UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR/S

              CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
                              INVESTMENT COMPANIES



Investment Company Act file number: 811-4019

Exact name of registrant as specified in charter:  USAA INVESTMENT TRUST

Address of principal executive offices and zip code: 9800 FREDERICKSBURG ROAD
                                                     SAN ANTONIO, TX  78288

Name and address of agent for service:               EILEEN M. SMILEY
                                                     USAA INVESTMENT TRUST
                                                     9800 FREDERICKSBURG ROAD
                                                     SAN ANTONIO, TX  78288

Registrant's telephone number, including area code:  (210) 498-4103

Date of fiscal year end:   MAY 31

Date of reporting period:  NOVEMBER 30, 2005



ITEM 1. REPORT TO STOCKHOLDERS.
USAA WORLD GROWTH FUND - SEMIANNUAL  REPORT FOR  PERIOD ENDING NOVEMBER 30, 2005

[LOGO OF USAA]
   USAA(R)

                             USAA WORLD GROWTH Fund

                                      [GRAPHIC OF USAA WORLD GROWTH FUND]

                        S e m i a n n u a l  R e p o r t

- --------------------------------------------------------------------------------
    NOVEMBER 30, 2005


Table of CONTENTS
- --------------------------------------------------------------------------------


                                                                         
MESSAGE FROM THE PRESIDENT                                                   2

MANAGERS' COMMENTARY                                                         4

FUND RECOGNITION                                                             7

INVESTMENT OVERVIEW                                                          8

FINANCIAL INFORMATION

    Portfolio of Investments                                                11

    Notes to Portfolio of Investments                                       17

    Financial Statements                                                    19

    Notes to Financial Statements                                           22

EXPENSE EXAMPLE                                                             35


THIS REPORT IS FOR THE INFORMATION OF THE SHAREHOLDERS AND OTHERS WHO HAVE
RECEIVED A COPY OF THE CURRENTLY EFFECTIVE PROSPECTUS OF THE FUND, MANAGED BY
USAA INVESTMENT MANAGEMENT COMPANY. IT MAY BE USED AS SALES LITERATURE ONLY WHEN
PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS, WHICH PROVIDES FURTHER DETAILS
ABOUT THE FUND.

(C)2006, USAA. All rights reserved.


2

 M E S S A G E
==============------------------------------------------------------------------
               from the PRESIDENT

                                                       "

                                      WE WILL CONTINUE TO LOOK FOR VALUE
[PHOTO OF CHRISTOPHER W. CLAUS]     IN OUR INVESTMENTS, EXAMINE THE RISKS,
                                    AND MAINTAIN OUR INVESTMENT DISCIPLINE.

                                                       "

                                                                   December 2005
- --------------------------------------------------------------------------------

                 As I write to you during the final weeks of 2005, I am watching
                 some interesting dynamics that could affect all of us in the
                 new year.

                 In 2006, we expect the Federal Reserve Board (the Fed) to stop
                 tightening short-term interest rates. After raising rates to
                 4.25% in December 2005, Fed governors, we believe, are likely
                 to hike rates at least one more time on January 31, 2006. If
                 the Fed keeps tightening, there is the possibility that
                 short-term interest rates could eventually be higher than
                 long-term rates, resulting in what is called an inverted yield
                 curve. In some cases, an inverted yield curve has been the
                 precursor of an economic downturn.

                 For the moment, however, the U.S. economy appears to be on
                 solid footing, with estimates for gross domestic product (GDP)
                 growth of about 3% for 2006. While the country is not
                 experiencing an economic boom, we can expect moderate growth in
                 the months ahead, which should translate into gains in
                 corporate earnings in the mid-single digits. Whether earnings
                 will be robust enough to support current stock market
                 valuations, however, remains uncertain. Beyond our shores,
                 international stocks outperformed U.S. equities during 2005. We
                 believe we could see a repeat of this in 2006.

                 In the gold market, prices have continued to rise, fueled by
                 high oil prices, strong investor demand, and an increase in
                 consumer purchases of jewelry. We expect these conditions to
                 persist during 2006.

                 I believe the housing market is at or near the peak in the
                 number of units sold. Inventory has grown, mortgage rates are
                 inching


                                                                               3

 . . . C O N T I N U E D
========================--------------------------------------------------------

                 upward, and some institutions have tightened their lending
                 standards. If housing prices fall, the first to feel the pain
                 could be investors who are "flipping" properties using
                 interest-only or adjustable-rate mortgages (ARMs). The dramatic
                 increase in short-term rates would be particularly painful for
                 housing investors also, especially those with ARMs and
                 interest-only mortgages.

                 Among the biggest stories of 2005 was the resiliency of
                 long-term interest rates. Instead of spiking higher, they were
                 range bound most of the year. In 2006, both short- and
                 long-term rates will continue to be a key market indicator. If
                 rates rise, bond prices will fall - hurting the bond market.

                 Going forward, two factors will have great influence on
                 long-term rates. One is inflation, which appears to be under
                 control at present. The second is the purchase of U.S. debt by
                 foreign investors, which helps us support our budget deficit.
                 With interest rates in other countries significantly lower, it
                 seems likely that foreign demand will remain strong, buoying
                 U.S. bonds. We believe that long-term rates will not spike
                 dramatically but continue to drift upward in a manageable
                 fashion.

                 In this environment, our central concern is that we are paid
                 for the risk we take in all our portfolios. It makes sense to
                 be cautious; there is some risk in the market, but risk
                 premiums are very low.

                 We will continue to look for value in our investments, examine
                 the risks, and maintain our investment discipline. From all of
                 us at USAA Investment Management Company, thank you for your
                 business and the opportunity to serve your investment needs.

                 Sincerely,

                 /S/ CHRISTOPHER W. CLAUS

                 Christopher W. Claus
                 President and Vice Chairman of the Board

                 PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS.


4

 M A N A G E R S '
==================--------------------------------------------------------------
                   COMMENTARY on the Fund

[PHOTO OF DAVID R. MANNHEIM]                      [PHOTO OF SIMON TODD]
 DAVID R. MANNHEIM                                 SIMON TODD, ASIP, CFA
   MFS Investment Management                          MFS Investment Management

- --------------------------------------------------------------------------------

HOW DID THE FUND PERFORM?

                 The USAA World Growth Fund had a total return of 6.95% for the
                 six months ended November 30, 2005. This compares to a 9.48%
                 return for the Lipper Global Funds Average, 10.11% for the
                 Lipper Global Funds Index, and 8.80% for the Morgan Stanley
                 Capital International (MSCI) World Index.

HOW DID OVERSEAS STOCK MARKETS PERFORM COMPARED TO THE UNITED STATES?

                 Overseas developed markets as measured by the MSCI Europe,
                 Australasia and Far East (EAFE) Index had a total return (in
                 U.S. dollars) of 11.23%, while the S&P 500 Index returned just
                 5.88%. Valuations for international companies as a group remain
                 well below their U.S. counterparts, with an earnings
                 environment equal to or better than that in the United States.
                 Inflows into international equity mutual funds in 2005 have

                 PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS.

                 REFER TO PAGE 9 FOR BENCHMARK DEFINITIONS.

                 THE MSCI-EAFE INDEX IS AN UNMANAGED INDEX THAT REFLECTS THE
                 MOVEMENTS OF STOCK MARKETS IN EUROPE, AUSTRALASIA, AND THE FAR
                 EAST BY REPRESENTING A BROAD SELECTION OF DOMESTICALLY LISTED
                 COMPANIES WITHIN EACH MARKET.

