------------------------------------------- </Table> <Table> <Caption> NET ASSET VALUE PER SHARE NET ASSETS SHARES OUTSTANDING NET ASSET VALUE PER SHARE Class A $834,983,116 147,862,660 $5.65(1) Class B $ 95,776,119 17,076,295 $5.61 Class C $ 14,286,876 2,552,366 $5.60 Class I $162,160,410 28,654,224 $5.66 Class R2 $ 3,693 653 $5.66 Class R3 $ 3,694 653 $5.66 Class R4 $ 565,341 99,888 $5.66 Class R5 $ 3,694 653 $5.66 Class W $ 3,214 568 $5.66 - ----------------------------------------------------------------------------------------- </Table> (1) The maximum offering price per share for Class A is $5.99. The offering price is calculated by dividing the net asset value by 1.0 minus the maximum sales charge of 5.75%. The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 21 STATEMENT OF OPERATIONS -------------------------------------------------------- SIX MONTHS ENDED DEC. 31, 2008 (UNAUDITED) <Table> <Caption> INVESTMENT INCOME Income: Dividends $ 33,483,898 Interest 2,335,284 Income distributions from affiliated money market fund 146,807 Fee income from securities lending 125,039 Less foreign taxes withheld (785,969) - --------------------------------------------------------------------------- Total income 35,305,059 - --------------------------------------------------------------------------- Expenses: Investment management services fees 3,417,075 Distribution fees Class A 1,219,030 Class B 582,498 Class C 84,722 Class R2 9 Class R3 4 Class W 5 Transfer agency fees Class A 963,559 Class B 123,339 Class C 17,261 Class R2 1 Class R3 1 Class R4 181 Class R5 1 Class W 4 Administrative services fees 356,142 Plan administration services fees Class R2 4 Class R3 4 Class R4 907 Compensation of board members 17,583 Custodian fees 79,660 Printing and postage 135,800 Registration fees 38,076 Professional fees 23,154 Other 23,362 - --------------------------------------------------------------------------- Total expenses 7,082,382 Expenses waived/reimbursed by the Investment Manager and its affiliates (462,262) Earnings and bank fee credits on cash balances (7,027) - --------------------------------------------------------------------------- Total net expenses 6,613,093 - --------------------------------------------------------------------------- Investment income (loss) -- net 28,691,966 - --------------------------------------------------------------------------- </Table> - -------------------------------------------------------------------------------- 22 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- <Table> <Caption> REALIZED AND UNREALIZED GAIN (LOSS) -- NET Net realized gain (loss) on: Security transactions $(110,451,672) Foreign currency transactions (244,980) - --------------------------------------------------------------------------- Net realized gain (loss) on investments (110,696,652) Net change in unrealized appreciation (depreciation) on investments and on translation of assets and liabilities in foreign currencies (277,555,310) - --------------------------------------------------------------------------- Net gain (loss) on investments and foreign currencies (388,251,962) - --------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from operations $(359,559,996) - --------------------------------------------------------------------------- </Table> The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 23 STATEMENTS OF CHANGES IN NET ASSETS -------------------------------------------- <Table> <Caption> SIX MONTHS ENDED YEAR ENDED DEC. 31, 2008 JUNE 30, 2008 (UNAUDITED) OPERATIONS AND DISTRIBUTIONS Investment income (loss) -- net $ 28,691,966 $ 62,167,305 Net realized gain (loss) on investments (110,696,652) 56,219,781 Net change in unrealized appreciation (depreciation) on investments and on translation of assets and liabilities in foreign currencies (277,555,310) (471,877,412) - --------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from operations (359,559,996) (353,490,326) - --------------------------------------------------------------------------------------------------- Distributions to shareholders from: Net investment income Class A (21,012,668) (42,059,205) Class B (2,021,717) (4,705,394) Class C (301,908) (577,096) Class I (3,769,793) (8,053,021) Class R2 (93) N/A Class R3 (97) N/A Class R4 (16,878) (37,117) Class R5 (102) N/A Class W (82) (149) - --------------------------------------------------------------------------------------------------- Total distributions (27,123,338) (55,431,982) - --------------------------------------------------------------------------------------------------- </Table> - -------------------------------------------------------------------------------- 24 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- <Table> <Caption> SIX MONTHS ENDED YEAR ENDED DEC. 31, 2008 JUNE 30, 2008 (UNAUDITED) CAPITAL SHARE TRANSACTIONS Proceeds from sales Class A shares $ 152,712,690 $ 333,666,137 Class B shares 10,599,006 30,861,475 Class C shares 2,370,319 6,798,093 Class I shares 38,187,947 55,427,460 Class R2 shares 5,000 N/A Class R3 shares 5,000 N/A Class R4 shares 31,967 308,726 Class R5 shares 5,000 N/A Reinvestment of distributions at net asset value Class A shares 19,878,941 39,955,948 Class B shares 1,943,897 4,536,786 Class C shares 276,426 525,590 Class I shares 3,769,554 8,052,561 Class R4 shares 16,878 37,117 Payments for redemptions Class A shares (208,831,066) (353,444,406) Class B shares (52,143,026) (122,803,455) Class C shares (4,575,089) (6,247,970) Class I shares (26,543,661) (56,505,344) Class R4 shares (142,173) (550,381) - --------------------------------------------------------------------------------------------------- Increase (decrease) in net assets from capital share transactions (62,432,390) (59,381,663) - --------------------------------------------------------------------------------------------------- Total increase (decrease) in net assets (449,115,724) (468,303,971) Net assets at beginning of period 1,556,901,881 2,025,205,852 - --------------------------------------------------------------------------------------------------- Net assets at end of period $1,107,786,157 $1,556,901,881 - --------------------------------------------------------------------------------------------------- Undistributed net investment income $ 14,017,703 $ 12,449,075 - --------------------------------------------------------------------------------------------------- </Table> The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 25 FINANCIAL HIGHLIGHTS ----------------------------------------------------------- CLASS A <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007 2006 2005 Net asset value, beginning of period $7.72 $9.65 $7.83 $7.30 $6.39 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .15(b) .30(b) .26 .25 .22 Net gains (losses) (both realized and unrealized) (2.07) (1.96) 1.81 .50 .91 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.92) (1.66) 2.07 .75 1.13 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.15) (.27) (.25) (.22) (.22) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.65 $7.72 $9.65 $7.83 $7.30 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $835 $1,167 $1,453 $907 $808 - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) 1.09%(e) 1.11% 1.15% 1.16% 1.12% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) 1.01%(e) 1.11% 1.15% 1.16% 1.12% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.54%(e) 3.31% 3.15% 3.27% 3.20% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% 20% 17% 19% 24% - -------------------------------------------------------------------------------------------------------------- Total return(h) (25.13%)(i) (17.46%) 26.66% 10.34% 17.79% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Total return does not reflect payment of a sales charge. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 26 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- CLASS B <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007 2006 2005 Net asset value, beginning of period $7.67 $9.59 $7.78 $7.25 $6.35 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .13(b) .22(b) .19 .19 .17 Net gains (losses) (both realized and unrealized) (2.07) (1.94) 1.80 .50 .89 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.94) (1.72) 1.99 .69 1.06 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.12) (.20) (.18) (.16) (.16) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.61 $7.67 $9.59 $7.78 $7.25 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $96 $171 $303 $275 $297 - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) 1.85%(e) 1.87% 1.91% 1.93% 1.88% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) 1.76%(e) 1.87% 1.91% 1.93% 1.88% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 3.73%(e) 2.48% 2.38% 2.50% 2.41% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% 20% 17% 19% 24% - -------------------------------------------------------------------------------------------------------------- Total return(h) (25.46%)(i) (18.15%) 25.76% 9.55% 16.84% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Total return does not reflect payment of a sales charge. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 27 FINANCIAL HIGHLIGHTS (continued) ----------------------------------------------- CLASS C <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007 2006 2005 Net asset value, beginning of period $7.65 $9.57 $7.77 $7.25 $6.35 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .13(b) .23(b) .19 .18 .17 Net gains (losses) (both realized and unrealized) (2.06) (1.95) 1.79 .50 .89 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.93) (1.72) 1.98 .68 1.06 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.12) (.20) (.18) (.16) (.16) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.60 $7.65 $9.57 $7.77 $7.25 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $14 $21 $26 $15 $12 - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) 1.85%(e) 1.87% 1.91% 1.92% 1.89% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) 1.76%(e) 1.87% 1.91% 1.92% 1.89% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 3.76%(e) 2.56% 2.40% 2.50% 2.43% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% 20% 17% 19% 24% - -------------------------------------------------------------------------------------------------------------- Total return(h) (25.38%)(i) (18.15%) 25.74% 9.47% 16.86% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Total return does not reflect payment of a sales charge. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 28 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- CLASS I <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(i) 2008 2007 2006 2005 Net asset value, beginning of period $7.73 $9.67 $7.85 $7.32 $6.41 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .17(b) .33(b) .30 .27 .25 Net gains (losses) (both realized and unrealized) (2.08) (1.97) 1.80 .51 .91 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.91) (1.64) 2.10 .78 1.16 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.16) (.30) (.28) (.25) (.25) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.66 $7.73 $9.67 $7.85 $7.32 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $162 $197 $242 $46 $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) .64%(e) .72% .76% .78% .70% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) .64%(e) .72% .76% .78% .70% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.94%(e) 3.70% 3.58% 3.52% 3.61% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% 20% 17% 19% 24% - -------------------------------------------------------------------------------------------------------------- Total return (24.97%)(h) (17.19%) 27.07% 10.78% 18.24% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Not annualized. (i) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 29 FINANCIAL HIGHLIGHTS (continued) ----------------------------------------------- CLASS R2 <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(b) Net asset value, beginning of period $7.67 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss)(c) .14 Net gains (losses) (both realized and unrealized) (2.01) - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.87) - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.14) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.66 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(d),(e) 1.50%(f) - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(e),(g),(h) 1.27%(f) - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.82%(f) - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% - -------------------------------------------------------------------------------------------------------------- Total return (24.56%)(i) - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) For the period from Aug. 1, 2008 (inception date) to Dec. 31, 2008 (Unaudited). (c) Per share amount has been calculated using the average shares outstanding method. (d) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (e) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratio. (f) Adjusted to an annual basis. (g) The investment manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (h) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the period ended Dec. 31, 2008. (i) Not annualized. The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 30 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- CLASS R3 <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(b) Net asset value, beginning of period $7.67 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss)(c) .15 Net gains (losses) (both realized and unrealized) (2.01) - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.86) - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.15) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.66 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(d),(e) 1.23%(f) - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(e),(g),(h) 1.01%(f) - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 5.08%(f) - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% - -------------------------------------------------------------------------------------------------------------- Total return (24.48%)(i) - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) For the period from Aug. 1, 2008 (inception date) to Dec. 31, 2008 (Unaudited). (c) Per share amount has been calculated using the average shares outstanding method. (d) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (e) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratio. (f) Adjusted to an annual basis. (g) The investment manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (h) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the period ended Dec. 31, 2008. (i) Not annualized. The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 31 FINANCIAL HIGHLIGHTS (continued) ----------------------------------------------- CLASS R4 <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(i) 2008 2007 2006 2005 Net asset value, beginning of period $7.74 $9.67 $7.85 $7.32 $6.41 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .16(b) .33(b) .27 .26 .23 Net gains (losses) (both realized and unrealized) (2.08) (1.95) 1.81 .50 .91 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.92) (1.62) 2.08 .76 1.14 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.16) (.31) (.26) (.23) (.23) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.66 $7.74 $9.67 $7.85 $7.32 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $1 $1 $1 $1 $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) .94%(e) 1.02% 1.03% .99% .94% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) .66%(e) .76% 1.02% .99% .94% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.84%(e) 3.62% 3.29% 3.37% 3.37% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% 20% 17% 19% 24% - -------------------------------------------------------------------------------------------------------------- Total return (25.05%)(h) (17.00%) 26.75% 10.56% 17.93% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Not annualized. (i) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 32 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- CLASS R5 <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(b) Net asset value, beginning of period $7.67 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss)(c) .15 Net gains (losses) (both realized and unrealized) (2.00) - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.85) - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.16) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.66 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(d),(e) .75%(f) - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(e),(g),(h) .71%(f) - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 5.37%(f) - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% - -------------------------------------------------------------------------------------------------------------- Total return (24.39%)(i) - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) For the period from Aug. 1, 2008 (inception date) to Dec. 31, 2008 (Unaudited). (c) Per share amount has been calculated using the average shares outstanding method. (d) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (e) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratio. (f) Adjusted to an annual basis. (g) The investment manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (h) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the period ended Dec. 31, 2008. (i) Not annualized. The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 33 FINANCIAL HIGHLIGHTS (continued) ----------------------------------------------- CLASS W <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007(b) Net asset value, beginning of period $7.73 $9.67 $8.80 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .15(c) .29(c) .25 Net gains (losses) (both realized and unrealized) (2.08) (1.97) .81 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (1.93) (1.68) 1.06 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.14) (.26) (.19) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.66 $7.73 $9.67 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $-- $-- $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(d),(e) 1.08%(f) 1.16% 1.19%(f) - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(e),(g),(h) 1.08%(f) 1.16% 1.19%(f) - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.49%(f) 3.27% 2.97%(f) - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 14% 20% 17% - -------------------------------------------------------------------------------------------------------------- Total return (25.13%)(i) (17.58%) 12.15%(i) - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) For the period from Dec. 1, 2006 (inception date) to June 30, 2007. (c) Per share amounts have been calculated using the average shares outstanding method. (d) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (e) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (f) Adjusted to an annual basis. (g) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (h) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 34 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT NOTES TO FINANCIAL STATEMENTS -------------------------------------------------- (UNAUDITED AS TO DEC. 31, 2008) 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES RiverSource Dividend Opportunity Fund (the Fund) is a series of RiverSource Sector Series, Inc. and is registered under the Investment Company Act of 1940 (as amended) as a diversified, open-end management investment company. RiverSource Sector Series, Inc. has 10 billion authorized shares of capital stock that can be allocated among the separate series as designated by the Board of Directors (the Board). The Fund invests primarily in dividend-paying common and preferred stocks. The Fund offers Class A, Class B, Class C, Class I, Class R2, Class R3, Class R4, Class R5 and Class W shares. - - Class A shares are sold with a front-end sales charge. - - Class B shares may be subject to a contingent deferred sales charge (CDSC) and automatically convert to Class A shares during the ninth year of ownership. - - Class C shares may be subject to a CDSC. - - Class I, Class R2, Class R3, Class R4 and Class R5 shares are sold without a front-end sales charge or CDSC and are offered to qualifying institutional investors. Class R2, Class R3 and Class R5 became available effective Aug. 1, 2008. - - Class W shares are sold without a front-end sales charge or CDSC and are offered through qualifying discretionary accounts. At Dec. 31, 2008, RiverSource Investments, LLC (RiverSource Investments or the Investment Manager) and the RiverSource affiliated funds-of-funds owned 100% of Class I shares and the Investment Manager owned 100% of Class R2, Class R3, Class R5 and Class W shares. All classes of shares have identical voting, dividend and liquidation rights. Class specific expenses (e.g., distribution and service fees, transfer agency fees, plan administration services fees) differ among classes. Income, expenses (other than class specific expenses) and realized and unrealized gains or losses on investments are allocated to each class of shares based upon its relative net assets. The Fund's significant accounting policies are summarized below: USE OF ESTIMATES Preparing financial statements that conform to U.S. generally accepted accounting principles requires management to make estimates (e.g., on assets, - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 35 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- liabilities and contingent assets and liabilities) that could differ from actual results. VALUATION OF SECURITIES Effective July 1, 2008, the Fund adopted Statement of Financial Accounting Standards No. 157 "Fair Value Measurements" (SFAS 157). SFAS 157 establishes an authoritative definition of fair value, sets out a hierarchy for measuring fair value, and requires additional disclosures about the inputs used to develop the measurements of fair value and the effect of certain measurements reported in the Statement of Operations for a fiscal period. There was no impact to the Fund's net assets or results of operations upon adoption. The fair valuation measurements disclosure can be found following the Notes to Portfolio of Investments. All securities are valued at the close of each business day. Securities traded on national securities exchanges or included in national market systems are valued at the last quoted sales price. Debt securities are generally traded in the over-the-counter market and are valued at a price that reflects fair value as quoted by dealers in these securities or by an independent pricing service. When market quotes are not readily available, the pricing service, in determining fair values of debt securities, takes into consideration such factors as current quotations by broker/dealers, coupon, maturity, quality, type of issue, trading characteristics, and other yield and risk factors it deems relevant in determining valuations. Foreign securities are valued based on quotations from the principal market in which such securities are normally traded. The procedures adopted by the Board generally contemplate the use of fair valuation in the event that price quotations or valuations are not readily available, price quotations or valuations from other sources are not reflective of market value and thus deemed unreliable, or a significant event has occurred in relation to a security or class of securities (such as foreign securities) that is not reflected in price quotations or valuations from other sources. A fair value price is a good faith estimate of the value of a security at a given point in time. Many securities markets and exchanges outside the U.S. close prior to the close of the New York Stock Exchange and therefore the closing prices for securities in such markets or on such exchanges may not fully reflect events that occur after such close but before the close of the New York Stock Exchange, including significant movements in the U.S. market after foreign exchanges have closed. Accordingly, in those situations, Ameriprise Financial, Inc. (Ameriprise Financial), parent company of the Investment Manager, as administrator to the Fund, will fair value foreign securities pursuant to procedures adopted by the Board, including utilizing a third party pricing service to determine these fair - -------------------------------------------------------------------------------- 36 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- values. These procedures take into account multiple factors, including movements in the U.S. securities markets, to determine a good faith estimate that reasonably reflects the current market conditions as of the close of the New York Stock Exchange. Short-term securities maturing in more than 60 days from the valuation date are valued at the market price or approximate market value based on current interest rates; those maturing in 60 days or less are valued at amortized cost, which approximates fair value. ILLIQUID SECURITIES At Dec. 31, 2008, investments in securities included issues that are illiquid which the Fund currently limits to 15% of net assets, at market value, at the time of purchase. The aggregate value of such securities at Dec. 31, 2008 was $9,474,959 representing 0.86% of net assets. Certain illiquid securities may be valued by management at fair value according to procedures approved, in good faith, by the Board. According to Board guidelines, certain unregistered securities are determined to be liquid and are not included within the 15% limitation specified above. Assets are liquid if they can be sold or disposed of in the ordinary course of business within seven days at approximately the value at which the asset is valued by the Fund. OPTION TRANSACTIONS To produce incremental earnings, protect gains, and facilitate buying and selling of securities for investments, the Fund may buy and write options traded on any U.S. or foreign exchange or in the over-the-counter market where completing the obligation depends upon the credit standing of the other party. Cash collateral may be collected by the Fund to secure certain over-the-counter options (OTC options) trades. Cash collateral held by the Fund for such option trades must be returned to the counterparty upon closure, exercise or expiration of the contract. The Fund also may buy and sell put and call options and write covered call options on portfolio securities as well as write cash-secured put options. The risk in writing a call option is that the Fund gives up the opportunity for profit if the market price of the security increases. The risk in writing a put option is that the Fund may incur a loss if the market price of the security decreases and the option is exercised. The risk in buying an option is that the Fund pays a premium whether or not the option is exercised. The Fund also has the additional risk of being unable to enter into a closing transaction if a liquid secondary market does not exist. Option contracts are valued daily at the closing prices on their primary exchanges and unrealized appreciation or depreciation is recorded. Option contracts, including OTC option contracts, with no readily available market value are - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 37 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- valued using quotations obtained from independent brokers as of the close of the New York Stock Exchange. The Fund will realize a gain or loss when the option transaction expires or closes. When an option is exercised, the proceeds on sales for a written call option, the purchase cost for a written put option or the cost of a security for a purchased put or call option is adjusted by the amount of premium received or paid. At Dec. 31, 2008, and for the six months then ended, the Fund had no outstanding option contracts. FUTURES TRANSACTIONS To gain exposure to or protect itself from market changes, the Fund may buy and sell financial futures contracts traded on any U.S. or foreign exchange. The Fund also may buy and write put and call options on these futures contracts. Risks of entering into futures contracts and related options include the possibility of an illiquid market and that a change in the value of the contract or option may not correlate with changes in the value of the underlying securities. Futures and options on futures are valued daily based upon the last sale price at the close of the market on the principal exchange on which they are traded. Upon entering into a futures contract, the Fund is required to deposit either cash or securities in an amount (initial margin) equal to a certain percentage of the contract value. Subsequent payments (variation margin) are made or received by the Fund each day. The variation margin payments are equal to the daily changes in the contract value and are recorded as unrealized gains and losses. The Fund recognizes a realized gain or loss when the contract is closed or expires. At Dec. 31, 2008, the Fund had no outstanding futures contracts. FOREIGN CURRENCY TRANSLATIONS AND FORWARD FOREIGN CURRENCY CONTRACTS Securities and other assets and liabilities denominated in foreign currencies are translated daily into U.S. dollars. Foreign currency amounts related to the purchase or sale of securities and income and expenses are translated at the exchange rate on the transaction date. The effect of changes in foreign exchange rates on realized and unrealized security gains or losses is reflected as a component of such gains or losses. In the Statement of Operations, net realized gains or losses from foreign currency transactions, if any, may arise from sales of foreign currency, closed forward contracts, exchange gains or losses realized between the trade date and settlement date on securities transactions, and other translation gains or losses on dividends, interest income and foreign withholding taxes. The Fund may enter into forward foreign currency contracts for operational purposes and to protect against adverse exchange rate fluctuation. The net U.S. dollar value of foreign currency underlying all contractual commitments held by the Fund and the resulting unrealized appreciation or depreciation are determined - -------------------------------------------------------------------------------- 38 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- using foreign currency exchange rates from an independent pricing service. The Fund is subject to the credit risk that the counterparty will not complete its contract obligations. GUARANTEES AND INDEMNIFICATIONS Under the Fund's organizational documents, its officers and directors are indemnified against certain liabilities arising out of the performance of their duties to the Fund. In addition, certain of the Fund's contracts with its service providers contain general indemnification clauses. The Fund's maximum exposure under these arrangements is unknown since the amount of any future claims that may be made against the Fund cannot be determined and the Fund has no historical basis for predicting the likelihood of any such claims. FEDERAL TAXES The Fund's policy is to comply with Subchapter M of the Internal Revenue Code that applies to regulated investment companies and to distribute substantially all of its taxable income to shareholders. No provision for income or excise taxes is thus required. Financial Accounting Standards Board (FASB) Interpretation 48 (FIN 48), "Accounting for Uncertainty in Income Taxes," clarifies the accounting for uncertainty in income taxes recognized in accordance with FASB Statement 109, "Accounting for Income Taxes." FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. Management of the Fund has concluded that there are no significant uncertain tax positions that would require recognition in the financial statements. Generally, the tax authorities can examine all the tax returns filed for the last three years. Net investment income (loss) and net realized gains (losses) may differ for financial statement and tax purposes primarily because of futures contracts, investments in partnerships and losses deferred due to wash sales. The character of distributions made during the year from net investment income or net realized gains may differ from their ultimate characterization for federal income tax purposes. Also, due to the timing of dividend distributions, the fiscal year in which amounts are distributed may differ from the year that the income or realized gains (losses) were recorded by the Fund. RECENT ACCOUNTING PRONOUNCEMENTS The Fund has adopted FASB Staff Position No. 133-1 and FIN No. 45-4 (FSP FAS 133-1 and FIN 45-4), "Disclosures about Credit Derivatives and Certain Guarantees: An Amendment of FASB Statement No. 133 and FASB Interpretation No. 45". The amendments to FSP FAS 133-1 and FIN 45-4 require - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 39 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- enhanced disclosures about a fund's derivative and guarantees. Funds are required to provide enhanced disclosures about (a) how and why a fund uses derivative instruments, (b) how derivative instruments and related hedged items are accounted for under SFAS 133 and its related interpretations, (c) how derivative instruments and related hedged items affect a fund's financial position, financial performance, and cash flows and (d) the current status of the payment/ performance risk of the credit derivative. The amendments to FSP FAS 133-1 and FIN 45-4 also require additional disclosures about the current status of the payment/performance risk of a guarantee. At Dec. 31, 2008, the Fund did not own nor was it a party to any credit derivative contracts within the scope of these amendments. In March 2008, the FASB issued Statement of Financial Accounting Standards No. 161 (SFAS 161), "Disclosures about Derivative Instruments and Hedging Activities -- an amendment of FASB Statement No. 133," which requires enhanced disclosures about a fund's derivative and hedging activities. SFAS 161 is effective for financial statements issued for fiscal years and interim periods beginning after Nov. 15, 2008. As of Dec. 31, 2008, management does not believe the adoption of SFAS 161 will impact the financial statement amounts; however, additional footnote disclosures may be required about the use of derivative instruments and hedging items. DIVIDENDS TO SHAREHOLDERS Dividends from net investment income, declared and paid each calendar quarter, when available, are reinvested in additional shares of the Fund at net asset value or payable in cash. Capital gains, when available, are distributed along with the last income dividend of the calendar year. OTHER Security transactions are accounted for on the date securities are purchased or sold. Dividend income is recognized on the ex-dividend date and interest income, including amortization of premium, market discount and original issue discount using the effective interest method, is accrued daily. 2. EXPENSES AND SALES CHARGES INVESTMENT MANAGEMENT SERVICES FEES Under an Investment Management Services Agreement, the Investment Manager determines which securities will be purchased, held or sold. The management fee is a percentage of the Fund's average daily net assets that declines from 0.61% to 0.375% annually as the Fund's assets increase. The fee may be adjusted upward or downward by a performance incentive adjustment determined monthly by measuring the percentage difference over a rolling 12-month period between the - -------------------------------------------------------------------------------- 40 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- annualized performance of one Class A share of the Fund and the annualized performance of the Lipper Equity Income Funds Index. In certain circumstances, the Board may approve a change in the index. The maximum adjustment is 0.12% per year. If the performance difference is less than 0.50%, the adjustment will be zero. The adjustment decreased the management fee by $338,479 for the six months ended Dec. 31, 2008. The management fee for the six months ended Dec. 31, 2008 was 0.54% of the Fund's average daily net assets, including the adjustment under the terms of the performance incentive arrangement. ADMINISTRATIVE SERVICES FEES Under an Administrative Services Agreement, the Fund pays Ameriprise Financial a fee for administration and accounting services at a percentage of the Fund's average daily net assets that declines from 0.06% to 0.03% annually as the Fund's assets increase. The fee for the six months ended Dec. 31, 2008 was 0.06% of the Fund's average daily net assets. OTHER FEES Other expenses are for, among other things, certain expenses of the Fund or the Board including: Fund boardroom and office expense, employee compensation, employee health and retirement benefits, and certain other expenses. Payment of these Fund and Board expenses is facilitated by a company providing limited administrative services to the Fund and the Board. For the six months ended Dec. 31, 2008, other expenses paid to this company were $4,106. COMPENSATION OF BOARD MEMBERS Under a Deferred Compensation Plan (the Plan), non-interested board members may defer receipt of their compensation. Deferred amounts are treated as though equivalent dollar amounts had been invested in shares of the Fund or other RiverSource funds. The Fund's liability for these amounts is adjusted for market value changes and remains in the Fund until distributed in accordance with the Plan. TRANSFER AGENCY FEES Under a Transfer Agency Agreement, RiverSource Service Corporation (the Transfer Agent) maintains shareholder accounts and records. The Fund pays the Transfer Agent an annual account-based fee at a rate equal to $19.50 for Class A, $20.50 for Class B and $20.00 for Class C for this service The Fund also pays the Transfer Agent an annual asset-based fee at a rate of 0.05% of the Fund's average daily net assets attributable to Class R2, Class R3, Class R4 and Class R5 shares and an annual asset-based fee at a rate of 0.20% of the Fund's average daily net assets attributable to Class W shares. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 41 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- The Transfer Agent charges an annual fee of $5 per inactive account, charged on a pro rata basis for 12 months from the date the account becomes inactive. These fees are included in the transfer agency fees on the Statement of Operations. PLAN ADMINISTRATION SERVICES FEES Under a Plan Administration Services Agreement with the Transfer Agent, the Fund pays an annual fee at a rate of 0.25% of the Fund's average daily net assets attributable to Class R2, Class R3 and Class R4 shares for the provision of various administrative, recordkeeping, communication and educational services. DISTRIBUTION FEES The Fund has agreements with RiverSource Distributors, Inc. and RiverSource Fund Distributors, Inc. (collectively, the Distributor) for distribution and shareholder services. Under a Plan and Agreement of Distribution pursuant to Rule 12b-1, the Fund pays a fee at an annual rate of up to 0.25% of the Fund's average daily net assets attributable to Class A, Class R3 and Class W shares, a fee at an annual rate of up to 0.50% of the Fund's average daily net assets attributable to Class R2 shares and a fee at an annual rate of up to 1.00% of the Fund's average daily net assets attributable to Class B and Class C shares. For Class B and Class C shares, up to 0.75% of the fee is reimbursed for distribution expenses. The amount of distribution expenses incurred by the Distributor and not yet reimbursed ("unreimbursed expense") was approximately $3,575,000 and $130,000 for Class B and Class C shares, respectively. These amounts are based on the most recent information available as of Oct. 31, 2008, and may be recovered from future payments under the distribution plan or CDSC. To the extent the unreimbursed expense has been fully recovered, the distribution fee is reduced. SALES CHARGES Sales charges received by the Distributor for distributing Fund shares were $300,839 for Class A, $48,699 for Class B and $2,844 for Class C for the six months ended Dec. 31, 2008. EXPENSES WAIVED/REIMBURSED BY THE INVESTMENT MANAGER AND ITS AFFILIATES For the six months ended Dec. 31, 2008, the Investment Manager and its affiliates waived/reimbursed certain fees and expenses such that net expenses - -------------------------------------------------------------------------------- 42 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- (excluding fees and expenses of acquired funds*), including the adjustment under the terms of a performance incentive arrangement, were as follows: <Table> Class A............................................. 1.01% Class B............................................. 1.76 Class C............................................. 1.76 Class R2............................................ 1.27 Class R3............................................ 1.01 Class R4............................................ 0.66 Class R5............................................ 0.71 </Table> The waived/reimbursed fees and expenses for the transfer agency fees at the class level were as follows: <Table> Class A.......................................... $405,244 Class B.......................................... 48,954 Class C.......................................... 7,022 Class R4......................................... 127 </Table> The waived/reimbursed fees and expenses for the plan administration services fees at the class level were as follows: <Table> Class R2........................................... $ 4 Class R3........................................... 4 Class R4........................................... 907 </Table> The Investment Manager and its affiliates have contractually agreed to waive certain fees and expenses until June 30, 2009, unless sooner terminated at the discretion of the Board, such that net expenses (excluding fees and expenses of acquired funds*), before giving effect to any performance incentive adjustment, will not exceed the following percentage of the Fund's average daily net assets: <Table> Class A............................................. 1.06% Class B............................................. 1.82 Class C............................................. 1.82 Class I............................................. 0.70 Class R2............................................ 1.50 Class R3............................................ 1.25 Class R4............................................ 0.96 Class R5............................................ 0.75 Class W............................................. 1.15 </Table> * In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the funds in which it invests (also referred to as "acquired funds"), including affiliated and non-affiliated pooled investment vehicles (including mutual funds and exchange traded funds). Because the acquired funds have varied expense and fee levels and the Fund may own different proportions of acquired funds at different times, the amount of fees and expenses incurred indirectly by the Fund will vary. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 43 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- EARNINGS AND BANK FEE CREDITS During the six months ended Dec. 31, 2008, the Fund's transfer agency fees were reduced by $7,027 as a result of bank fee credits from overnight cash balances. CUSTODIAN FEES Effective Dec. 15, 2008, the fund pays custodian fees to JPMorgan Chase Bank, N.A. Prior to Dec. 15, 2008, the Fund paid custodian fees to Ameriprise Trust Company, a subsidiary of Ameriprise Financial. 3. SECURITIES TRANSACTIONS Cost of purchases and proceeds from sales of securities (other than short-term obligations) aggregated $182,240,664 and $267,560,887 respectively, for the six months ended Dec. 31, 2008. Realized gains and losses are determined on an identified cost basis. Income from securities lending amounted to $125,039 for the six months ended Dec. 31, 2008. Expenses paid to the Investment Manager as securities lending agent were $8,337 for the six months ended Dec. 31, 2008, which are included in other expenses on the Statement of Operations. The risks to the Fund of securities lending are that the borrower may not provide additional collateral when required or return the securities when due. Effective Dec. 15, 2008, JPMorgan Chase, N.A. will serve as the securities lending agent for the Fund. At Dec. 31, 2008, the Fund had no securities out on loan. 4. CAPITAL SHARE TRANSACTIONS Transactions in shares of capital stock for the periods indicated are as follows: <Table> <Caption> SIX MONTHS ENDED DEC. 31, 2008 ISSUED FOR REINVESTED NET SOLD DISTRIBUTIONS REDEEMED INCREASE (DECREASE) - ---------------------------------------------------------------------------------- Class A 25,215,399 3,109,262 (31,615,163) (3,290,502) Class B 1,822,690 307,354 (7,374,395) (5,244,351) Class C 408,622 43,828 (687,698) (235,248) Class I 6,680,146 585,179 (4,039,512) 3,225,813 Class R2* 653 -- -- 653 Class R3* 653 -- -- 653 Class R4 5,462 2,611 (22,499) (14,426) Class R5* 653 -- -- 653 - ---------------------------------------------------------------------------------- </Table> - -------------------------------------------------------------------------------- 44 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- <Table> <Caption> YEAR ENDED JUNE 30, 2008 ISSUED FOR REINVESTED NET SOLD DISTRIBUTIONS REDEEMED INCREASE (DECREASE) - ---------------------------------------------------------------------------------- Class A 36,055,477 4,660,694 (40,059,510) 656,661 Class B 3,418,567 533,508 (13,264,038) (9,311,963) Class C 748,301 61,937 (720,206) 90,032 Class I 5,941,045 935,656 (6,461,387) 415,314 Class R4 34,110 4,320 (61,365) (22,935) - ---------------------------------------------------------------------------------- </Table> * For the period from Aug. 1, 2008 (inception date) to Dec. 31, 2008. 5. AFFILIATED MONEY MARKET FUND The Fund may invest its daily cash balance in RiverSource Short-Term Cash Fund, a money market fund established for the exclusive use of the RiverSource funds and other institutional clients of RiverSource Investments. The cost of the Fund's purchases and proceeds from sales of shares of the RiverSource Short-Term Cash Fund aggregated $279,972,720 and $286,683,247, respectively, for the six months ended Dec. 31, 2008. The income distributions received with respect to the Fund's investment in RiverSource Short-Term Cash Fund can be found on the Statement of Operations and the Fund's invested balance in RiverSource Short- Term Cash Fund at Dec. 31, 2008, can be found in the Portfolio of Investments. 6. BANK BORROWINGS The Fund has entered into a revolving credit facility with a syndicate of banks led by JPMorgan Chase Bank, N.A. (the Administrative Agent), whereby the Fund may borrow for the temporary funding of shareholder redemptions or for other temporary or emergency purposes. The credit facility became effective on Oct. 16, 2008, replacing a prior credit facility. The credit facility agreement, which is a collective agreement between the Fund and certain other RiverSource funds, severally and not jointly, permits collective borrowings up to $475 million. The borrowers shall have the right, upon written notice to the Administrative Agent to request an increase of up to $175 million in the aggregate amount of the credit facility from new or existing lenders, provided that the aggregate amount of the credit facility shall at no time exceed $650 million. Participation in such increase by any existing lender shall be at such lender's sole discretion. Interest is charged to each Fund based on its borrowings at a rate equal to the federal funds rate plus 0.75%. Each borrowing under the credit facility matures no later than 60 days after the date of borrowing. The Fund also pays a - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 45 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- commitment fee equal to its pro rata share of the amount of the credit facility at a rate of 0.06% per annum, in addition to an upfront fee equal to its pro rata share of 0.02% of the amount of the credit facility. The Fund had no borrowings during the six months ended Dec. 31, 2008. Under the prior credit facility which was effective until Oct. 15, 2008, the Fund had entered into a revolving credit facility with a syndicate of banks headed by JPMorgan Chase Bank, N.A., whereby the Fund was permitted to borrow for the temporary funding of shareholder redemptions or for other temporary or emergency purposes. The credit facility agreement, which was a collective agreement between the Fund and certain other RiverSource funds, severally and not jointly, permitted collective borrowings up to $500 million. Interest was charged to each Fund based on its borrowings at a rate equal to the federal funds rate plus 0.30%. Each borrowing under the credit facility matured no later than 60 days after the date of borrowing. The Fund also paid a commitment fee equal to its pro rata share of the amount of the credit facility at a rate of 0.06% per annum. 7. CAPITAL LOSS CARRY-OVER For federal income tax purposes, the Fund had a capital loss carry-over of $343,927,468 at June 30, 2008, that if not offset by capital gains will expire in 2011. It is unlikely the Board will authorize a distribution of any net realized capital gains until the available capital loss carry-over has been offset or expires. 8. INFORMATION REGARDING PENDING AND SETTLED LEGAL PROCEEDINGS In June 2004, an action captioned John E. Gallus et al. v. American Express Financial Corp. and American Express Financial Advisors Inc., was filed in the United States District Court for the District of Arizona. The plaintiffs allege that they are investors in several American Express Company mutual funds and they purport to bring the action derivatively on behalf of those funds under the Investment Company Act of 1940. The plaintiffs allege that fees allegedly paid to the defendants by the funds for investment advisory and administrative services are excessive. The plaintiffs seek remedies including restitution and rescission of investment advisory and distribution agreements. The plaintiffs voluntarily agreed to transfer this case to the United States District Court for the District of Minnesota. In response to defendants' motion to dismiss the complaint, the Court dismissed one of plaintiffs' four claims and granted plaintiffs limited discovery. Defendants moved for summary judgment in April 2007. Summary judgment was - -------------------------------------------------------------------------------- 46 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- granted in the defendants' favor on July 9, 2007. The plaintiffs filed a notice of appeal with the Eighth Circuit Court of Appeals on August 8, 2007. In December 2005, without admitting or denying the allegations, American Express Financial Corporation (AEFC, which is now known as Ameriprise Financial, Inc. (Ameriprise Financial)), entered into settlement agreements with the Securities and Exchange Commission (SEC) and Minnesota Department of Commerce (MDOC) related to market timing activities. As a result, AEFC was censured and ordered to cease and desist from committing or causing any violations of certain provisions of the Investment Advisers Act of 1940, the Investment Company Act of 1940, and various Minnesota laws. AEFC agreed to pay disgorgement of $10 million and civil money penalties of $7 million. AEFC also agreed to retain an independent distribution consultant to assist in developing a plan for distribution of all disgorgement and civil penalties ordered by the SEC in accordance with various undertakings detailed at http://www.sec.gov/litigation/admin/ia-2451.pdf. Ameriprise Financial and its affiliates have cooperated with the SEC and the MDOC in these legal proceedings, and have made regular reports to the RiverSource Funds' Boards of Directors/Trustees. On November 7, 2008, RiverSource Investments, LLC, a subsidiary of Ameriprise Financial, Inc., acquired J. & W. Seligman & Co., Inc. (Seligman). In late 2003, Seligman conducted an extensive internal review concerning mutual fund trading practices. Seligman's review, which covered the period 2001-2003, noted one arrangement that permitted frequent trading in certain open-end registered investment companies managed by Seligman (the Seligman Funds); this arrangement was in the process of being closed down by Seligman before September 2003. Seligman identified three other arrangements that permitted frequent trading, all of which had been terminated by September 2002. In January 2004, Seligman, on a voluntary basis, publicly disclosed these four arrangements to its clients and to shareholders of the Seligman Funds. Seligman also provided information concerning mutual fund trading practices to the SEC and the Office of the Attorney General of the State of New York (NYAG). In September 2005, the New York staff of the SEC indicated that it was considering recommending to the Commissioners of the SEC the instituting of a formal action against Seligman and the distributor of the Seligman Funds, Seligman Advisors, Inc., relating to frequent trading in the Seligman Funds. Seligman responded to the staff in October 2005 that it believed that any action would be both inappropriate and unnecessary, especially in light of the fact that Seligman had previously resolved the underlying issue with the Independent Directors of the Seligman Funds and made recompense to the affected Seligman Funds. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 47 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- In September 2006, the NYAG commenced a civil action in New York State Supreme Court against Seligman, Seligman Advisors, Inc., Seligman Data Corp. (transfer agent for the Seligman Funds) and Brian T. Zino (collectively, the Seligman Parties), alleging, in substance, that, in addition to the four arrangements noted above, the Seligman Parties permitted other persons to engage in frequent trading and, as a result, the prospectus disclosure used by the registered investment companies managed by Seligman is and has been misleading. The NYAG included other related claims and also claimed that the fees charged by Seligman to the Seligman Funds were excessive. The NYAG is seeking damages of at least $80 million and restitution, disgorgement, penalties and costs and injunctive relief. The Seligman Parties answered the complaint in December 2006 and believe that the claims are without merit. Any resolution of these matters may include the relief noted above or other sanctions or changes in procedures. Any damages would be paid by Seligman and not by the Seligman Funds. If the NYAG obtains injunctive relief, each of Seligman, RiverSource Investments and their affiliates could, in the absence of the SEC in its discretion granting exemptive relief, be enjoined from providing advisory and underwriting services to the Seligman Funds and other registered investment companies including those funds in the RiverSource complex of funds. Neither Seligman nor RiverSource Investments believes that the foregoing legal action or other possible actions will have a material adverse impact on Seligman, RiverSource Investments or their current or former clients, including the Seligman Funds and other investment companies managed by RiverSource Investments; however, there can be no assurance of this or that these matters and any related publicity will not affect demand for shares of the Seligman Funds and such other investment companies or have other adverse consequences. Ameriprise Financial and certain of its affiliates have historically been involved in a number of legal, arbitration and regulatory proceedings, including routine litigation, class actions, and governmental actions, concerning matters arising in connection with the conduct of their business activities. Ameriprise Financial believes that the Funds are not currently the subject of, and that neither Ameriprise Financial nor any of its affiliates are the subject of, any pending legal, arbitration or regulatory proceedings that are likely to have a material adverse effect on the Funds or the ability of Ameriprise Financial or its affiliates to perform under their contracts with the Funds. Ameriprise Financial is required to make 10-Q, 10-K and, as necessary, 8-K filings with the Securities and Exchange Commission on legal and regulatory matters that relate to Ameriprise Financial and its affiliates. Copies of these filings may be obtained by accessing the SEC website at www.sec.gov. There can be no assurance that these matters, or the adverse publicity associated with them, will not result in increased fund redemptions, reduced sale of fund - -------------------------------------------------------------------------------- 48 RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- shares or other adverse consequences to the Funds. Further, although we believe proceedings are not likely to have a material adverse effect on the Funds or the ability of Ameriprise Financial or its affiliates to perform under their contracts with the Funds, these proceedings are subject to uncertainties and, as such, we are unable to estimate the possible loss or range of loss that may result. An adverse outcome in one or more of these proceedings could result in adverse judgments, settlements, fines, penalties or other relief that could have a material adverse effect on the consolidated financial condition or results of operations of Ameriprise Financial. PROXY VOTING ------------------------------------------------------------------- The policy of the Board is to vote the proxies of the companies in which the Fund holds investments consistent with the procedures as stated in the Statement of Additional Information (SAI). You may obtain a copy of the SAI without charge by calling RiverSource Funds at (888) 791-3380; contacting your financial institution; visiting riversource.com/funds; or searching the website of the Securities and Exchange Commission (SEC) at http://www.sec.gov. Information regarding how the Fund voted proxies relating to portfolio securities is filed with the SEC by August 31 for the most recent 12-month period ending June 30 of that year, and is available without charge by visiting riversource.com/funds; or searching the website of the SEC at www.sec.gov. - -------------------------------------------------------------------------------- RIVERSOURCE DIVIDEND OPPORTUNITY FUND -- 2008 SEMIANNUAL REPORT 49 RIVERSOURCE DIVIDEND OPPORTUNITY FUND 734 Ameriprise Financial Center Minneapolis, MN 55474 RIVERSOURCE.COM/FUNDS <Table> This report must be accompanied or preceded by the Fund's current prospectus. RiverSource(R) mutual funds are distributed by RiverSource Distributors, Inc., and RiverSource Fund Distributors, Inc., Members FINRA, and managed by RiverSource Investments, LLC. RiverSource is part of Ameriprise Financial, Inc. (RIVERSOURCE INVESTMENTS LOGO) (C) 2009 RiverSource Investments, LLC. S-6342 Y (2/09) </Table> Semiannual Report (RIVERSOURCE INVESTMENTS LOGO) RIVERSOURCE REAL ESTATE FUND SEMIANNUAL REPORT FOR THE PERIOD ENDED DECEMBER 31, 2008 RIVERSOURCE REAL ESTATE FUND SEEKS TO PROVIDE SHAREHOLDERS WITH TOTAL RETURN FROM BOTH CURRENT INCOME AND CAPITAL APPRECIATION. (SINGLE STRATEGY FUNDS ICON) TABLE OF CONTENTS -------------------------------------------------------------- <Table> Your Fund at a Glance.............. 