                 THE S&P 500 INDEX IS AN UNMANAGED INDEX REPRESENTING THE
                 WEIGHTED AVERAGE PERFORMANCE OF A GROUP OF 500 WIDELY HELD,
                 PUBLICLY TRADED STOCKS. IT IS NOT POSSIBLE TO INVEST DIRECTLY
                 IN THE S&P 500 INDEX.

                 YOU WILL FIND A COMPLETE LIST OF SECURITIES THAT THE FUND OWNS
                 ON PAGES 11-16.

                 FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS
                 CURRENCY FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL
                 INSTABILITY.


                                                                               5

 . . . C O N T I N U E D
========================--------------------------------------------------------

                 been higher than those into U.S. equity funds for the first
                 time since 1990. Additionally, we've seen restructuring and the
                 ability to take out costs happening in Europe, much as it
                 happened in the United States in the late 1990s and early
                 2000s.

WHAT HAS BEEN THE MOST SURPRISING MARKET IN TERMS OF PERFORMANCE?

                 We've seen strong outperformance in Japan. The Japanese prime
                 minister was re-elected with a mandate to restructure and
                 reform, and that has led to a very strong snapback in the
                 stocks of Japanese banks, which have suffered for many years
                 from non-performing loans and other structural problems. As
                 compared to the MSCI World Index, our substantial underweight
                 in Japan as a market and the big Japanese banks specifically
                 detracted from performance during the six months, although it
                 had been highly beneficial in the past few years. We still
                 don't find the bank stocks particularly attractive, but we are
                 finding companies in other sectors in Japan that we like.

IN WHAT KIND OF COMPANIES IS THE FUND INVESTING?

                 We conduct bottom-up fundamental research, investing company by
                 company. The portfolio's industry sector and geographic weights
                 are a result of where we are finding opportunities. If you look
                 at the portfolio, the type of companies we're finding
                 attractive are those focused on corporate spending, as opposed
                 to consumer spending. The consumer has done really well for a
                 long time, but corporations have been hesitant to spend at a
                 time when they have record amounts of cash on hand. Investments
                 that have been put off are starting to be made, benefiting
                 companies in industries such as machinery, heavy construction,
                 and mining.


6

 . . . C O N T I N U E D
========================--------------------------------------------------------
                        COMMENTARY on the Fund

WHICH STOCKS HAD THE BIGGEST IMPACT ON RELATIVE PERFORMANCE?

                 As is sometimes the case, the biggest contributor to relative
                 performance was the fact that we didn't own a poorly performing
                 stock, specifically Pfizer, Inc. (U.S.). Stocks that we did own
                 that had the largest contribution to relative performance were
                 Goldman Sachs Group, Inc. (U.S.), EnCana Corp. (Canada),
                 Hutchison Telecommunications International Ltd. (Hong Kong),
                 and Canadian National Railway Co. (Canada). Hutchison
                 Communications was supported by strong revenue and profit
                 growth and particularly good news from its mobile businesses in
                 emerging markets. Canadian National Railway is benefiting from
                 increasing capital expenditures, strong earnings, and a share
                 buyback program.

                 Among the major detractors from relative performance were
                 Dell, Inc. (U.S.), Symantec Corp. (U.S.), Eli Lilly and Co.
                 (U.S.), and Sanofi-Aventis S.A. (France).

WHAT'S YOUR OUTLOOK?

                 We're finding opportunities in a broad range of sectors, from
                 consumer products companies to industrial firms that we believe
                 should benefit from higher capital expenditures. As always,
                 we're choosing to invest in what we believe to be fundamentally
                 solid companies, one stock at a time, wherever we find them in
                 developed stock markets.


                                                                               7

 F U N D
========------------------------------------------------------------------------
         RECOGNITION

USAA WORLD GROWTH FUND

                             [LOGO OF LIPPER LEADER
                                 TAX EFFICIENCY]

The Fund is listed as a Lipper Leader for Tax Efficiency among 49 funds within
the Lipper Global Multi-Cap Core Funds category for the overall period ending
November 30, 2005.

LIPPER RATINGS FOR TAX EFFICIENCY REFLECT FUNDS' HISTORICAL SUCCESS IN
POSTPONING TAXABLE DISTRIBUTIONS RELATIVE TO PEERS AS OF NOVEMBER 30, 2005. TAX
EFFICIENCY OFFERS NO BENEFIT TO INVESTORS IN TAX-SHELTERED ACCOUNTS SUCH AS
401(K) PLANS. THE FUND RECEIVED A LIPPER LEADER RATING FOR TAX EFFICIENCY AMONG
38 AND 10 FUNDS FOR THE FIVE- AND 10-YEAR PERIODS, RESPECTIVELY, AND A SCORE OF
3 AMONG 49 FUNDS FOR THE THREE-YEAR PERIOD. RATINGS ARE SUBJECT TO CHANGE EVERY
MONTH AND ARE BASED ON AN EQUAL-WEIGHTED AVERAGE OF PERCENTILE RANKS FOR THE TAX
EFFICIENCY METRICS OVER THREE-, FIVE-, AND 10-YEAR PERIODS (IF APPLICABLE). THE
HIGHEST 20% OF FUNDS IN EACH PEER GROUP ARE NAMED LIPPER LEADERS, THE NEXT 20%
RECEIVE A SCORE OF 2, THE MIDDLE 20% ARE SCORED 3, THE NEXT 20% ARE SCORED 4,
AND THE LOWEST 20% ARE SCORED 5. LIPPER RATINGS ARE NOT INTENDED TO PREDICT
FUTURE RESULTS, AND LIPPER DOES NOT GUARANTEE THE ACCURACY OF THIS INFORMATION.
MORE INFORMATION IS AVAILABLE AT WWW.LIPPERLEADERS.COM. LIPPER LEADER COPYRIGHT
2006, REUTERS, ALL RIGHTS RESERVED.


8

 I N V E S T M E N T
====================------------------------------------------------------------
                     OVERVIEW

USAA WORLD GROWTH FUND

OBJECTIVE
- --------------------------------------------------------------------------------

                 Capital appreciation.

TYPES OF INVESTMENTS
- --------------------------------------------------------------------------------

                 Invests principally in a mix of foreign (including emerging
                 market) and domestic equity securities.



- --------------------------------------------------------------------------------
                                       11/30/05                 5/31/05
- --------------------------------------------------------------------------------
                                                       
Net Assets                         $351.9 Million            $330.8 Million
Net Asset Value Per Share             $18.77                    $17.55


- --------------------------------------------------------------------------------
                    AVERAGE ANNUAL TOTAL RETURNS AS OF 11/30/05
- --------------------------------------------------------------------------------



5/31/05 TO 11/30/05*            1 YEAR            5 YEARS          10 YEARS
                                                            
      6.95%                      9.30%             2.64%             6.87%


*TOTAL RETURNS FOR PERIODS OF LESS THAN ONE YEAR ARE NOT ANNUALIZED. THIS
 SIX-MONTH RETURN IS CUMULATIVE.

                 The performance data quoted represents past performance and is
                 no guarantee of future results. Current performance may be
                 higher or lower than the performance data quoted. The return
                 and principal value of an investment will fluctuate, so that an
                 investor's shares, when redeemed, may be worth more or less
                 than their original cost. For performance data current to the
                 most recent month-end, visit usaa.com.

                 TOTAL RETURN MEASURES THE PRICE CHANGE IN A SHARE ASSUMING THE
                 REINVESTMENT OF ALL NET INVESTMENT INCOME DIVIDEND AND REALIZED
                 CAPITAL GAIN DISTRIBUTIONS. THE TOTAL RETURNS QUOTED DO NOT
                 REFLECT THE DEDUCTION OF TAXES THAT A SHAREHOLDER WOULD PAY ON
                 FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES.


                                                                               9

 . . . C O N T I N U E D
========================--------------------------------------------------------

                        CUMULATIVE PERFORMANCE COMPARISON

                  [CHART OF CUMULATIVE PERFORMANCE COMPARISON]



            LIPPER GLOBAL     LIPPER GLOBAL      MSCI WORLD       USAA WORLD
            FUNDS AVERAGE      FUNDS INDEX         INDEX          GROWTH FUND
            -------------     -------------      ----------       -----------
                                                       
11/30/95     $10,000.00        $10,000.00        $10,000.00        $10,000.00
12/31/95      10,192.83         10,194.66         10,290.26         10,269.28
01/31/96      10,483.24         10,495.46         10,474.28         10,559.92
02/29/96      10,609.36         10,605.87         10,535.92         10,746.23
03/31/96      10,774.14         10,768.55         10,709.06         10,984.70
04/30/96      11,142.35         11,125.55         10,958.68         11,446.74
05/31/96      11,281.29         11,225.10         10,965.96         11,551.08
06/30/96      11,272.79         11,195.36         11,019.21         11,551.08
07/31/96      10,772.75         10,708.98         10,627.57         10,938.45
08/31/96      11,031.38         10,983.52         10,747.51         11,271.10
09/30/96      11,387.94         11,292.96         11,166.09         11,557.32
10/31/96      11,398.81         11,295.76         11,241.83         11,518.64
11/30/96      11,949.55         11,829.93         11,869.59         12,166.46
12/31/96      11,936.56         11,848.76         11,677.27         12,228.99
01/31/97      12,240.55         12,113.98         11,815.81         12,692.58
02/28/97      12,297.26         12,187.93         11,949.49         12,692.58
03/31/97      12,096.79         12,042.12         11,710.90         12,564.69
04/30/97      12,294.13         12,194.93         12,091.46         12,724.55
05/31/97      13,033.61         12,940.25         12,835.59         13,459.88
06/30/97      13,585.48         13,495.73         13,473.56         14,075.33
07/31/97      14,262.62         14,169.96         14,091.91         14,716.61
08/31/97      13,496.09         13,385.28         13,147.01         13,999.33
09/30/97      14,326.10         14,216.10         13,859.03         14,840.28
10/31/97      13,457.91         13,321.59         13,127.38         13,949.87
11/30/97      13,575.79         13,349.43         13,357.44         13,661.31
12/31/97      13,785.73         13,505.91         13,518.00         13,802.37
01/31/98      13,943.18         13,657.48         13,892.47         13,819.42
02/28/98      14,910.49         14,579.40         14,829.97         14,859.50
03/31/98      15,708.65         15,313.10         15,453.91         15,694.97
04/30/98      15,936.35         15,536.22         15,602.61         15,959.25
05/31/98      15,793.61         15,403.07         15,404.74         15,652.35
06/30/98      15,939.14         15,450.99         15,768.00         15,584.14
07/31/98      15,971.70         15,457.55         15,740.36         15,339.35
08/31/98      13,597.70         13,206.18         13,638.98         12,728.40
09/30/98      13,679.90         13,213.82         13,877.85         12,631.37
10/31/98      14,540.75         14,088.56         15,130.03         13,681.04
11/30/98      15,383.02         14,864.66         16,027.43         14,298.50
12/31/98      16,227.61         15,482.21         16,808.01         15,233.50
01/31/99      16,768.44         15,805.66         17,173.61         15,718.64
02/28/99      16,240.12         15,349.76         16,714.33         15,198.22
03/31/99      16,832.50         15,876.67         17,407.81         15,842.13
04/30/99      17,595.00         16,596.95         18,091.61         16,397.84
05/31/99      17,147.29         16,108.97         17,428.08         15,974.45
06/30/99      18,135.38         16,920.63         18,238.51         16,874.17
07/31/99      18,173.01         16,966.11         18,181.33         17,042.85
08/31/99      18,161.36         16,948.38         18,146.54         17,143.91
09/30/99      18,089.94         16,801.26         17,968.12         16,886.66
10/31/99      18,894.73         17,455.07         18,899.64         17,401.17
11/30/99      20,476.77         18,627.35         19,428.88         18,310.73
12/31/99      23,136.00         20,697.20         20,999.07         19,915.26
01/31/00      22,211.63         19,888.72         19,794.11         19,079.13
02/29/00      23,962.00         21,118.71         19,845.12         19,915.26
03/31/00      24,343.38         21,644.64         21,214.33         20,732.40
04/30/00      22,907.77         20,564.64         20,314.90         20,048.29
05/31/00      22,110.13         19,953.34         19,798.17         19,582.71
06/30/00      23,129.66         20,743.39         20,462.36         20,418.85
07/31/00      22,511.99         20,323.04         19,883.88         19,733.56
08/31/00      23,526.71         21,148.21         20,528.21         20,473.32
09/30/00      22,219.65         20,024.04         19,434.26         19,113.76
10/31/00      21,505.45         19,536.30         19,106.26         18,374.00
11/30/00      20,029.19         18,397.69         17,943.83         17,054.43
12/31/00      20,578.83         18,937.37         18,231.74         17,684.23
01/31/01      20,922.95         19,250.96         18,582.82         18,174.07
02/28/01      19,223.90         17,840.29         17,010.29         16,324.67
03/31/01      17,785.95         16,601.09         15,890.15         14,975.11
04/30/01      19,062.35         17,738.86         17,061.48         16,294.68
05/31/01      18,879.21         17,630.79         16,839.15         15,894.81
06/30/01      18,346.56         17,135.21         16,309.19         15,404.97
07/31/01      17,909.22         16,710.38         16,091.20         15,155.05
08/31/01      17,140.56         16,046.71         15,316.46         14,595.24
09/30/01      15,440.12         14,547.67         13,964.80         13,145.71
10/31/01      15,875.85         14,909.97         14,231.45         13,595.56
11/30/01      16,825.52         15,723.15         15,071.23         14,405.30
12/31/01      17,062.94         15,951.91         15,164.44         14,588.70
01/31/02      16,542.67         15,468.53         14,703.49         14,156.37
02/28/02      16,390.35         15,377.19         14,574.17         14,136.26
03/31/02      17,157.35         16,105.66         15,245.35         14,850.11
04/30/02      16,724.25         15,715.02         14,698.96         14,458.00
05/31/02      16,702.65         15,750.62         14,723.47         14,498.21
06/30/02      15,677.68         14,835.92         13,827.60         13,643.60
07/31/02      14,297.66         13,523.90         12,660.86         12,376.77
08/31/02      14,346.02         13,586.14         12,682.48         12,497.42
09/30/02      12,957.91         12,235.67         11,286.13         11,512.10
10/31/02      13,692.75         12,934.68         12,117.74         12,165.63
11/30/02      14,364.83         13,567.80         12,769.24         12,577.85
12/31/02      13,706.11         12,976.45         12,148.83         12,258.72
01/31/03      13,275.51         12,560.44         11,778.60         11,784.12
02/28/03      12,963.17         12,251.35         11,572.46         11,440.79
03/31/03      12,844.36         12,115.96         11,534.26         11,481.19
04/30/03      13,906.85         13,156.10         12,556.41         12,480.87
05/31/03      14,776.44         13,966.35         13,271.29         13,147.32
06/30/03      15,027.73         14,234.51         13,499.31         13,298.79
07/31/03      15,364.97         14,535.40         13,771.86         13,440.16
08/31/03      15,748.63         14,920.19         14,067.71         13,581.53
09/30/03      15,794.71         15,001.74         14,152.37         13,732.99
10/31/03      16,677.15         15,854.97         14,990.79         14,419.64
11/30/03      16,954.55         16,149.28         15,217.37         14,773.07
12/31/03      17,908.43         17,123.49         16,170.89         15,658.38
01/31/04      18,254.45         17,482.77         16,430.37         15,941.79
02/29/04      18,578.17         17,856.10         16,705.50         16,326.41
03/31/04      18,483.27         17,779.79         16,594.65         16,265.68
04/30/04      18,013.63         17,320.17         16,254.77         16,154.34
05/31/04      18,070.19         17,378.80         16,390.40         16,285.93
06/30/04      18,399.23         17,671.26         16,739.60         16,630.07
07/31/04      17,688.39         17,010.91         16,193.05         16,103.74
08/31/04      17,673.81         17,020.70         16,264.22         16,083.49
09/30/04      18,111.02         17,475.66         16,571.90         16,447.88
10/31/04      18,526.99         17,893.29         16,977.42         16,893.23
11/30/04      19,559.84         18,891.15         17,869.27         17,773.83
12/31/04      20,290.48         19,584.99         18,551.39         18,526.85
01/31/05      19,827.35         19,212.66         18,133.72         18,247.40
02/28/05      20,448.17         19,825.69         18,708.16         18,702.81
03/31/05      19,994.54         19,412.99         18,346.58         18,350.90
04/30/05      19,524.40         18,978.17         17,945.28         17,936.89
05/31/05      19,920.10         19,300.51         18,264.12         18,164.60
06/30/05      20,129.24         19,506.80         18,422.16         18,071.44
07/31/05      20,901.43         20,277.66         19,065.67         18,816.66
08/31/05      21,154.47         20,527.79         19,209.34         19,044.36
09/30/05      21,676.50         21,074.96         19,708.28         19,354.87
10/31/05      21,087.88         20,598.98         19,230.13         19,034.01
11/30/05      21,711.41         21,252.71         19,870.87         19,427.32