3 Manager Commentary................. 6 Fund Expenses Example.............. 13 Portfolio of Investments........... 15 Statement of Assets and Liabilities...................... 18 Statement of Operations............ 19 Statements of Changes in Net Assets........................... 20 Financial Highlights............... 22 Notes to Financial Statements...... 28 Proxy Voting....................... 41 </Table> (DALBAR LOGO) The RiverSource mutual fund shareholder reports have been awarded the Communications Seal from Dalbar Inc., an independent financial services research firm. The Seal recognizes communications demonstrating a level of excellence in the industry. - -------------------------------------------------------------------------------- 2 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT YOUR FUND AT A GLANCE ---------------------------------------------------------- (UNAUDITED) FUND SUMMARY - -------------------------------------------------------------------------------- > RiverSource Real Estate Fund (the Fund) Class A shares declined 36.82% (excluding sales charge) for the six months ended Dec. 31, 2008. > The Fund outperformed its benchmark, the Dow Jones Wilshire Real Estate Securities Index (Float-Weighted), which fell 37.71% during the same time period. > The Lipper Real Estate Funds Index, representing the Fund's peer group, decreased 37.58% during the same time frame. ANNUALIZED TOTAL RETURNS (for period ended Dec. 31, 2008) - -------------------------------------------------------------------------------- <Table> <Caption> Since inception 6 months* 1 year 3 years 3/14/04 - --------------------------------------------------------------------- RiverSource Real Estate Fund Class A (excluding sales charge) -36.82% -39.39% -11.90% -0.42% - --------------------------------------------------------------------- Dow Jones Wilshire Real Estate Securities Index (Float-Weighted) (unmanaged)(1) -37.71% -39.83% -12.40% -1.12% - --------------------------------------------------------------------- Lipper Real Estate Funds Index(2) -37.58% -39.17% -11.56% -1.20% - --------------------------------------------------------------------- </Table> * Not annualized. The performance information shown represents past performance and is not a guarantee of future results. The investment return and principal value of your investment will fluctuate so that your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance information shown. You may obtain performance information current to the most recent month-end by contacting your financial institution or visiting riversource.com/funds. The 5.75% sales charge applicable to Class A shares of the Fund is not reflected in the table above. If reflected, returns would be lower than those shown. The performance of other classes may vary from that shown because of differences in expenses. See the Average Annual Total Returns table for performance of other share classes of the Fund. The indices do not reflect the effects of sales charges, expenses (excluding Lipper) and taxes. It is not possible to invest directly in an index. (1) The Dow Jones Wilshire Real Estate Securities Index (Float-Weighted), an unmanaged float-weighted index, measures the performance of publicly traded real estate securities, including REITs and real estate operating companies. The index reflects reinvestment of all distributions and changes in market prices. (2) The Lipper Real Estate Funds Index includes the 30 largest real estate funds tracked by Lipper Inc. The index's returns include net reinvested dividends. The Fund's performance is currently measured against this index for purposes of determining the performance incentive adjustment. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 3 YOUR FUND AT A GLANCE (continued) ---------------------------------------------- STYLE MATRIX - -------------------------------------------------------------------------------- <Table> <Caption> STYLE VALUE BLEND GROWTH X LARGE X MEDIUM SIZE X SMALL </Table> Shading within the style matrix indicates areas in which the Fund is designed to generally invest. The style matrix can be a valuable tool for constructing and monitoring your portfolio. It provides a frame of reference for distinguishing the types of stocks or bonds owned by a mutual fund, and may serve as a guideline for helping you build a portfolio. Investment products, including shares of mutual funds, are not federally or FDIC-insured, are not deposits or obligations of, or guaranteed by any financial institution, and involve investment risks including possible loss of principal and fluctuation in value. ANNUAL OPERATING EXPENSE RATIO (as of the current prospectus) - -------------------------------------------------------------------------------- <Table> <Caption> Total fund Net fund expenses expenses(a) - ----------------------------------------- Class A 1.45% 1.37% - ----------------------------------------- Class B 2.21% 2.14% - ----------------------------------------- Class C 2.21% 2.13% - ----------------------------------------- Class I 0.91% 0.91% - ----------------------------------------- Class R4 1.21% 1.21% - ----------------------------------------- Class W 1.35% 1.35% - ----------------------------------------- </Table> (a) The Investment Manager and its affiliates have contractually agreed to waive certain fees and to absorb certain expenses until June 30, 2009, unless sooner terminated at the discretion of the Fund's Board. Any amounts waived will not be reimbursed by the Fund. Under this agreement, net fund expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment (that decreased the fee by 0.09% for the year ended June 30, 2008), will not exceed 1.46% for Class A, 2.23% for Class B, 2.22% for Class C, 1.01% for Class I, 1.31% for Class R4 and 1.46% for Class W. The RiverSource Real Estate Fund is a narrowly-focused sector fund and it may exhibit higher volatility than funds with broader investment objectives. Principal risks associated with the Fund include market risk, issuer risk, diversification risk and sector/concentration risk. See the Fund's prospectus for information on these and other risks associated with the Fund. Investments in small- and mid-capitalization companies involve greater risks and volatility than investments in larger, more established companies. - -------------------------------------------------------------------------------- 4 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- AVERAGE ANNUAL TOTAL RETURNS - -------------------------------------------------------------------------------- <Table> <Caption> AT DEC. 31, 2008 SINCE Without sales charge 6 MONTHS* 1 YEAR 3 YEARS INCEPTION Class A (inception 3/4/04) -36.82% -39.39% -11.90% -0.42% - ----------------------------------------------------------------------- Class B (inception 3/4/04) -37.14% -39.89% -12.58% -1.21% - ----------------------------------------------------------------------- Class C (inception 3/4/04) -37.16% -39.94% -12.59% -1.21% - ----------------------------------------------------------------------- Class I (inception 3/4/04) -36.76% -39.20% -11.52% -0.04% - ----------------------------------------------------------------------- Class R4 (inception 3/4/04) -36.73% -39.10% -11.58% -0.14% - ----------------------------------------------------------------------- Class W (inception 12/1/06) -36.89% -39.44% N/A -28.44% - ----------------------------------------------------------------------- With sales charge Class A (inception 3/4/04) -40.47% -42.85% -13.63% -1.63% - ----------------------------------------------------------------------- Class B (inception 3/4/04) -40.24% -42.83% -13.52% -1.50% - ----------------------------------------------------------------------- Class C (inception 3/4/04) -37.78% -40.53% -12.59% -1.21% - ----------------------------------------------------------------------- </Table> Class A share performance reflects the maximum sales charge of 5.75%. Class B share performance reflects a contingent deferred sales charge (CDSC) applied as follows: first year 5%; second and third years 4%; fourth year 3%; fifth year 2%; sixth year 1%; no sales charge thereafter. Class C shares may be subject to a 1% CDSC if shares are sold within one year after purchase. Sales charges do not apply to Class I, Class R4 and Class W shares. Class I and Class R4 are available to institutional investors only. Class W shares are offered through qualifying discretionary accounts. *Not annualized. The performance information shown represents past performance and is not a guarantee of future results. The investment return and principal value of your investment will fluctuate so that your shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance information shown. You may obtain performance information current to the most recent month-end by contacting your financial institution or visiting riversource.com/funds. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 5 MANAGER COMMENTARY ------------------------------------------------------------- (UNAUDITED) At Dec. 31, 2008, approximately 56% of the Fund's total outstanding shares were owned in aggregate by affiliated funds-of-funds managed by RiverSource Investments, LLC (RiverSource). As a result of asset allocation decisions by RiverSource, it is possible RiverSource Real Estate Fund may experience relatively large purchases or redemptions from affiliated funds-of-funds (see page 37, Class I capital share transactions, for related activity during the most recent fiscal period). RiverSource seeks to minimize the impact of these transactions by structuring them over a reasonable period of time. RiverSource Real Estate Fund may experience increased expenses as it buys and sells securities to manage transactions for affiliated funds-of-funds. For more information on the Fund's expenses, see the discussions beginning on pages 13 and 33. Dear Shareholders, RiverSource Real Estate Fund (the Fund) Class A shares declined 36.82% (excluding sales charge) for the six months ended Dec. 31, 2008. The Fund outperformed its benchmark, the Dow Jones Wilshire Real Estate Securities Index (Float-Weighted) (Wilshire Index), which fell 37.71% during the same time period. The Lipper Real Estate Funds Index, representing the Fund's peer group, decreased 37.58% during the same time frame. SECTOR DIVERSIFICATION (at Dec. 31, 2008; % of portfolio assets) - --------------------------------------------------------------------- <Table> Apartments 17.7% - ------------------------------------------------ Diversified Properties 10.1% - ------------------------------------------------ Health Care 12.3% - ------------------------------------------------ Hotels 4.1% - ------------------------------------------------ Industrial 3.9% - ------------------------------------------------ Manufactured Homes 1.3% - ------------------------------------------------ Office Property 19.4% - ------------------------------------------------ Regional Malls 10.2% - ------------------------------------------------ Shopping Centers 11.8% - ------------------------------------------------ Storage 7.1% - ------------------------------------------------ Other(1) 2.1% - ------------------------------------------------ </Table> (1) Cash & Cash Equivalents. - -------------------------------------------------------------------------------- 6 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- SIGNIFICANT PERFORMANCE FACTORS It would be an understatement to say that the semiannual period ended Dec. 31, 2008 was one of unprecedented volatility in the equity market in general and in the real estate market in particular. The first half of the period actually started off well for real estate investments, with the Wilshire Index generating positive returns and significantly outpacing the broader equity market from July through September. However, from mid-September through mid-November, the credit markets were suddenly frozen. This led investors to become concerned that most companies, including real estate investment trusts (REITs) and real estate companies, would not have access to credit at any price. As a result, real estate investments declined precipitously. It was in mid-September that the financial turmoil culminated with the bankruptcy of Lehman Brothers. At that point, all investments with leverage (debt) were shunned. Because REITs typically use approximately 50% leverage, the fear was that REITs would go bankrupt, too. Those REITs with the highest leverage were punished the most severely; those with lower leverage, less so. The volatility in REITs and other real estate companies came despite a rather steady decline in the 10-year Treasury yield, which fell from 3.99% on June 30, 2008 to just 2.25% on Dec. 31, 2008. While interest rates TOP TEN HOLDINGS (at Dec. 31, 2008; % of portfolio assets) - --------------------------------------------------------------------- <Table> Simon Property Group* 7.5% - ------------------------------------------------ Vornado Realty Trust* 5.8% - ------------------------------------------------ Public Storage* 5.2% - ------------------------------------------------ Boston Properties* 4.5% - ------------------------------------------------ AvalonBay Communities* 4.2% - ------------------------------------------------ HCP* 4.1% - ------------------------------------------------ Ventas* 4.0% - ------------------------------------------------ Federal Realty Investment Trust* 4.0% - ------------------------------------------------ Regency Centers* 3.6% - ------------------------------------------------ Equity Residential* 3.6% - ------------------------------------------------ </Table> * Real Estate Investment Trust Fund holdings are as of the date given, are subject to change at any time, and are not recommendations to buy or sell any security. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 7 MANAGER COMMENTARY (continued) ------------------------------------------------- moved lower, the credit crisis caused yield spreads on commercial mortgage- backed securities (CMBS) to increase to historically high levels. (Spread is the difference in yields between CMBS and Treasuries.) A major source of debt financing for REITs had been CMBS and unsecured debt. The almost complete lack of debt financing moved the focus from the REITs' income statements to their balance sheets. While REITs saw some deterioration in operating trends, for the most part their income remained solid. However, the new focus on balance sheets raised liquidity concerns for any REIT that had debt maturing within two years, even if that debt could be easily refinanced under normal circumstances. The tight credit markets and focus on balance sheets caused REITs in general to make significant changes to adapt to this new environment. For example, REITs sought to preserve cash by shutting down new development, limiting capital expenditures, reducing operating expenses and cutting their dividends in some cases. Indeed, more than 30 REITs cut their dividends during the semiannual period. Economic conditions also led to a near standstill in property transactions, as buyers and sellers had a difficult time agreeing on price with the cost of capital so uncertain. It is important to note that while underlying real estate fundamentals softened in select subsectors, they remained relatively strong in others. Hotels, for example, struggled due to the inherent nature of their short-term (nightly) leases, oversupply and declining demand. Retail and industrial properties also performed poorly, as consumer spending turned down sharply and factory orders dropped. Offices, on the other hand, held up fairly well, given the multi-year, long-term leases they enjoy. Health care properties, self-storage properties and apartments fared even better. Health care properties proved to be a rather defensive area due to being tied to the economy less than other segments of the real estate market. Self-storage did well, as homeowners downsized. Apartments benefited from the declining rate in homeownership and the fact that Fannie Mae and Freddie Mac continued to provide financing for apartments and senior housing developments through its affordable housing mandate. Also, importantly, even with several REITs cutting their dividends during the period, dividend yields for most REITs continued to grow by virtue of both the actual dividend amount going up and as a percentage of share prices, which generally declined. - -------------------------------------------------------------------------------- 8 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- Against this challenging backdrop and the losses experienced by the Fund, it may be small solace that the Fund outperformed the Wilshire Index for the six months ended Dec. 31, 2008. It is also a testament to the Fund's emphasis on both risk management and investment opportunity. It also indicates that even in a broad sector decline, subsector allocation and individual stock selection decisions can help. The Fund's results relative to the Wilshire Index benefited most during the semiannual period by having comparatively modest exposure to the weakly- performing community shopping center and regional mall REIT subsectors. Stock selection within these two REIT subsectors as well as in the manufactured homes REIT subsector also helped. From an individual stock perspective, a significant position in FEDERAL REALTY INVESTMENT TRUST, whose shares declined yet materially outperformed the Wilshire Index, was a strong contributor. Federal Realty Investment Trust primarily owns, manages, develops and redevelops retail and mixed-use properties in the Washington, D.C. area. Prudent timing in trades of GENERAL GROWTH PROPERTIES, which primarily operates, develops and manages shopping centers, and DUKE REALTY, which is a suburban office and industrial property REIT, also boosted the Fund's relative results. Detracting from the Fund's performance most was stock selection in the industrial and hotel REIT subsectors. The Fund had a sizable position in the poorly-performing hotel REIT subsector and had only a modest allocation to the better-performing health care REIT subsector. From an individual stock perspective, poor timing in trades of industrial REIT PROLOGIS detracted from the Fund's results. A sizable position in BROOKFIELD PROPERTIES also hurt, as this office company underperformed during the period. Having only a modest holding in PUBLIC STORAGE detracted, as this self-storage REIT was one of the very few REITs whose shares actually generated a positive return during the period. Similarly, not owning a position in HEALTH CARE REIT, whose investments include skilled nursing facilities, independent living, continuing care retirement communities, assisted living facilities, and specialty care facilities, detracted from the Fund's results. Health Care REIT's shares declined only modestly during the period, significantly outperforming the Wilshire Index. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 9 MANAGER COMMENTARY (continued) ------------------------------------------------- CHANGES TO THE FUND'S PORTFOLIO Given extreme weakness in the real estate market, extraordinarily tight credit conditions and heightened investor fears regarding the potential direction of the economy, we continued to seek to upgrade the quality of the portfolio overall. We eliminated holdings with higher leverage and reduced positions where we felt discomfort based on stock-specific or event-specific concerns. We increased holdings in what we believe are higher quality companies with strong balance sheets, low leverage, superior management teams and a sustainable competitive advantage. We also, of course, made adjustments based on relative valuation analysis and shifts in market conditions. As a byproduct of our bottom-up individual stock selection decisions, the Fund's exposure to the apartment and health care REIT subsectors increased. As indicated above, several names within these two subsectors benefited from the ongoing availability of Fannie Mae and Freddie Mac financing. The Fund's exposure to the hotel subsector decreased. At the end of the period, the Fund had significant exposure to the apartment and office subsectors and more modest allocations to the health care, hotel, industrial and storage subsectors. As of Dec. 31, 2008, the Fund was virtually equally weighted with the Wilshire Index in the remaining REIT subsectors. OUR FUTURE STRATEGY Looking at the glass half full, we believe that the credit markets will eventually open up and that REITS will be among the prime beneficiaries. Another reason for optimism is that less commercial real estate is being built currently, so when the economic recovery does come and demand revives, having decreased supply should speed up the turnaround for the real estate sector. Further, for those REITs that are underleveraged, we feel that the recent REIT market correction has created attractive opportunities to buy properties at nearly distressed prices. This opportunity to buy properties at compelling prices is one that we have not seen for many years now. Finally, despite perceptions otherwise, most REITs have been cautious in terms of their levels of leverage compared with private real estate companies. Therefore, we believe most REITs should come out of the current shakeout with fundamentals and balance sheets intact. - -------------------------------------------------------------------------------- 10 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- That said, real estate continued to face significant headwinds at the end of December. Access to capital had not improved. Dividend cuts had become increasingly prevalent with companies seeking to preserve capital. Development projects were being put on hold or cancelled. Fundamentals were deteriorating, as rents declined and vacancies increased. Looking forward in the near term, macroeconomic trends may well also deteriorate further. Unemployment seemed set to increase, and consumer spending was widely anticipated to moderate further. All told, we believe REITs and real estate shares will likely remain under pressure in the months ahead, though the recent correction appears to be setting the stage for buying opportunities. The timing of these opportunities has yet to be seen. As we wait for signs of improvement, we will seek in the coming months to take advantage of stock-specific buying opportunities created by recent market weakness. We intend to look for select real estate companies and REITs where we believe exaggerated valuation declines or a sustainable competitive advantage puts these companies in a position to take advantage of current market conditions. Our goal, as always, will be to use in-depth, bottom-up analysis of fundamentals and market performance to find undervalued companies across the United States that have solid dividend-paying abilities and attractive long-term growth potential. All told, we believe REITs and real estate shares will likely remain under pressure in the months ahead, though the recent correction appears to be setting the stage for buying opportunities. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 11 MANAGER COMMENTARY (continued) ------------------------------------------------- Our focus will be on securities of real estate companies with quality assets, strong balance sheets and, more importantly than ever in our opinion, experienced management teams. Julene Melquist Portfolio Manager Any specific securities mentioned are for illustrative purposes only and are not a complete list of securities that have increased or decreased in value. The views expressed in this statement reflect those of the portfolio manager(s) only through the end of the period of the report as stated on the cover and do not necessarily represent the views of RiverSource Investments, LLC (RiverSource) or any subadviser to the Fund or any other person in the RiverSource or subadviser organizations. Any such views are subject to change at any time based upon market or other conditions and RiverSource disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for a RiverSource fund are based on numerous factors, may not be relied on as an indication of trading intent on behalf of any RiverSource fund. - -------------------------------------------------------------------------------- 12 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT FUND EXPENSES EXAMPLE ---------------------------------------------------------- (UNAUDITED) As a shareholder of the Fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on purchase payments; and (2) ongoing costs, which may include management fees; distribution and service (12b-1) fees; and other Fund fees and expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. In addition to the ongoing expenses which the Fund bears directly, the Fund's shareholders indirectly bear the expenses of the funds in which it invests (also referred to as "acquired funds"), including affiliated and non-affiliated pooled investment vehicles (including mutual funds and exchange traded funds). The Fund's indirect expense from investing in the acquired funds is based on the Fund's pro rata portion of the cumulative expenses charged by the acquired funds using the expense ratio of each of the acquired funds as of the acquired fund's most recent shareholder report. The example is based on an investment of $1,000 invested at the beginning of the period and held for the six months ended Dec. 31, 2008. ACTUAL EXPENSES The first line of the table provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading titled "Expenses paid during the period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line of the table provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads). Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 13 FUND EXPENSES EXAMPLE (continued) ---------------------------------------------- <Table> <Caption> BEGINNING ENDING EXPENSES ACCOUNT VALUE ACCOUNT VALUE PAID DURING ANNUALIZED JULY 1, 2008 DEC. 31, 2008 THE PERIOD(A) EXPENSE RATIO - ------------------------------------------------------------------------------------------ Class A - ------------------------------------------------------------------------------------------ Actual(b) $1,000 $ 631.80 $ 5.84 1.42% - ------------------------------------------------------------------------------------------ Hypothetical (5% return before expenses) $1,000 $1,018.05 $ 7.22 1.42% - ------------------------------------------------------------------------------------------ Class B - ------------------------------------------------------------------------------------------ Actual(b) $1,000 $ 628.60 $ 8.99 2.19% - ------------------------------------------------------------------------------------------ Hypothetical (5% return before expenses) $1,000 $1,014.17 $11.12 2.19% - ------------------------------------------------------------------------------------------ Class C - ------------------------------------------------------------------------------------------ Actual(b) $1,000 $ 628.40 $ 8.95 2.18% - ------------------------------------------------------------------------------------------ Hypothetical (5% return before expenses) $1,000 $1,014.22 $11.07 2.18% - ------------------------------------------------------------------------------------------ Class I - ------------------------------------------------------------------------------------------ Actual(b) $1,000 $ 632.40 $ 3.99 .97% - ------------------------------------------------------------------------------------------ Hypothetical (5% return before expenses) $1,000 $1,020.32 $ 4.94 .97% - ------------------------------------------------------------------------------------------ Class R4 - ------------------------------------------------------------------------------------------ Actual(b) $1,000 $ 632.70 $ 5.23 1.27% - ------------------------------------------------------------------------------------------ Hypothetical (5% return before expenses) $1,000 $1,018.80 $ 6.46 1.27% - ------------------------------------------------------------------------------------------ Class W - ------------------------------------------------------------------------------------------ Actual(b) $1,000 $ 631.10 $ 5.84 1.42% - ------------------------------------------------------------------------------------------ Hypothetical (5% return before expenses) $1,000 $1,018.05 $ 7.22 1.42% - ------------------------------------------------------------------------------------------ </Table> (a) Expenses are equal to the Fund's annualized expense ratio as indicated above, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). (b) Based on the actual return for the six months ended Dec. 31, 2008: -36.82% for Class A, -37.14% for Class B, -37.16% for Class C, -36.76% for Class I, -36.73% for Class R4 and -36.89% for Class W. - -------------------------------------------------------------------------------- 14 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT PORTFOLIO OF INVESTMENTS ------------------------------------------------------- DEC. 31, 2008 (UNAUDITED) (Percentages represent value of investments compared to net assets) INVESTMENTS IN SECURITIES <Table> <Caption> COMMON STOCKS (97.2%) ISSUER SHARES VALUE(a) HOTELS, RESTAURANTS & LEISURE (0.6%) Starwood Hotels & Resorts Worldwide 46,611 $834,337 - ------------------------------------------------------------------------------------- REAL ESTATE INVESTMENT TRUSTS (REITS) (96.1%) Acadia Realty Trust 107,852 1,539,048 Alexandria Real Estate Equities 61,006 3,681,102 AMB Property 155,979 3,653,028 Apartment Investment & Management Cl A 62,118 717,463 AvalonBay Communities 91,334 5,533,014 Boston Properties 108,680 5,977,400 Brookfield Properties 388,773 3,005,216 Camden Property Trust 116,917 3,664,179 Corporate Office Properties Trust 67,957 2,086,280 Cousins Properties 59,762 827,704 Digital Realty Trust 97,420 3,200,247 Douglas Emmett 111,153 1,451,658 Duke Realty 106,808 1,170,616 EastGroup Properties 41,537 1,477,886 Equity Lifestyle Properties 44,833 1,719,794 Equity One 26,854 475,316 Equity Residential 158,116 4,715,019 Essex Property Trust 46,815 3,593,051 Extra Space Storage 90,846 937,531 Federal Realty Investment Trust 84,748 5,261,156 General Growth Properties 61,569 76,653 HCP 193,653 5,377,744 Healthcare Realty Trust 95,278 2,237,127 Highwoods Properties 112,257 3,071,352 Home Properties 48,999 1,989,359 Host Hotels & Resorts 461,912 3,496,674 Kilroy Realty 52,705 1,763,509 Kimco Realty 194,939 3,563,485 LaSalle Hotel Properties 94,458 1,043,761 Liberty Property Trust 133,752 3,053,558 Macerich 122,702 2,228,268 Mack-Cali Realty 51,761 1,268,145 Mid-America Apartment Communities 83,403 3,099,255 Public Storage 86,308 6,861,486 Regency Centers 101,047 4,718,895 Senior Housing Properties Trust 180,634 3,236,961 Simon Property Group 186,250 9,895,463 Sovran Self Storage 42,384 1,525,824 Taubman Centers 49,511 1,260,550 Ventas 157,960 5,302,717 Vornado Realty Trust 125,334 7,563,907 --------------- Total 127,321,401 - ------------------------------------------------------------------------------------- REAL ESTATE MANAGEMENT & DEVELOPMENT (0.5%) Forest City Enterprises Cl A 90,249 604,668 - ------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (Cost: $191,810,762) $128,760,406 - ------------------------------------------------------------------------------------- <Caption> MONEY MARKET FUND (2.0%) SHARES VALUE(a) RiverSource Short-Term Cash Fund, 0.48% 2,689,597(b) $2,689,597 - ------------------------------------------------------------------------------------- TOTAL MONEY MARKET FUND (Cost: $2,689,597) $2,689,597 - ------------------------------------------------------------------------------------- TOTAL INVESTMENTS IN SECURITIES (Cost: $194,500,359)(c) $131,450,003 ===================================================================================== </Table> NOTES TO PORTFOLIO OF INVESTMENTS (A) Securities are valued by using procedures described in Note 1 to the financial statements. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 15 PORTFOLIO OF INVESTMENTS (continued) ------------------------------------------- NOTES TO PORTFOLIO OF INVESTMENTS (CONTINUED) (B) Affiliated Money Market Fund -- See Note 5 to the financial statements. The rate shown is the seven-day current annualized yield at Dec. 31, 2008. (C) At Dec. 31, 2008, the cost of securities for federal income tax purposes was approximately $194,500,000 and the approximate aggregate gross unrealized appreciation and depreciation based on that cost was: <Table> Unrealized appreciation $1,759,000 Unrealized depreciation (64,809,000) ----------------------------------------------------------- Net unrealized depreciation $(63,050,000) ----------------------------------------------------------- </Table> The industries identified above are based on the Global Industry Classification Standard (GICS), which was developed by and is the exclusive property of Morgan Stanley Capital International Inc. and Standard & Poor's, a division of The McGraw-Hill Companies, Inc. - -------------------------------------------------------------------------------- 16 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- FAIR VALUE MEASUREMENTS Statement of Financial Accounting Standards No. 157 (SFAS 157) seeks to implement more uniform reporting relating to the fair valuation of securities for financial statement purposes. Mutual funds are required to implement the requirements of this standard for fiscal years beginning after Nov. 15, 2007. While uniformity of presentation is the objective of the standard, industry implementation has just begun and it is likely that there will be a range of practices utilized and it will be some period of time before industry practices become more uniform. For this reason care should be exercised in interpreting this information and/or using it for comparison with other mutual funds. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below: - Level 1 -- quoted prices in active markets for identical securities - Level 2 -- other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risks, etc.) - Level 3 -- significant unobservable inputs (including the Fund's own assumptions in determining the fair value of investments) Observable inputs are those based on market data obtained from sources independent of the fund, and unobservable inputs reflect the fund's own assumptions based on the best information available. The input levels are not necessarily an indication of the risk or liquidity associated with investments at that level. The following table is a summary of the inputs used to value the Fund's investments as of Dec. 31, 2008: <Table> <Caption> FAIR VALUE AT DEC. 31, 2008 ---------------------------------------------------------- LEVEL 1 LEVEL 2 QUOTED PRICES OTHER LEVEL 3 IN ACTIVE SIGNIFICANT SIGNIFICANT MARKETS FOR OBSERVABLE UNOBSERVABLE DESCRIPTION IDENTICAL ASSETS INPUTS INPUTS TOTAL - ----------------------------------------------------------------------------------- Investments in securities $131,450,003 $-- $-- $131,450,003 </Table> HOW TO FIND INFORMATION ABOUT THE FUND'S PORTFOLIO HOLDINGS (I) The Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission (Commission) for the first and third quarters of each fiscal year on Form N-Q; (II) The Fund's Forms N-Q are available on the Commission's website at http://www.sec.gov; (III)The Fund's Forms N-Q may be reviewed and copied at the Commission's Public Reference Room in Washington, DC (information on the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330); and (IV) The Fund's complete schedule of portfolio holdings, as disclosed in its annual and semiannual shareholder reports and in its filings on Form N-Q, can be found at riversource.com/funds. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 17 STATEMENT OF ASSETS AND LIABILITIES -------------------------------------------- DEC. 31, 2008 (UNAUDITED) <Table> <Caption> ASSETS Investments in securities, at value Unaffiliated issuers (identified cost $191,810,762) $128,760,406 Affiliated money market fund (identified cost $2,689,597) 2,689,597 - -------------------------------------------------------------------------------------- Total investments in securities (identified cost $194,500,359) 131,450,003 Cash 87,365 Capital shares receivable 141,587 Dividends receivable 1,234,001 - -------------------------------------------------------------------------------------- Total assets 132,912,956 - -------------------------------------------------------------------------------------- LIABILITIES Capital shares payable 367,452 Accrued investment management services fees 2,914 Accrued distribution fees 23,457 Accrued transfer agency fees 860 Accrued administrative services fees 208 Accrued plan administration services fees 26 Other accrued expenses 64,618 - -------------------------------------------------------------------------------------- Total liabilities 459,535 - -------------------------------------------------------------------------------------- Net assets applicable to outstanding capital stock $132,453,421 - -------------------------------------------------------------------------------------- REPRESENTED BY Capital stock -- $.01 par value $ 187,034 Additional paid-in capital 227,401,065 Undistributed net investment income 2,046,794 Accumulated net realized gain (loss) (34,131,116) Unrealized appreciation (depreciation) on investments (63,050,356) - -------------------------------------------------------------------------------------- Total -- representing net assets applicable to outstanding capital stock $132,453,421 - -------------------------------------------------------------------------------------- </Table> <Table> <Caption> NET ASSET VALUE PER SHARE NET ASSETS SHARES OUTSTANDING NET ASSET VALUE PER SHARE Class A $49,556,673 7,002,350 $7.08(1) Class B $ 7,650,571 1,089,698 $7.02 Class C $ 902,900 128,710 $7.01 Class I $74,274,777 10,472,921 $7.09 Class R4 $ 66,563 9,446 $7.05 Class W $ 1,937 275 $7.04 - ---------------------------------------------------------------------------------------- </Table> (1) The maximum offering price per share for Class A is $7.51. The offering price is calculated by dividing the net asset value by 1.0 minus the maximum sales charge of 5.75%. The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 18 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT STATEMENT OF OPERATIONS -------------------------------------------------------- SIX MONTHS ENDED DEC. 31, 2008 (UNAUDITED) <Table> <Caption> INVESTMENT INCOME Income: Dividends $ 4,999,411 Interest 11 Income distributions from affiliated money market fund 33,525 Less foreign taxes withheld (25,859) - -------------------------------------------------------------------------- Total income 5,007,088 - -------------------------------------------------------------------------- Expenses: Investment management services fees 724,482 Distribution fees Class A 89,380 Class B 54,005 Class C 5,856 Class W 3 Transfer agency fees Class A 142,024 Class B 22,794 Class C 2,411 Class R4 23 Class W 3 Administrative services fees 54,052 Plan administration services fees -- Class R4 114 Compensation of board members 2,428 Custodian fees 10,450 Printing and postage 30,360 Registration fees 32,165 Professional fees 18,709 Other 3,057 - -------------------------------------------------------------------------- Total expenses 1,192,316 Expenses waived/reimbursed by the Investment Manager and its affiliates (81,629) Earnings and bank fee credits on cash balances (129) - -------------------------------------------------------------------------- Total net expenses 1,110,558 - -------------------------------------------------------------------------- Investment income (loss) -- net 3,896,530 - -------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) -- NET Net realized gain (loss) on: Security transactions (34,093,718) Foreign currency transactions 1,994 - -------------------------------------------------------------------------- Net realized gain (loss) on investments (34,091,724) Net change in unrealized appreciation (depreciation) on investments (43,570,427) - -------------------------------------------------------------------------- Net gain (loss) on investments (77,662,151) - -------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from operations $(73,765,621) - -------------------------------------------------------------------------- </Table> The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 19 STATEMENTS OF CHANGES IN NET ASSETS -------------------------------------------- <Table> <Caption> SIX MONTHS ENDED YEAR ENDED DEC. 31, 2008 JUNE 30, 2008 (UNAUDITED) OPERATIONS AND DISTRIBUTIONS Investment income (loss) -- net $ 3,896,530 $ 5,584,208 Net realized gain (loss) on investments (34,091,724) 7,805,861 Net change in unrealized appreciation (depreciation) on investments (43,570,427) (47,066,092) - --------------------------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from operations (73,765,621) (33,676,023) - --------------------------------------------------------------------------------------------- Distributions to shareholders from: Net investment income Class A (651,832) (1,484,774) Class B (58,518) (106,391) Class C (6,869) (11,115) Class I (1,128,727) (1,829,893) Class R4 (1,004) (2,902) Class W (24) (56) Net realized gain Class A (513,651) (14,679,913) Class B (79,805) (2,506,709) Class C (9,354) (232,761) Class I (772,903) (8,717,442) Class R4 (681) (20,584) Class W (20) (549) - --------------------------------------------------------------------------------------------- Total distributions (3,223,388) (29,593,089) - --------------------------------------------------------------------------------------------- </Table> - -------------------------------------------------------------------------------- 20 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- <Table> <Caption> SIX MONTHS ENDED YEAR ENDED DEC. 31, 2008 JUNE 30, 2008 (UNAUDITED) CAPITAL SHARE TRANSACTIONS Proceeds from sales Class A shares $ 8,556,777 $ 22,580,376 Class B shares 975,242 2,597,783 Class C shares 212,613 579,010 Class I shares 41,134,155 74,017,463 Class R4 shares 1,500 8,000 Reinvestment of distributions at net asset value Class A shares 1,135,122 15,706,217 Class B shares 134,675 2,534,302 Class C shares 14,975 236,189 Class I shares 1,901,533 10,545,077 Class R4 shares 1,589 21,205 Payments for redemptions Class A shares (13,612,997) (64,940,426) Class B shares (2,800,806) (14,671,042) Class C shares (221,599) (1,181,708) Class I shares (43,073,714) (42,696,102) Class R4 shares (6,025) (64,415) - --------------------------------------------------------------------------------------------- Increase (decrease) in net assets from capital share transactions (5,646,960) 5,271,929 - --------------------------------------------------------------------------------------------- Total increase (decrease) in net assets (82,635,969) (57,997,183) Net assets at beginning of period 215,089,390 273,086,573 - --------------------------------------------------------------------------------------------- Net assets at end of period $132,453,421 $215,089,390 - --------------------------------------------------------------------------------------------- Undistributed (excess of distributions over) net investment income $ 2,046,794 $ (2,762) - --------------------------------------------------------------------------------------------- </Table> The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 21 FINANCIAL HIGHLIGHTS ----------------------------------------------------------- CLASS A <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007 2006 2005 Net asset value, beginning of period $11.42 $15.83 $15.30 $13.44 $10.46 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .20(b) .33(b) .21 .30 .32 Net gains (losses) (both realized and unrealized) (4.38) (2.55) 1.37 2.76 2.94 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (4.18) (2.22) 1.58 3.06 3.26 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.09) (.20) (.19) (.14) (.18) Distributions from realized gains (.07) (1.99) (.86) (1.06) (.10) - -------------------------------------------------------------------------------------------------------------- Total distributions (.16) (2.19) (1.05) (1.20) (.28) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $7.08 $11.42 $15.83 $15.30 $13.44 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $50 $86 $147 $107 $62 - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) 1.62%(e) 1.45% 1.51% 1.55% 1.57% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) 1.42%(e) 1.40% 1.51% 1.53% 1.49% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.05%(e) 2.41% 1.41% 2.37% 3.56% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 21% 52% 38% 47% 63% - -------------------------------------------------------------------------------------------------------------- Total return(h) (36.82%)(i) (14.32%) 9.97% 24.02% 31.32% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Total return does not reflect payment of a sales charge. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 22 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- CLASS B <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007 2006 2005 Net asset value, beginning of period $11.34 $15.72 $15.20 $13.37 $10.43 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .16(b) .22(b) .05 .18 .22 Net gains (losses) (both realized and unrealized) (4.35) (2.52) 1.39 2.75 2.93 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (4.19) (2.30) 1.44 2.93 3.15 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.06) (.09) (.06) (.04) (.11) Distributions from realized gains (.07) (1.99) (.86) (1.06) (.10) - -------------------------------------------------------------------------------------------------------------- Total distributions (.13) (2.08) (.92) (1.10) (.21) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $7.02 $11.34 $15.72 $15.20 $13.37 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $8 $14 $29 $27 $18 - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) 2.39%(e) 2.21% 2.27% 2.32% 2.34% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) 2.19%(e) 2.16% 2.27% 2.30% 2.27% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 3.29%(e) 1.62% .64% 1.59% 2.77% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 21% 52% 38% 47% 63% - -------------------------------------------------------------------------------------------------------------- Total return(h) (37.14%)(i) (14.92%) 9.13% 23.06% 30.31% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Total return does not reflect payment of a sales charge. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 23 FINANCIAL HIGHLIGHTS (continued) ----------------------------------------------- CLASS C <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007 2006 2005 Net asset value, beginning of period $11.33 $15.72 $15.20 $13.37 $10.43 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .16(b) .23(b) .05 .18 .21 Net gains (losses) (both realized and unrealized) (4.35) (2.54) 1.40 2.75 2.93 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (4.19) (2.31) 1.45 2.93 3.14 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.06) (.09) (.07) (.04) (.10) Distributions from realized gains (.07) (1.99) (.86) (1.06) (.10) - -------------------------------------------------------------------------------------------------------------- Total distributions (.13) (2.08) (.93) (1.10) (.20) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $7.01 $11.33 $15.72 $15.20 $13.37 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $1 $1 $2 $2 $1 - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) 2.39%(e) 2.21% 2.26% 2.32% 2.33% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) 2.18%(e) 2.16% 2.26% 2.29% 2.27% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 3.42%(e) 1.66% .66% 1.61% 2.79% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 21% 52% 38% 47% 63% - -------------------------------------------------------------------------------------------------------------- Total return(h) (37.16%)(i) (14.96%) 9.18% 23.07% 30.29% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Total return does not reflect payment of a sales charge. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 24 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- CLASS I <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(i) 2008 2007 2006 2005 Net asset value, beginning of period $11.45 $15.87 $15.33 $13.46 $10.46 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .22(b) .40(b) .32 .36 .35 Net gains (losses) (both realized and unrealized) (4.40) (2.56) 1.35 2.76 2.95 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (4.18) (2.16) 1.67 3.12 3.30 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.11) (.27) (.27) (.19) (.20) Distributions from realized gains (.07) (1.99) (.86) (1.06) (.10) - -------------------------------------------------------------------------------------------------------------- Total distributions (.18) (2.26) (1.13) (1.25) (.30) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $7.09 $11.45 $15.87 $15.33 $13.46 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $74 $113 $95 $57 $53 - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) .97%(e) .91% 1.04% 1.09% 1.10% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) .97%(e) .91% 1.04% 1.09% 1.10% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.65%(e) 2.89% 1.87% 2.85% 4.04% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 21% 52% 38% 47% 63% - -------------------------------------------------------------------------------------------------------------- Total return (36.76%)(h) (13.90%) 10.52% 24.55% 31.78% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Not annualized. (i) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 25 FINANCIAL HIGHLIGHTS (continued) ----------------------------------------------- CLASS R4 <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(i) 2008 2007 2006 2005 Net asset value, beginning of period $11.38 $15.79 $15.26 $13.41 $10.47 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .22(b) .40(b) .24 .32 .38 Net gains (losses) (both realized and unrealized) (4.37) (2.53) 1.37 2.75 2.89 - -------------------------------------------------------------------------------------------------------------- Total from investment operations (4.15) (2.13) 1.61 3.07 3.27 - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.11) (.29) (.22) (.16) (.23) Distributions from realized gains (.07) (1.99) (.86) (1.06) (.10) - -------------------------------------------------------------------------------------------------------------- Total distributions (.18) (2.28) (1.08) (1.22) (.33) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $7.05 $11.38 $15.79 $15.26 $13.41 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $-- $-- $-- $-- $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(c),(d) 1.27%(e) 1.21% 1.34% 1.36% 1.39% - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(d),(f),(g) 1.02%(e) .96% 1.34% 1.35% 1.34% - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.49%(e) 2.86% 1.58% 2.53% 3.79% - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 21% 52% 38% 47% 63% - -------------------------------------------------------------------------------------------------------------- Total return (36.73%)(h) (13.74%) 10.17% 24.22% 31.48% - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) Per share amounts have been calculated using the average shares outstanding method. (c) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (e) Adjusted to an annual basis. (f) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (g) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (h) Not annualized. (i) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- 26 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- CLASS W <Table> <Caption> PER SHARE INCOME AND CAPITAL CHANGES(a) Fiscal period ended June 30, 2008(j) 2008 2007(b) Net asset value, beginning of period $11.37 $15.78 $18.17 - -------------------------------------------------------------------------------------------------------------- INCOME FROM INVESTMENT OPERATIONS: Net investment income (loss) .20(c) .34(c) .24 Net gains (losses) (both realized and unrealized) (4.37) (2.55) (1.62) - -------------------------------------------------------------------------------------------------------------- Total from investment operations (4.17) (2.21) (1.38) - -------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS: Dividends from net investment income (.09) (.21) (.15) Distributions from realized gains (.07) (1.99) (.86) - -------------------------------------------------------------------------------------------------------------- Total distributions (.16) (2.20) (1.01) - -------------------------------------------------------------------------------------------------------------- Net asset value, end of period $7.04 $11.37 $15.78 - -------------------------------------------------------------------------------------------------------------- RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA Net assets, end of period (in millions) $-- $-- $-- - -------------------------------------------------------------------------------------------------------------- Gross expenses prior to expense waiver/reimbursement(d),(e) 1.45%(f) 1.35% 1.48%(f) - -------------------------------------------------------------------------------------------------------------- Net expenses after expense waiver/reimbursement(e),(g),(h) 1.42%(f) 1.35% 1.48%(f) - -------------------------------------------------------------------------------------------------------------- Net investment income (loss) 4.12%(f) 2.48% 1.19%(f) - -------------------------------------------------------------------------------------------------------------- Portfolio turnover rate 21% 52% 38% - -------------------------------------------------------------------------------------------------------------- Total return (36.89%)(i) (14.30%) (7.90%)(i) - -------------------------------------------------------------------------------------------------------------- </Table> (a) For a share outstanding throughout the period. Rounded to the nearest cent. (b) For the period from Dec. 1, 2006 (inception date) to June 30, 2007. (c) Per share amounts have been calculated using the average shares outstanding method. (d) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. (e) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the acquired funds in which it invests. Such indirect expenses are not included in the above reported expense ratios. (f) Adjusted to an annual basis. (g) The Investment Manager and its affiliates have agreed to waive/reimburse certain fees and expenses (excluding fees and expenses of acquired funds), before giving effect to any performance incentive adjustment. (h) Includes the impact of a performance incentive adjustment, if any. Expense ratio is before reduction for earnings and bank fee credits on cash balances. Earnings and bank fee credits were less than 0.01% of average net assets for the six months ended Dec. 31, 2008 and for the year ended June 30, 2008. (i) Not annualized. (j) Six months ended Dec. 31, 2008 (Unaudited). The accompanying Notes to Financial Statements are an integral part of this statement. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 27 NOTES TO FINANCIAL STATEMENTS -------------------------------------------------- (UNAUDITED AS TO DEC. 31, 2008) 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES RiverSource Real Estate Fund (the Fund) is a series of RiverSource Sector Series, Inc. and is registered under the Investment Company Act of 1940 (as amended) as a diversified, open-end management investment company. RiverSource Sector Series, Inc. has 10 billion authorized shares of capital stock that can be allocated among the separate series as designated by the Board of Directors (the Board). The Fund invests primarily in equity securities of companies operating in the real estate industry, including equities of real estate investment trusts (REITs), and other real estate related investments. The Fund offers Class A, Class B, Class C, Class I, Class R4 and Class W shares. - - Class A shares are sold with a front-end sales charge. - - Class B shares may be subject to a contingent deferred sales charge (CDSC) and automatically convert to Class A shares during the ninth year of ownership. - - Class C shares may be subject to a CDSC. - - Class I and Class R4 shares are sold without a front-end sales charge or CDSC and are offered to qualifying institutional investors. - - Class W shares are sold without a front-end sales charge or CDSC and are offered through qualifying discretionary accounts. At Dec. 31, 2008, RiverSource Investments, LLC (RiverSource Investments or the Investment Manager) and the RiverSource affiliated funds-of-funds owned 100% of Class I shares, and the Investment Manager owned 100% of Class W shares. At Dec. 31, 2008, the Investment Manager and the RiverSource affiliated funds-of-funds owned approximately 56% of the total outstanding Fund shares. All classes of shares have identical voting, dividend and liquidation rights. Class specific expenses (e.g., distribution and service fees, transfer agency fees, plan administration services fees) differ among classes. Income, expenses (other than class specific expenses) and realized and unrealized gains or losses on investments are allocated to each class of shares based upon its relative net assets. The Fund's significant accounting policies are summarized below: USE OF ESTIMATES Preparing financial statements that conform to U.S. generally accepted accounting principles requires management to make estimates (e.g., on assets, - -------------------------------------------------------------------------------- 28 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- liabilities and contingent assets and liabilities) that could differ from actual results. VALUATION OF SECURITIES Effective July 1, 2008, the Fund adopted Statement of Financial Accounting Standards No. 157 "Fair Value Measurements" (SFAS 157). SFAS 157 establishes an authoritative definition of fair value, sets out a hierarchy for measuring fair value, and requires additional disclosures about the inputs used to develop the measurements of fair value and the effect of certain measurements reported in the Statement of Operations for a fiscal period. There was no impact to the Fund's net assets or results of operations upon adoption. The fair valuation measurements disclosure can be found following the Notes to Portfolio of Investments. All securities are valued at the close of each business day. Securities traded on national securities exchanges or included in national market systems are valued at the last quoted sales price. Debt securities are generally traded in the over-the-counter market and are valued at a price that reflects fair value as quoted by dealers in these securities or by an independent pricing service. When market quotes are not readily available, the pricing service, in determining fair values of debt securities, takes into consideration such factors as current quotations by broker/dealers, coupon, maturity, quality, type of issue, trading characteristics, and other yield and risk factors it deems relevant in determining valuations. Foreign securities are valued based on quotations from the principal market in which such securities are normally traded. The procedures adopted by the Board generally contemplate the use of fair valuation in the event that price quotations or valuations are not readily available, price quotations or valuations from other sources are not reflective of market value and thus deemed unreliable, or a significant event has occurred in relation to a security or class of securities (such as foreign securities) that is not reflected in price quotations or valuations from other sources. A fair value price is a good faith estimate of the value of a security at a given point in time. Many securities markets and exchanges outside the U.S. close prior to the close of the New York Stock Exchange and therefore the closing prices for securities in such markets or on such exchanges may not fully reflect events that occur after such close but before the close of the New York Stock Exchange, including significant movements in the U.S. market after foreign exchanges have closed. Accordingly, in those situations, Ameriprise Financial, Inc. (Ameriprise Financial), parent company of the Investment Manager, as administrator to the Fund, will fair value foreign securities pursuant to procedures adopted by the Board, including utilizing a third party pricing service to determine these fair - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 29 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- values. These procedures take into account multiple factors, including movements in the U.S. securities markets, to determine a good faith estimate that reasonably reflects the current market conditions as of the close of the New York Stock Exchange. Short-term securities maturing in more than 60 days from the valuation date are valued at the market price or approximate market value based on current interest rates; those maturing in 60 days or less are valued at amortized cost, which approximates fair value. OPTION TRANSACTIONS To produce incremental earnings, protect gains, and facilitate buying and selling of securities for investments, the Fund may buy and write options traded on any U.S. or foreign exchange or in the over-the-counter market where completing the obligation depends upon the credit standing of the other party. Cash collateral may be collected by the Fund to secure certain over-the-counter options (OTC options) trades. Cash collateral held by the Fund for such option trades must be returned to the counterparty upon closure, exercise or expiration contract. The Fund also may buy and sell put and call options and write covered call options on portfolio securities as well as write cash-secured put options. The risk in writing a call option is that the Fund gives up the opportunity for profit if the market price of the security increases. The risk in writing a put option is that the Fund may incur a loss if the market price of the security decreases and the option is exercised. The risk in buying an option is that the Fund pays a premium whether or not the option is exercised. The Fund also has the additional risk of being unable to enter into a closing transaction if a liquid secondary market does not exist. Option contracts are valued daily at the closing prices on their primary exchanges and unrealized appreciation or depreciation is recorded. Option contracts, including OTC option contracts, with no readily available market value are valued using quotations obtained from independent brokers as of the close of the New York Stock Exchange. The Fund will realize a gain or loss when the option transaction expires or closes. When an option is exercised, the proceeds on sales for a written call option, the purchase cost for a written put option or the cost of a security for a purchased put or call option is adjusted by the amount of premium received or paid. At Dec. 31, 2008, and for the six months then ended, the Fund had no outstanding option contracts. FUTURES TRANSACTIONS To gain exposure to or protect itself from market changes, the Fund may buy and sell financial futures contracts traded on any U.S. or foreign exchange. The Fund also may buy and write put and call options on these futures contracts. Risks of - -------------------------------------------------------------------------------- 30 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- entering into futures contracts and related options include the possibility of an illiquid market and that a change in the value of the contract or option may not correlate with changes in the value of the underlying securities. Futures and options on futures are valued daily based upon the last sale price at the close of the market on the principal exchange on which they are traded. Upon entering into a futures contract, the Fund is required to deposit either cash or securities in an amount (initial margin) equal to a certain percentage of the contract value. Subsequent payments (variation margin) are made or received by the Fund each day. The variation margin payments are equal to the daily changes in the contract value and are recorded as unrealized gains and losses. The Fund recognizes a realized gain or loss when the contract is closed or expires. At Dec. 31, 2008, the Fund had no outstanding futures contracts. FOREIGN CURRENCY TRANSLATIONS AND FORWARD FOREIGN CURRENCY CONTRACTS Securities and other assets and liabilities denominated in foreign currencies are translated daily into U.S. dollars. Foreign currency amounts related to the purchase or sale of securities and income and expenses are translated at the exchange rate on the transaction date. The effect of changes in foreign exchange rates on realized and unrealized security gains or losses is reflected as a component of such gains or losses. In the Statement of Operations, net realized gains or losses from foreign currency transactions, if any, may arise from sales of foreign currency, closed forward contracts, exchange gains or losses realized between the trade date and settlement date on securities transactions, and other translation gains or losses on dividends, interest income and foreign withholding taxes. The Fund may enter into forward foreign currency contracts for operational purposes and to protect against adverse exchange rate fluctuation. The net U.S. dollar value of foreign currency underlying all contractual commitments held by the Fund and the resulting unrealized appreciation or depreciation are determined using foreign currency exchange rates from an independent pricing service. The Fund is subject to the credit risk that the counterparty will not complete its contract obligations. At Dec. 31, 2008, the Fund had no outstanding forward foreign currency contracts. GUARANTEES AND INDEMNIFICATIONS Under the Fund's organizational documents, its officers and directors are indemnified against certain liabilities arising out of the performance of their duties to the Fund. In addition, certain of the Fund's contracts with its service providers contain general indemnification clauses. The Fund's maximum exposure under these arrangements is unknown since the amount of any future - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 31 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- claims that may be made against the Fund cannot be determined and the Fund has no historical basis for predicting the likelihood of any such claims. FEDERAL TAXES The Fund's policy is to comply with Subchapter M of the Internal Revenue Code that applies to regulated investment companies and to distribute substantially all of its taxable income to shareholders. No provision for income or excise taxes is thus required. Financial Accounting Standards Board (FASB) Interpretation 48 (FIN 48), "Accounting for Uncertainty in Income Taxes," clarifies the accounting for uncertainty in income taxes recognized in accordance with FASB Statement 109, "Accounting for Income Taxes." FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. Management of the Fund has concluded that there are no significant uncertain tax positions that would require recognition in the financial statements. Generally, the tax authorities can examine all the tax returns filed for the last three years. Net investment income (loss) and net realized gains (losses) may differ for financial statement and tax purposes primarily because of foreign currency transactions, re-characterization of REIT distributions and losses deferred due to wash sales. The character of distributions made during the year from net investment income or net realized gains may differ from their ultimate characterization for federal income tax purposes. Also, due to the timing of dividend distributions, the fiscal year in which amounts are distributed may differ from the year that the income or realized gains (losses) were recorded by the Fund. RECENT ACCOUNTING PRONOUNCEMENT The Fund has adopted FASB Staff Position No. 133-1 and FIN No. 45-4 (FSP FAS 133-1 and FIN 45-4), "Disclosures about Credit Derivatives and Certain Guarantees: An Amendment of FASB Statement No. 133 and FASB Interpretation No. 45". The amendments to FSP FAS 133-1 and FIN 45-4 require enhanced disclosures about a fund's derivative and guarantees. Funds are required to provide enhanced disclosures about (a) how and why a fund uses derivative instruments, (b) how derivative instruments and related hedged items are accounted for under SFAS 133 and its related interpretations, (c) how derivative instruments and related hedged items affect a fund's financial position, financial performance, and cash flows and (d) the current status of the payment/performance risk of the credit derivative. The amendments to FSP FAS 133-1 and FIN 45-4 also require additional disclosures about the current status of the payment/performance risk of a guarantee. At Dec. 31, 2008, the Fund did not - -------------------------------------------------------------------------------- 32 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- own nor was it a party to any credit derivative contracts within the scope of these amendments. In March 2008, the FASB issued Statement of Financial Accounting Standards No. 161 (SFAS 161), "Disclosures about Derivative Instruments and Hedging Activities -- an amendment of FASB Statement No. 133," which requires enhanced disclosures about a fund's derivative and hedging activities. SFAS 161 is effective for financial statements issued for fiscal years and interim periods beginning after Nov. 15, 2008. As of Dec. 31, 2008, management does not believe the adoption of SFAS 161 will impact the financial statement amounts; however, additional footnote disclosures may be required about the use of derivative instruments and hedging items. DIVIDENDS TO SHAREHOLDERS Dividends from net investment income, declared and paid each calendar quarter, when available, are reinvested in additional shares of the Fund at net asset value or payable in cash. Capital gains, when available, are distributed along with the last income dividend of the calendar year. OTHER Security transactions are accounted for on the date securities are purchased or sold. Dividend income is recognized on the ex-dividend date and interest income, including amortization of premium, market discount and original issue discount using the effective interest method, is accrued daily. The Fund receives distributions from holdings in REITs which report information on the character components of their distributions annually. A portion of distributions received from REITS during the period is estimated to be capital gain and a portion is estimated to be a return of capital, which is recorded as a reduction of the cost basis of securities held. These estimates are subsequently adjusted when the actual character of the distributions are disclosed by the REITs. 2. EXPENSES AND SALES CHARGES INVESTMENT MANAGEMENT SERVICES FEES Under an Investment Management Services Agreement, the Investment Manager determines which securities will be purchased, held or sold. The management fee is a percentage of the Fund's average daily net assets that declines from 0.84% to 0.72% annually as the Fund's assets increase. The fee may be adjusted upward or downward by a performance incentive adjustment determined monthly by measuring the percentage difference over a rolling 12-month period between the annualized performance of one Class A share of the Fund and the annualized - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 33 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- performance of the Lipper Real Estate Funds Index. In certain circumstances, the Board may approve a change in the index. The maximum adjustment is 0.12% per year. If the performance difference is less than 0.50%, the adjustment will be zero. The adjustment decreased the management fee by $32,242 for the six months ended Dec. 31, 2008. The management fee for the six months ended Dec. 31, 2008 was 0.80% of the Fund's average daily net assets, including the adjustment under the terms of the performance incentive arrangement. ADMINISTRATIVE SERVICES FEES Under an Administrative Services Agreement, the Fund pays Ameriprise Financial a fee for administration and accounting services at a percentage of the Fund's average daily net assets that declines from 0.06% to 0.03% annually as the Fund's assets increase. The fee for the six months ended Dec. 31, 2008 was 0.06% of the Fund's average daily net assets. OTHER FEES Other expenses are for, among other things, certain expenses of the Fund or the Board including: Fund boardroom and office expense, employee compensation, employee health and retirement benefits, and certain other expenses. Payment of these Fund and Board expenses is facilitated by a company providing limited administrative services to the Fund and the Board. For the six months ended Dec. 31, 2008, other expenses paid to this company were $749. COMPENSATION OF BOARD MEMBERS Under a Deferred Compensation Plan (the Plan), non-interested board members may defer receipt of their compensation. Deferred amounts are treated as though equivalent dollar amounts had been invested in shares of the Fund or other RiverSource funds. The Fund's liability for these amounts is adjusted for market value changes and remains in the Fund until distributed in accordance with the Plan. TRANSFER AGENCY FEES Under a Transfer Agency Agreement, RiverSource Service Corporation (the Transfer Agent) maintains shareholder accounts and records. The Fund pays the Transfer Agent an annual account-based fee at a rate equal to $19.50 for Class A, $20.50 for Class B and $20.00 for Class C for this service. The Fund also pays the Transfer Agent an annual asset-based fee at a rate of 0.05% of the Fund's average daily net assets attributable to Class R4 shares and an annual asset- based fee at a rate of 0.20% of the Fund's average daily net assets attributable to Class W shares. - -------------------------------------------------------------------------------- 34 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- The Transfer Agent charges an annual fee of $5 per inactive account, charged on a pro rata basis for 12 months from the date the account becomes inactive. These fees are included in the transfer agency fees on the Statement of Operations. PLAN ADMINISTRATION SERVICES FEES Under a Plan Administration Services Agreement with the Transfer Agent, the Fund pays an annual fee at a rate of 0.25% of the Fund's average daily net assets attributable to Class R4 shares for the provision of various administrative, recordkeeping, communication and educational services. DISTRIBUTION FEES The Fund has agreements with RiverSource Distributors, Inc. and RiverSource Fund Distributors, Inc. (collectively, the Distributor) for distribution and shareholder services. Under a Plan and Agreement of Distribution pursuant to Rule 12b-1, the Fund pays a fee at an annual rate of up to 0.25% of the Fund's average daily net assets attributable to Class A and Class W shares and a fee at an annual rate of up to 1.00% of the Fund's average daily net assets attributable to Class B and Class C shares. For Class B and Class C shares, up to 0.75% of the fee is reimbursed for distribution expenses. The amount of distribution expenses incurred by the Distributor and not yet reimbursed ("unreimbursed expense") was approximately $491,000 and $10,000 for Class B and Class C shares, respectively. These amounts are based on the most recent information available as of Oct. 31, 2008, and may be recovered from future payments under the distribution plan or CDSC. To the extent the unreimbursed expense has been fully recovered, the distribution fee is reduced. SALES CHARGES Sales charges received by the Distributor for distributing Fund shares were $51,128 for Class A, $4,013 for Class B and $190 for Class C for the six months ended Dec. 31, 2008. EXPENSES WAIVED/REIMBURSED BY THE INVESTMENT MANAGER AND ITS AFFILIATES For the six months ended Dec. 31, 2008, the Investment Manager and its affiliates waived/reimbursed certain fees and expenses such that net expenses (excluding fees and expenses of acquired funds*), including the adjustment under the terms of a performance incentive arrangement, were as follows: <Table> Class A............................................. 1.42% Class B............................................. 2.19 Class C............................................. 2.18 Class R4............................................ 