                                   [END CHART]

                      DATA FROM 11/30/95 THROUGH 11/30/05.

         The graph illustrates the comparison of a $10,000 hypothetical
         investment in the USAA World Growth Fund to the following benchmarks:

                 THE LIPPER GLOBAL FUNDS AVERAGE IS AN AVERAGE PERFORMANCE LEVEL
                 OF ALL GLOBAL FUNDS, REPORTED BY LIPPER INC., AN INDEPENDENT
                 ORGANIZATION THAT MONITORS THE PERFORMANCE OF MUTUAL FUNDS.

                 THE LIPPER GLOBAL FUNDS INDEX TRACKS THE TOTAL RETURN
                 PERFORMANCE OF THE 30 LARGEST FUNDS WITHIN THE LIPPER GLOBAL
                 FUNDS CATEGORY.

                 THE MORGAN STANLEY CAPITAL INTERNATIONAL (MSCI) WORLD INDEX IS
                 AN UNMANAGED INDEX THAT REFLECTS THE MOVEMENTS OF WORLD STOCK
                 MARKETS BY REPRESENTING A BROAD SELECTION OF DOMESTICALLY
                 LISTED COMPANIES WITHIN EACH MARKET.

PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS, AND THE CUMULATIVE
PERFORMANCE QUOTED DOES NOT REFLECT THE DEDUCTION OF TAXES THAT A SHAREHOLDER
WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES.


10

 . . . C O N T I N U E D
========================-------------------------------------------------------
                         OVERVIEW

- ---------------------------------------------------------
                    TOP 10 EQUITY HOLDINGS
                      (% of Net Assets)
- ---------------------------------------------------------


                                                 
Reckitt Benckiser plc                               3.4%

Nestle S.A.                                         2.8%

Air Liquide S.A.                                    2.5%

Roche Holdings AG                                   2.1%

Johnson & Johnson, Inc.                             2.0%

Samsung Electronics Co. Ltd.                        1.9%

American Express Co.                                1.8%

Goldman Sachs Group, Inc.                           1.8%

Sanofi-Aventis S.A.                                 1.8%

Schneider Electric S.A.                             1.8%
- ---------------------------------------------------------


- ---------------------------------------------------------
                    TOP 10 INDUSTRIES
                    (% of Net Assets)
- ---------------------------------------------------------


                                                 
Pharmaceuticals                                     10.6%

Household Products                                   5.4%

Health Care Equipment                                4.0%

Industrial Gases                                     3.6%

Diversified Banks                                    3.3%

Movies & Entertainment                               3.3%

Regional Banks                                       3.2%

Agricultural Products                                3.1%

Semiconductors                                       3.1%

Integrated Oil & Gas                                 2.9%
- ---------------------------------------------------------


                ASSET ALLOCATION
                    11/30/05

                         [PIE CHART OF ASSET ALLOCATION]


                                             
United States                                   36.6%
United Kingdom                                  13.4%
France                                          12.1%
Japan                                            9.6%
Switzerland                                      7.5%
Other*                                          29.7%


                    [END CHART]

                 *INCLUDES COUNTRIES WITH LESS THAN 3% OF THE PORTFOLIO, MONEY
                  MARKET INSTRUMENTS (3.1%), AND SHORT-TERM INVESTMENTS
                  PURCHASED WITH CASH COLLATERAL FROM SECURITIES LOANED (9.6%).

                 PERCENTAGES ARE OF THE NET ASSETS OF THE FUND AND MAY NOT EQUAL
                 100%.

                 YOU WILL FIND A COMPLETE LIST OF SECURITIES THAT THE FUND OWNS
                 ON PAGES 11-16.

                 FOREIGN INVESTING IS SUBJECT TO ADDITIONAL RISKS, SUCH AS
                 CURRENCY FLUCTUATIONS, MARKET ILLIQUIDITY, AND POLITICAL
                 INSTABILITY.


                                                                              11

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==================--------------------------------------------------------------
                   of INVESTMENTS

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)



                                                                                                MARKET
    NUMBER                                                                                       VALUE
 OF SHARES     SECURITY                                                                          (000)
- ------------------------------------------------------------------------------------------------------
                                                                                        
               INTERNATIONAL STOCKS (59.6%)

               AUSTRALIA (0.7%)
   184,364     QBE Insurance Group Ltd. (Property & Casualty Insurance)(f)                    $  2,584
                                                                                              --------
               AUSTRIA (1.0%)
    64,300     Erste Bank der oesterreichischen Sparkassen AG (Regional Banks)(f)                3,416
                                                                                              --------
               CANADA (1.5%)
    48,388     Canadian National Railway Co. (Railroads)                                         3,864
    28,600     EnCana Corp. (Oil & Gas Exploration & Production)                                 1,269
                                                                                              --------
                                                                                                 5,133
                                                                                              --------
               FRANCE (12.1%)
   186,000     AXA S.A. (Multi-Line Insurance)(f)                                                5,578
    48,870     Air Liquide S.A. (Industrial Gases)(a,f)                                          8,792
    58,300     Credit Agricole S.A. (Regional Banks)(f)                                          1,756
    35,400     L'Oreal S.A. (Personal Products)(f)                                               2,548
    56,800     LVMH Moet Hennessy Louis Vuitton S.A. (Apparel &
                  Accessories & Luxury Goods)(a,f)                                               4,844
     2,100     Pernod Ricard S.A. (Distillers & Vintners)                                          343
    79,700     Sanofi-Aventis S.A. (Pharmaceuticals)(f)                                          6,412
    74,782     Schneider Electric S.A. (Electrical Components & Equipment)(f)                    6,420
    10,400     Total S.A. (Integrated Oil & Gas)(a,f)                                            2,599
    25,174     Total S.A. ADR (Integrated Oil & Gas)                                             3,139
                                                                                              --------
                                                                                                42,431
                                                                                              --------
               GERMANY (2.4%)
    40,700     Bayerische Motoren Werke AG (Automobile Manufacturers)(f)                         1,790
    37,500     E. On AG (Multi-Utilities)(f)                                                     3,565
    50,400     Schering AG (Pharmaceuticals)(f)                                                  3,257
                                                                                              --------
                                                                                                 8,612
                                                                                              --------
               HONG KONG (1.5%)
   254,000     Esprit Holdings Ltd. (Apparel Retail)(f)                                          1,785
 2,492,000     Hutchison Telecommunications International Ltd. (Wireless
                  Telecommunication Services)*(f)                                                3,454
                                                                                              --------
                                                                                                 5,239
                                                                                              --------
               HUNGARY (0.5%)
    25,000     OTP Bank Ltd. GDR (Regional Banks)(f)                                             1,641
                                                                                              --------



12

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==================--------------------------------------------------------------
                   of INVESTMENTS
                   (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)



                                                                                                MARKET
    NUMBER                                                                                       VALUE
 OF SHARES     SECURITY                                                                          (000)
- ------------------------------------------------------------------------------------------------------
                                                                                        
               INDONESIA (0.3%)
 3,675,500     PT Bank Central Asia Tbk (Diversified Banks)(f)                                $  1,207
                                                                                              --------
               ITALY (1.1%)
   604,300     UniCredito Italiano S.p.A. (Regional Banks)(f)                                    3,733
                                                                                              --------
               JAPAN (9.6%)
   384,000     Asahi Glass Co. Ltd. (Building Products)(a,f)                                     4,409
   154,000     Bridgestone Corp. (Tires & Rubber)(a,f)                                           3,297
    95,000     Canon, Inc. (Electronic Equipment Manufacturers)(a,f)                             5,342
    57,600     Chugai Pharmaceutical Co. Ltd. (Pharmaceuticals)(a,f)                             1,296
    26,700     Nintendo Co. Ltd. (Leisure Products)(f)                                           2,924
    39,400     Nitto Denko Corp. (Specialty Chemicals)(f)                                        2,696
    39,100     Omron Corp. (Electrical Components & Equipment)(f)                                  889
   164,000     Ricoh Co., Ltd. (Office Electronics)(f)                                           2,862
   435,000     Shinsei Bank Ltd. (Diversified Banks)(f)                                          2,433
   416,000     Tokyo Gas Co. Ltd. (Gas Utilities)(f)                                             1,671
   220,000     Toray Industries, Inc. (Textiles)(f)                                              1,499
    92,500     Toyota Motor Corp. (Automobile Manufacturers)(f)                                  4,475
                                                                                              --------
                                                                                                33,793
                                                                                              --------
               KOREA (1.9%)
    11,480     Samsung Electronics Co. Ltd. (Semiconductors)(f)                                  6,612
                                                                                              --------
               NETHERLANDS (0.5%)
   134,700     Reed Elsevier N.V. (Publishing)(f)                                                1,790
                                                                                              --------
               POLAND (0.2%)
    85,200     Powszechna Kasa Oszczednosci Bank Polski S.A. (Regional Banks)(f)                   715
                                                                                              --------
               SINGAPORE (0.8%)
 1,867,150     Singapore Telecommunications Ltd. (Integrated Telecommunication Services)(f)      2,766
                                                                                              --------
               SPAIN (2.0%)
   204,800     Banco Bilbao Vizcaya Argentaria S.A. (Diversified Banks)(f)                       3,610
   125,100     Iberdrola S.A. (Electric Utilities)(a,f)                                          3,280
                                                                                              --------
                                                                                                 6,890
                                                                                              --------



                                                                              13

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==================--------------------------------------------------------------
                   of INVESTMENTS
                   (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)



                                                                                                MARKET
    NUMBER                                                                                       VALUE
 OF SHARES    SECURITY                                                                           (000)
- ------------------------------------------------------------------------------------------------------
                                                                                        
              SWEDEN (2.2%)
    69,300    Atlas Copco AB "A" (Industrial Machinery)(f)                                    $  1,384
   417,800    LM Ericsson Telephone Co. "B" ADR (Communications Equipment)(f)                    1,359
   107,700    Sandvik AB (Industrial Machinery)(f)                                               5,082
                                                                                              --------
                                                                                                 7,825
                                                                                              --------
              SWITZERLAND (7.5%)
    37,543    Julius Baer Holding Ltd. "B" (Diversified Banks)(f)                                2,628
    33,274    Nestle S.A. (Packaged Foods & Meat)(f)                                             9,802
    50,200    Roche Holdings AG (Pharmaceuticals)(f)                                             7,512
     7,300    Swiss Re (Reinsurance)(f)                                                            537
    64,166    UBS AG (Diversified Capital Markets)(f)                                            5,888
                                                                                              --------
                                                                                                26,367
                                                                                              --------
              THAILAND (0.4%)
   618,400    Bangkok Bank Public Co. Ltd. (Diversified Banks)(f)                                1,574
                                                                                              --------
              UNITED KINGDOM (13.4%)
    71,900    AstraZeneca plc (Pharmaceuticals)(f)                                               3,305
   302,551    BP plc (Oil & Gas Exploration & Production)(f)                                     3,323
   363,495    Diageo plc (Distillers & Vintners)(f)                                              5,234
    94,200    GlaxoSmithKline plc (Pharmaceuticals)(f)                                           2,332
 1,046,800    Hilton Group plc (Casinos & Gaming)(f)                                             6,019
   135,400    Next plc (Apparel Retail)(f)                                                       3,221
   386,500    Reckitt Benckiser plc (Household Products)(f)                                     11,912
   251,100    Smith & Nephew plc (Health Care Equipment)(f)                                      2,234
   775,100    Tesco plc (Food Retail)(f)                                                         4,055
 1,004,900    Vodafone Group plc (Wireless Telecommunication Services)(f)                        2,158
   397,200    William Hill plc (Casinos & Gaming)(f)                                             3,476
                                                                                              --------
                                                                                                47,269
                                                                                              --------
              Total international stocks (cost: $155,110)                                      209,597
                                                                                              --------
              U.S. STOCKS (36.6%)

              BIOTECHNOLOGY (1.1%)
    78,100    Gilead Sciences, Inc.*                                                             3,959
                                                                                              --------

              COMPUTER HARDWARE (1.3%)
   146,900    Dell, Inc.*                                                                        4,430
                                                                                              --------



14

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==================--------------------------------------------------------------
                   of INVESTMENTS
                   (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)