1.02 Class W............................................. 1.42 </Table> - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 35 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- The waived/reimbursed fees and expenses for the transfer agency fees at the class level were as follows: <Table> Class A........................................... $69,662 Class B........................................... 10,676 Class C........................................... 1,177 </Table> The waived/reimbursed fees and expenses for the plan administration services fees at the class level were as follows: <Table> Class R4........................................... $114 </Table> The Investment Manager and its affiliates have contractually agreed to waive certain fees and expenses until June 30, 2009, unless sooner terminated at the discretion of the Board, such that net expenses (excluding fees and expenses of acquired funds*), before giving effect to any performance incentive adjustment, will not exceed the following percentage of the Fund's average daily net assets: <Table> Class A............................................. 1.46% Class B............................................. 2.23 Class C............................................. 2.22 Class I............................................. 1.01 Class R4............................................ 1.31 Class W............................................. 1.46 </Table> * In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro rata share of the fees and expenses of the funds in which it invests (also referred to as "acquired funds"), including affiliated and non-affiliated pooled investment vehicles (including mutual funds and exchange traded funds). Because the acquired funds have varied expense and fee levels and the Fund may own different proportions of acquired funds at different times, the amount of fees and expenses incurred indirectly by the Fund will vary. EARNINGS AND BANK FEE CREDITS During the six months ended Dec. 31, 2008, the Fund's transfer agency fees were reduced by $129 as a result of bank fee credits from overnight cash balances. CUSTODIAN FEES Effective Dec. 15, 2008, the Fund pays custodian fees to JPMorgan Chase Bank, N.A. Prior to Dec. 15, 2008, the Fund paid custodian fees to Ameriprise Trust Company, a subsidiary of Ameriprise Financial. 3. SECURITIES TRANSACTIONS Cost of purchases and proceeds from sales of securities (other than short-term obligations) aggregated $37,645,957 and $40,437,439, respectively, for the six months ended Dec. 31, 2008. Realized gains and losses are determined on an identified cost basis. - -------------------------------------------------------------------------------- 36 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- 4. CAPITAL SHARE TRANSACTIONS Transactions in shares of capital stock for the periods indicated are as follows: <Table> <Caption> SIX MONTHS ENDED DEC. 31, 2008 ISSUED FOR REINVESTED NET SOLD DISTRIBUTIONS REDEEMED INCREASE (DECREASE) - ---------------------------------------------------------------------------------- Class A 865,096 132,843 (1,524,884) (526,945) Class B 99,453 16,456 (282,962) (167,053) Class C 24,425 1,843 (22,837) 3,431 Class I 4,900,910 221,787 (4,545,346) 577,351 Class R4 131 187 (475) (157) - ---------------------------------------------------------------------------------- </Table> <Table> <Caption> YEAR ENDED JUNE 30, 2008 ISSUED FOR REINVESTED NET SOLD DISTRIBUTIONS REDEEMED INCREASE (DECREASE) - ---------------------------------------------------------------------------------- Class A 1,620,097 1,327,612 (4,675,335) (1,727,626) Class B 193,231 217,558 (1,021,054) (610,265) Class C 44,818 20,266 (88,461) (23,377) Class I 5,791,409 883,959 (2,746,559) 3,928,809 Class R4 569 1,795 (4,775) (2,411) - ---------------------------------------------------------------------------------- </Table> 5. AFFILIATED MONEY MARKET FUND The Fund may invest its daily cash balance in RiverSource Short-Term Cash Fund, a money market fund established for the exclusive use of the RiverSource funds and other institutional clients of RiverSource Investment. The cost of the Fund's purchases and proceeds from sales of shares of the RiverSource Short-Term Cash Fund aggregated $38,763,960 and $52,107,958, respectively, for the six months ended Dec. 31, 2008. The income distributions received with respect to the Fund's investment in RiverSource Short-Term Cash Fund can be found on the Statement of Operations and the Fund's invested balance in RiverSource Short- Term Cash Fund at Dec. 31, 2008, can be found in the Portfolio of Investments. 6. BANK BORROWINGS The Fund has entered into a revolving credit facility with a syndicate of banks led by JPMorgan Chase Bank, N.A. (the Administrative Agent), whereby the Fund may borrow for the temporary funding of shareholder redemptions or for other temporary or emergency purposes. The credit facility became effective on - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 37 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- Oct. 16, 2008, replacing a prior credit facility. The credit facility agreement, which is a collective agreement between the Fund and certain other RiverSource funds, severally and not jointly, permits collective borrowings up to $475 million. The borrowers shall have the right, upon written notice to the Administrative Agent to request an increase of up to $175 million in the aggregate amount of the credit facility from new or existing lenders, provided that the aggregate amount of the credit facility shall at no time exceed $650 million. Participation in such increase by any existing lender shall be at such lender's sole discretion. Interest is charged to each Fund based on its borrowings at a rate equal to the federal funds rate plus 0.75%. Each borrowing under the credit facility matures no later than 60 days after the date of borrowing. The Fund also pays a commitment fee equal to its pro rata share of the amount of the credit facility at a rate of 0.06% per annum, in addition to an upfront fee equal to its pro rata share of 0.02% of the amount of the credit facility. The Fund had no borrowings during the six months ended Dec. 31, 2008. Under the prior credit facility which was effective until Oct. 15, 2008, the Fund had entered into a revolving credit facility with a syndicate of banks headed by JPMorgan Chase Bank, N.A., whereby the Fund was permitted to borrow for the temporary funding of shareholder redemptions or for other temporary or emergency purposes. The credit facility agreement, which was a collective agreement between the Fund and certain other RiverSource funds, severally and not jointly, permitted collective borrowings up to $500 million. Interest was charged to each Fund based on its borrowings at a rate equal to the federal funds rate plus 0.30%. Each borrowing under the credit facility matured no later than 60 days after the date of borrowing. The Fund also paid a commitment fee equal to its pro rata share of the amount of the credit facility at a rate of 0.06% per annum. 7. INFORMATION REGARDING PENDING AND SETTLED LEGAL PROCEEDINGS In June 2004, an action captioned John E. Gallus et al. v. American Express Financial Corp. and American Express Financial Advisors Inc., was filed in the United States District Court for the District of Arizona. The plaintiffs allege that they are investors in several American Express Company mutual funds and they purport to bring the action derivatively on behalf of those funds under the Investment Company Act of 1940. The plaintiffs allege that fees allegedly paid to the defendants by the funds for investment advisory and administrative services are excessive. The plaintiffs seek remedies including restitution and rescission of investment advisory and distribution agreements. The plaintiffs voluntarily agreed to transfer this case to the United States District Court for the District of - -------------------------------------------------------------------------------- 38 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- Minnesota. In response to defendants' motion to dismiss the complaint, the Court dismissed one of plaintiffs' four claims and granted plaintiffs limited discovery. Defendants moved for summary judgment in April 2007. Summary judgment was granted in the defendants' favor on July 9, 2007. The plaintiffs filed a notice of appeal with the Eighth Circuit Court of Appeals on August 8, 2007. In December 2005, without admitting or denying the allegations, American Express Financial Corporation (AEFC, which is now known as Ameriprise Financial, Inc. (Ameriprise Financial)), entered into settlement agreements with the Securities and Exchange Commission (SEC) and Minnesota Department of Commerce (MDOC) related to market timing activities. As a result, AEFC was censured and ordered to cease and desist from committing or causing any violations of certain provisions of the Investment Advisers Act of 1940, the Investment Company Act of 1940, and various Minnesota laws. AEFC agreed to pay disgorgement of $10 million and civil money penalties of $7 million. AEFC also agreed to retain an independent distribution consultant to assist in developing a plan for distribution of all disgorgement and civil penalties ordered by the SEC in accordance with various undertakings detailed at http://www.sec.gov/litigation/admin/ia-2451.pdf. Ameriprise Financial and its affiliates have cooperated with the SEC and the MDOC in these legal proceedings, and have made regular reports to the RiverSource Funds' Boards of Directors/Trustees. On November 7, 2008, RiverSource Investments, LLC, a subsidiary of Ameriprise Financial, Inc., acquired J. & W. Seligman & Co., Inc. (Seligman). In late 2003, Seligman conducted an extensive internal review concerning mutual fund trading practices. Seligman's review, which covered the period 2001-2003, noted one arrangement that permitted frequent trading in certain open-end registered investment companies managed by Seligman (the Seligman Funds); this arrangement was in the process of being closed down by Seligman before September 2003. Seligman identified three other arrangements that permitted frequent trading, all of which had been terminated by September 2002. In January 2004, Seligman, on a voluntary basis, publicly disclosed these four arrangements to its clients and to shareholders of the Seligman Funds. Seligman also provided information concerning mutual fund trading practices to the SEC and the Office of the Attorney General of the State of New York (NYAG). In September 2005, the New York staff of the SEC indicated that it was considering recommending to the Commissioners of the SEC the instituting of a formal action against Seligman and the distributor of the Seligman Funds, Seligman Advisors, Inc., relating to frequent trading in the Seligman Funds. Seligman responded to the staff in October 2005 that it believed that any action would be both inappropriate and unnecessary, especially in light of the fact that Seligman - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 39 NOTES TO FINANCIAL STATEMENTS (continued) -------------------------------------- had previously resolved the underlying issue with the Independent Directors of the Seligman Funds and made recompense to the affected Seligman Funds. In September 2006, the NYAG commenced a civil action in New York State Supreme Court against Seligman, Seligman Advisors, Inc., Seligman Data Corp. (transfer agent for the Seligman Funds) and Brian T. Zino (collectively, the Seligman Parties), alleging, in substance, that, in addition to the four arrangements noted above, the Seligman Parties permitted other persons to engage in frequent trading and, as a result, the prospectus disclosure used by the registered investment companies managed by Seligman is and has been misleading. The NYAG included other related claims and also claimed that the fees charged by Seligman to the Seligman Funds were excessive. The NYAG is seeking damages of at least $80 million and restitution, disgorgement, penalties and costs and injunctive relief. The Seligman Parties answered the complaint in December 2006 and believe that the claims are without merit. Any resolution of these matters may include the relief noted above or other sanctions or changes in procedures. Any damages would be paid by Seligman and not by the Seligman Funds. If the NYAG obtains injunctive relief, each of Seligman, RiverSource Investments and their affiliates could, in the absence of the SEC in its discretion granting exemptive relief, be enjoined from providing advisory and underwriting services to the Seligman Funds and other registered investment companies including those funds in the RiverSource complex of funds. Neither Seligman nor RiverSource Investments believes that the foregoing legal action or other possible actions will have a material adverse impact on Seligman, RiverSource Investments or their current or former clients, including the Seligman Funds and other investment companies managed by RiverSource Investments; however, there can be no assurance of this or that these matters and any related publicity will not affect demand for shares of the Seligman Funds and such other investment companies or have other adverse consequences. Ameriprise Financial and certain of its affiliates have historically been involved in a number of legal, arbitration and regulatory proceedings, including routine litigation, class actions, and governmental actions, concerning matters arising in connection with the conduct of their business activities. Ameriprise Financial believes that the Funds are not currently the subject of, and that neither Ameriprise Financial nor any of its affiliates are the subject of, any pending legal, arbitration or regulatory proceedings that are likely to have a material adverse effect on the Funds or the ability of Ameriprise Financial or its affiliates to perform under their contracts with the Funds. Ameriprise Financial is required to make 10-Q, 10-K and, as necessary, 8-K filings with the Securities and Exchange Commission on legal and regulatory matters that relate to Ameriprise - -------------------------------------------------------------------------------- 40 RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT - -------------------------------------------------------------------------------- Financial and its affiliates. Copies of these filings may be obtained by accessing the SEC website at www.sec.gov. There can be no assurance that these matters, or the adverse publicity associated with them, will not result in increased fund redemptions, reduced sale of fund shares or other adverse consequences to the Funds. Further, although we believe proceedings are not likely to have a material adverse effect on the Funds or the ability of Ameriprise Financial or its affiliates to perform under their contracts with the Funds, these proceedings are subject to uncertainties and, as such, we are unable to estimate the possible loss or range of loss that may result. An adverse outcome in one or more of these proceedings could result in adverse judgments, settlements, fines, penalties or other relief that could have a material adverse effect on the consolidated financial condition or results of operations of Ameriprise Financial. PROXY VOTING ------------------------------------------------------------------- The policy of the Board is to vote the proxies of the companies in which the Fund holds investments consistent with the procedures as stated in the Statement of Additional Information (SAI). You may obtain a copy of the SAI without charge by calling RiverSource Funds at (888) 791-3380; contacting your financial institution; visiting riversource.com/funds; or searching the website of the Securities and Exchange Commission (SEC) at http://www.sec.gov. Information regarding how the Fund voted proxies relating to portfolio securities is filed with the SEC by August 31 for the most recent 12-month period ending June 30 of that year, and is available without charge by visiting riversource.com/funds; or searching the website of the SEC at www.sec.gov. - -------------------------------------------------------------------------------- RIVERSOURCE REAL ESTATE FUND -- 2008 SEMIANNUAL REPORT 41 RIVERSOURCE REAL ESTATE FUND 734 Ameriprise Financial Center Minneapolis, MN 55474 RIVERSOURCE.COM/FUNDS <Table> This report must be accompanied or preceded by the Fund's current prospectus. RiverSource(R) mutual funds are distributed by RiverSource Distributors, Inc., and RiverSource Fund Distributors, Inc., Members FINRA, and managed by RiverSource Investments, LLC. RiverSource is part of Ameriprise Financial, Inc. (RIVERSOURCE INVESTMENTS LOGO) (C) 2009 RiverSource Investments, LLC. S-6292 F (2/09) </Table> Item 2. Code of Ethics. Not applicable for semi-annual reports. Item 3. Audit Committee Financial Expert. Not applicable for semi-annual reports. Item 4. Principal Accountant Fees and Services. Not applicable for semi-annual reports. Item 5. Audit Committee of Listed Registrants. Not applicable. Item 6. The complete schedule of investments is included in Item 1 of this Form N-CSR. Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies. Not applicable. Item 8. Portfolio Managers of Closed-End Management Investment Companies. Not applicable. Item 9. Purchase of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers. Not applicable. Item 10. Submission of matters to a vote of security holders. Not applicable. Item 11. Controls and Procedures. (a) Based upon their evaluation of the registrant's disclosure controls and procedures as conducted within 90 days of the filing date of this Form N-CSR, the registrant's Principal Financial Officer and Principal Executive Officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (b) There were no changes in the registrant's internal controls over financial reporting that occurred during the registrant's last fiscal half-year (the registrant's second fiscal half-year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 12. Exhibits. (a)(1) Not applicable for semi-annual reports. (a)(2) Separate certification for the Registrant's principal executive officer and principal financial officer, as required by Section 302 of the Sarbanes-Oxley Act of 2002 and Rule 30a-2(a) under the Investment Company Act of 1940, are attached as EX.99.CERT. (a)(3) Not applicable. (b) A certification by the Registrant's principal executive officer and principal financial officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and Rule 30a-2(b) under the Investment Company Act of 1940, is attached as EX.99.906 CERT. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) RiverSource Sector Series, Inc. By /s/ Patrick T. Bannigan ------------------------------- Patrick T. Bannigan President and Principal Executive Officer Date March 4, 2009 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. By /s/ Patrick T. Bannigan ----------------------------------------- Patrick T. Bannigan President and Principal Executive Officer Date March 4, 2009 By /s/ Jeffrey P. Fox ----------------------------------------- Jeffrey P. Fox Treasurer and Principal Financial Officer Date March 4, 2009