                                                                                                MARKET
    NUMBER                                                                                       VALUE
 OF SHARES     SECURITY                                                                          (000)
- ------------------------------------------------------------------------------------------------------
                                                                                        
               CONSUMER FINANCE (1.8%)
   122,800     American Express Co.                                                           $  6,314
                                                                                              --------
               DATA PROCESSING & OUTSOURCED SERVICES (1.3%)
    78,500     DST Systems, Inc.*                                                                4,668
                                                                                              --------
               HEALTH CARE EQUIPMENT (3.4%)
    78,300     Fisher Scientific International, Inc.*                                            5,048
    46,300     Medtronic, Inc.                                                                   2,573
   108,000     Waters Corp.*                                                                     4,237
                                                                                              --------
                                                                                                11,858
                                                                                              --------
               HEALTH CARE SUPPLIES (0.8%)
    50,300     DENTSPLY International, Inc.                                                      2,798
                                                                                              --------
               HOME IMPROVEMENT RETAIL (0.7%)
    60,500     Home Depot, Inc.                                                                  2,528
                                                                                              --------
               HOUSEHOLD PRODUCTS (2.0%)
    33,400     Colgate-Palmolive Corp.                                                           1,821
    91,637     Procter & Gamble Co.                                                              5,241
                                                                                              --------
                                                                                                 7,062
                                                                                              --------
               HYPERMARKETS & SUPER CENTERS (1.1%)
    77,100     Wal-Mart Stores, Inc.                                                             3,744
                                                                                              --------
               INDUSTRIAL CONGLOMERATES (1.1%)
    49,000     3M Co.                                                                            3,846
                                                                                              --------
               INDUSTRIAL GASES (1.1%)
    72,300     Praxair, Inc.                                                                     3,760
                                                                                              --------
               INTEGRATED OIL & GAS (1.3%)
    77,600     Chevron Corp.                                                                     4,447
                                                                                              --------
               INVESTMENT BANKING & BROKERAGE (1.8%)
    48,900     Goldman Sachs Group, Inc.                                                         6,306
                                                                                              --------



                                                                              15

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==================--------------------------------------------------------------
                   of INVESTMENTS
                   (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)



                                                                                                MARKET
    NUMBER                                                                                       VALUE
 OF SHARES     SECURITY                                                                          (000)
- ------------------------------------------------------------------------------------------------------
                                                                                        
               IT CONSULTING & OTHER SERVICES (1.7%)
   206,100     Accenture Ltd. "A"                                                             $  5,861
                                                                                              --------
               LIFE & HEALTH INSURANCE (0.6%)
    42,800     Lincoln National Corp.                                                            2,225
                                                                                              --------
               MOTORCYCLE MANUFACTURERS (1.3%)
    84,900     Harley-Davidson, Inc.                                                             4,573
                                                                                              --------
               MOVIES & ENTERTAINMENT (3.3%)
   162,700     Viacom, Inc. "B"                                                                  5,434
   250,700     Walt Disney Co.                                                                   6,250
                                                                                              --------
                                                                                                11,684
                                                                                              --------
               OIL & GAS DRILLING (0.9%)
    42,700     Noble Corp.                                                                       3,077
                                                                                              --------
               OTHER DIVERSIFIED FINANCIAL SERVICES (0.8%)
    57,000     Citigroup, Inc.                                                                   2,767
                                                                                              --------
               PERSONAL PRODUCTS (1.0%)
   112,800     Estee Lauder Companies, Inc. "A"                                                  3,724
                                                                                              --------
               PHARMACEUTICALS (3.7%)
   119,700     Eli Lilly and Co.                                                                 6,045
   113,300     Johnson & Johnson                                                                 6,996
                                                                                              --------
                                                                                                13,041
                                                                                              --------
               SEMICONDUCTORS (1.2%)
   165,200     Intel Corp.                                                                       4,408
                                                                                              --------
               SOFT DRINKS (0.8%)
    47,400     PepsiCo, Inc.                                                                     2,806
                                                                                              --------
               SYSTEMS SOFTWARE (2.5%)
   495,300     Oracle Corp.*                                                                     6,226
   148,200     Symantec Corp.*                                                                   2,619
                                                                                              --------
                                                                                                 8,845
                                                                                              --------
               Total U.S. stocks (cost: $117,667)                                              128,731
                                                                                              --------



16

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==================--------------------------------------------------------------
                   of INVESTMENTS
                   (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)



 PRINCIPAL                                                                                      MARKET
    AMOUNT                                                                                       VALUE
     (000)     SECURITY                                                                          (000)
- ------------------------------------------------------------------------------------------------------
                                                                                        
               MONEY MARKET INSTRUMENTS (3.1%)

               COMMERCIAL PAPER (3.1%)
               -----------------------
               AGRICULTURAL PRODUCTS (3.1%)
   $10,906     Cargill Inc., 4.01%, 12/01/2005(g,h) (cost: $10,906)                           $ 10,906
                                                                                              --------

               SHORT-TERM INVESTMENTS PURCHASED WITH CASH
               COLLATERAL FROM SECURITIES LOANED (9.6%)

               REPURCHASE AGREEMENTS (9.3%)(B)
    14,000     Credit Suisse First Boston, LLC, 4.02%, acquired on 11/30/2005 and due
                  12/01/2005 at $14,000 (collateralized by $14,560 of Federal
                  Home Loan Bank Bonds(d), 3.80%, due 9/30/2008; market value
                  $14,284)                                                                      14,000
    13,000     Deutsche Bank Securities, Inc., 4.00%, acquired on 11/30/2005
                  and due 12/01/2005 at $13,000 (collateralized by $5,795 of
                  Fannie Mae Notes(d), 6.00%, due 8/14/2023; $7,107 of Federal
                  Farm Credit Discount Notes(d), 4.11%(e), due 12/06/2005; and
                  $411 of Freddie Mac Notes(d), 2.30%, due 2/24/2006; combined
                  market value $13,260)                                                         13,000
     4,850     Lehman Brothers, Inc., 3.99%, acquired on 11/30/2005 and due
                  12/01/2005 at $4,850 (collateralized by $8,100 of Freddie Mac
                  Notes(d), 5.58%(e), due 11/05/2014; market value $4,950)                       4,850
     1,000     Morgan Stanley & Co., Inc., 4.02%, acquired on 11/30/2005
                  and due 12/01/2005 at $1,000 (collateralized by $1,035 of
                  Fannie Mae Notes(d), 4.00%, due 5/23/2007; market value $1,025)                1,000
                                                                                              --------
                                                                                                32,850
                                                                                              --------


    NUMBER
 OF SHARES
- ----------
                                                                                        
               MONEY MARKET FUNDS (0.3%)
   817,616     AIM Short-Term Investment Co. Liquid Assets Portfolio, 4.00%(c)                     818
   122,560     Merrill Lynch Premier Institutional Fund, 3.91%(c)                                  122
                                                                                              --------
                                                                                                   940
                                                                                              --------
               Total short-term investments purchased with cash collateral from
                  securities loaned (cost: $33,790)                                             33,790
                                                                                              --------

               TOTAL INVESTMENTS (COST: $317,473)                                             $383,024
                                                                                              ========



                                                                              17

 N O T E S
==========----------------------------------------------------------------------
           to Portfolio of INVESTMENTS

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

GENERAL NOTES
- --------------------------------------------------------------------------------

         Market values of securities are determined by procedures and practices
         discussed in Note 1 to the financial statements.

         The portfolio of investments category percentages shown represent the
         percentages of the investments to net assets and, in total, may not
         equal 100%.

         ADR - American depositary receipts are receipts issued by a U.S. bank
         evidencing ownership of foreign shares. Dividends are paid in U.S.
         dollars.

         GDR - Global depositary receipts are receipts issued by a U.S. or
         foreign bank evidencing ownership of foreign shares. Dividends are paid
         in U.S. dollars.

SPECIFIC NOTES
- --------------------------------------------------------------------------------

         (a) The security or a portion thereof was out on loan as of November
             30, 2005.

         (b) Collateral on repurchase agreements is received by the Fund upon
             entering into the repurchase agreement. The collateral is marked-
             to-market daily to ensure its market value is equal to or in excess
             of the repurchase agreement price plus accrued interest.

         (c) Rate represents the money market fund annualized seven-day yield at
             November 30, 2005.

         (d) U.S. government agency issues. Securities issued by government-
             sponsored enterprises (GSEs) are supported only by the credit of
             the issuing agency, instrumentality, or corporation, and are
             neither issued nor guaranteed by the U.S. government.

         (e) Zero-coupon security. Rate represents the effective yield at date
             of purchase.


18

 N O T E S
==========----------------------------------------------------------------------
           to Portfolio of INVESTMENTS
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

         (f) Security was fair valued at November 30, 2005, by USAA Investment
             Management Company (the Manager) in accordance with valuation
             procedures approved by the Board of Directors.

         (g) Restricted security that is not registered under the Securities Act
             of 1933. A resale of this security in the United States may occur
             in an exempt transaction to a qualified institutional buyer as
             defined by Rule 144A, and as such has been deemed liquid by USAA
             Investment Management Company (the Manager) under liquidity
             guidelines approved by the Board of Directors, unless otherwise
             noted as illiquid.

         (h) Commercial paper issued in reliance on the "private placement"
             exemption from registration afforded by Section 4(2) of the
             Securities Act of 1933. Unless this commercial paper is
             subsequently registered, a resale of this commercial paper in the
             United States must be effected in a transaction exempt from
             registration under the Securities Act of 1933. Section 4(2)
             commercial paper is normally resold to other investors through or
             with the assistance of the issuer or an investment dealer who makes
             a market in this security, and as such has been deemed liquid by
             USAA Investment Management Company (the Manager) under liquidity
             guidelines approved by the Board of Directors, unless otherwise
             noted as illiquid.

         *   Non-income-producing security for the 12 months preceding November
             30, 2005.

         SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                                                                              19

 S T A T E M E N T
==================--------------------------------------------------------------
                   of ASSETS and LIABILITIES
                   (in thousands)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)


                                                                       
ASSETS
  Investments in securities, at market value (including securities
     on loan of $30,683) (identified cost of $317,473)                    $383,024
  Cash                                                                           8
  Cash denominated in foreign currencies (identified cost of $30)               28
  Receivables:
     Capital shares sold                                                       161
     Dividends and interest                                                    596
     Securities sold                                                         5,853
     Other                                                                       8
                                                                          --------
        Total assets                                                       389,678
                                                                          --------
LIABILITIES
  Payables:
     Upon return of securities loaned                                       33,797
     Securities purchased                                                    3,616
     Capital shares redeemed                                                   110
  Unrealized depreciation on foreign currency contracts held, at value           4
  Accrued management fees                                                      216
  Accrued transfer agent's fees                                                  3
  Other accrued expenses and payables                                           51
                                                                          --------
        Total liabilities                                                   37,797
                                                                          --------
           Net assets applicable to capital shares outstanding            $351,881
                                                                          ========
NET ASSETS CONSIST OF:
  Paid-in capital                                                         $255,642
  Accumulated undistributed net investment income                            1,684
  Accumulated net realized gain on investments                              29,018
  Net unrealized appreciation of investments                                65,551
  Net unrealized depreciation on foreign currency translations                 (14)
                                                                          --------
           Net assets applicable to capital shares outstanding            $351,881
                                                                          ========
  Capital shares outstanding, unlimited number of shares authorized,
     no par value                                                           18,749
                                                                          ========

  Net asset value, redemption price, and offering price per share         $  18.77
                                                                          ========


  SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


20

 S T A T E M E N T
==================--------------------------------------------------------------
                   of OPERATIONS
                   (in thousands)

USAA WORLD GROWTH FUND
SIX-MONTH PERIOD ENDED NOVEMBER 30, 2005 (UNAUDITED)


                                                                       
INVESTMENT INCOME
  Dividends (net of foreign taxes withheld of $86)                        $ 2,201
  Interest                                                                    145
  Securities lending                                                           37
                                                                          -------
     Total income                                                           2,383
                                                                          -------
EXPENSES
  Management fees                                                           1,287
  Administration and servicing fees                                           257
  Transfer agent's fees                                                       425
  Custody and accounting fees                                                 108
  Postage                                                                      51
  Shareholder reporting fees                                                   14
  Trustees' fees                                                                4
  Registration fees                                                            18
  Professional fees                                                            28
  Other                                                                         7
                                                                          -------
     Total expenses                                                         2,199
  Expenses paid indirectly                                                    (24)
                                                                          -------
     Net expenses                                                           2,175
                                                                          -------
NET INVESTMENT INCOME                                                         208
                                                                          -------
NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
AND FOREIGN CURRENCY

  Net realized gain (loss) on:
     Investments                                                           14,189
     Foreign currency transactions                                            (85)
  Change in net unrealized appreciation/depreciation of:
     Investments                                                            8,492
     Foreign currency translations                                             13
                                                                          -------
        Net realized and unrealized gain                                   22,609
                                                                          -------
  Increase in net assets resulting from operations                        $22,817
                                                                          =======


  SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                                                                              21

 S T A T E M E N T S
====================------------------------------------------------------------
                     of Changes in NET ASSETS
                     (in thousands)

USAA WORLD GROWTH FUND
SIX-MONTH PERIOD ENDED NOVEMBER 30, 2005 (UNAUDITED), AND YEAR ENDED
MAY 31, 2005



                                                              11/30/2005      5/31/2005
                                                              -------------------------
                                                                         
FROM OPERATIONS
  Net investment income                                         $    208       $  1,559
  Net realized gain on investments                                14,189         23,455
  Net realized loss on foreign currency transactions                 (85)           (33)
  Change in net unrealized appreciation/depreciation of:
     Investments                                                   8,492          8,048
     Foreign currency translations                                    13            (41)
                                                                -----------------------
     Increase in net assets resulting from operations             22,817         32,988
                                                                -----------------------
DISTRIBUTIONS TO SHAREHOLDERS FROM:
  Net investment income                                                -         (1,517)
  Net realized gains                                                   -         (5,663)
                                                                -----------------------
     Distributions to shareholders                                     -         (7,180)
                                                                -----------------------
FROM CAPITAL SHARE TRANSACTIONS
  Proceeds from shares sold                                       20,533         45,314
  Reinvested dividends                                                 -          7,049
  Cost of shares redeemed                                        (22,261)       (36,011)
                                                                -----------------------
     Increase (decrease) in net assets from capital share
        transactions                                              (1,728)        16,352
                                                                -----------------------
  Capital contribution from USAA Transfer Agency Company               -              3
                                                                -----------------------
  Net increase in net assets                                      21,089         42,163

NET ASSETS
  Beginning of period                                            330,792        288,629
                                                                -----------------------
  End of period                                                 $351,881       $330,792
                                                                =======================
Accumulated undistributed net investment income:
  End of period                                                 $  1,684       $  1,476
                                                                =======================
CHANGE IN SHARES OUTSTANDING
  Shares sold                                                      1,120          2,626
  Shares issued for dividends reinvested                               -            398
  Shares redeemed                                                 (1,219)        (2,109)
                                                                -----------------------
     Increase in shares outstanding                                  (99)           915
                                                                =======================


  SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


22

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           to FINANCIAL Statements

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
- --------------------------------------------------------------------------------

         USAA INVESTMENT TRUST (the Trust), registered under the Investment
         Company Act of 1940 (the 1940 Act), as amended, is an open-end
         management investment company organized as a Massachusetts business
         trust consisting of 10 separate funds. The information presented in
         this semiannual report pertains only to the USAA World Growth Fund (the
         Fund), which is classified as diversified under the 1940 Act. The
         Fund's investment objective is capital appreciation.

           A. SECURITY VALUATION - The value of each security is determined (as
              of the close of trading on the New York Stock Exchange (NYSE) on
              each business day the exchange is open) as set forth below:

              1. Equity securities, including exchange-traded funds (ETFs),
                 except as otherwise noted, traded primarily on a domestic
                 securities exchange or the Nasdaq over-the-counter markets are
                 valued at the last sales price or official closing price on the
                 exchange or primary market on which they trade. Equity
                 securities traded primarily on foreign securities exchanges or
                 markets are valued at the last quoted sales price, or the most
                 recently determined official price calculated according to
                 local market convention, available at the time the Fund is
                 valued. If no last sale or official closing price is reported
                 or available, the average of the bid and asked prices is
                 generally used.

              2. Equity securities trading in various foreign markets may take
                 place on days when the NYSE is closed. Further, when the NYSE
                 is open, the foreign markets may be closed. Therefore, the
                 calculation of the Fund's net asset value (NAV) may not take
                 place at the same time the prices of certain foreign securities
                 held by the Fund are determined. In most cases, events
                 affecting the values of foreign securities that occur between
                 the time of their last quoted sales or official closing


                                                                              23

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==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

                 prices and the close of normal trading on the NYSE on a day the
                 Fund's NAV is calculated will not be reflected in the value of
                 the Fund's foreign securities. However, USAA Investment
                 Management Company (the Manager), an affiliate of the Fund, and
                 the Fund's subadviser, if applicable, will monitor for events
                 that would materially affect the value of the Fund's foreign
                 securities and, if necessary, the Manager will value the
                 foreign securities in good faith, considering such available
                 information that the Manager deems relevant, under valuation
                 procedures approved by the Trust's Board of Trustees. In
                 addition, the Fund may use information from an external vendor
                 or other sources to adjust the foreign market closing prices of
                 foreign equity securities to reflect what the Fund believes to
                 be the fair value of the securities as of the close of the
                 NYSE. Fair valuation of affected foreign equity securities may
                 occur frequently based on an assessment that events that occur
                 on a fairly regular basis (such as U.S. market movements) are
                 significant.

              3. Investments in open-end investment companies, other than ETFs,
                 are valued at their NAV at the end of each business day.

              4. Debt securities purchased with original maturities of 60 days
                 or less are valued at amortized cost, which approximates market
                 value. Repurchase agreements are valued at cost.

              5. Securities for which market quotations are not readily
                 available or are considered unreliable, or whose values have
                 been materially affected by events occurring after the close of
                 their primary markets but before the pricing of the Fund, are
                 valued in good faith at fair value, using methods determined by
                 the Manager in consultation with the Fund's subadviser, if
                 applicable, under valuation procedures approved by the Trust's
                 Board of Trustees. The effect of fair value pricing is that
                 securities may not be priced on the basis of quotations


24

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==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

                 from the primary market in which they are traded, and the
                 actual price realized from the sale of a security may differ
                 materially from the fair value price. Valuing these securities
                 at fair value is intended to cause the Fund's NAV to be more
                 reliable than it otherwise would be.

                 Fair value methods used by the Manager include, but are not
                 limited to, obtaining market quotations from secondary pricing
                 services, broker-dealers, or widely used quotation systems.
                 General factors considered in determining the fair value of
                 securities include fundamental analytical data, the nature and
                 duration of any restrictions on disposition of the securities,
                 and an evaluation of the forces that influenced the market in
                 which the securities are purchased and sold.

           B. FEDERAL TAXES - The Fund's policy is to comply with the
              requirements of the Internal Revenue Code applicable to regulated
              investment companies and to distribute substantially all of its
              income to its shareholders. Therefore, no federal income tax
              provision is required.

           C. INVESTMENTS IN SECURITIES - Security transactions are accounted
              for on the date the securities are purchased or sold (trade date).
              Gains or losses from sales of investment securities are computed
              on the identified cost basis. Dividend income, less foreign taxes,
              if any, is recorded on the ex-dividend date. If the ex-dividend
              date has passed, certain dividends from foreign securities are
              recorded upon notification. Interest income is recorded on the
              accrual basis. Discounts and premiums on short-term securities are
              amortized on a straight-line basis over the life of the respective
              securities.

           D. REPURCHASE AGREEMENTS - The Fund may enter into repurchase
              agreements with commercial banks or recognized security dealers.
              These agreements are collateralized by obligations issued or
              guaranteed as to both principal and interest by the U.S.
              government, its agencies, or its instrumentalities.


                                                                              25

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

              Government-sponsored enterprises (GSEs), such as Fannie Mae and
              Freddie Mac, are supported only by the credit of the issuing U.S.
              government agency, and are neither issued nor guaranteed by the
              U.S. government. Obligations pledged as collateral are required to
              maintain a value equal to or in excess of the repurchase agreement
              price plus accrued interest and are held by the Fund, either
              through its regular custodian or through a special "tri-party"
              custodian that maintains separate accounts for both the Fund and
              its counterparty, until maturity of the repurchase agreement. The
              Fund's Manager monitors the creditworthiness of sellers with which
              the Fund may enter into repurchase agreements.

           E. FOREIGN CURRENCY TRANSLATIONS - The Fund's assets may be invested
              in the securities of foreign issuers and may be traded in foreign
              currency. Since the Fund's accounting records are maintained in
              U.S. dollars, foreign currency amounts are translated into U.S.
              dollars on the following basis:

              1. Purchases and sales of securities, income, and expenses at the
                 rate of exchange obtained from an independent pricing service
                 on the respective dates of such transactions.

              2. Market value of securities, other assets, and liabilities at
                 the exchange rate obtained from an independent pricing service
                 on a daily basis.

              The Fund does not isolate that portion of the results of
              operations resulting from changes in foreign exchange rates on
              investments from the fluctuations arising from changes in market
              prices of securities held. Such fluctuations are included with the
              net realized and unrealized gain or loss from investments.

              Separately, net realized foreign currency gains/losses may arise
              from sales of foreign currency, currency gains/losses realized
              between the trade and settlement dates on security transactions,
              and from the difference between amounts of dividends, interest,


26

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==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

              and foreign withholding taxes recorded on the Fund's books and the
              U.S. dollar equivalent of the amounts received. At the Fund's tax
              year-end of May 31, 2006, net realized foreign currency
              gains/losses will be reclassified from accumulated net realized
              gain/loss to accumulated undistributed net investment income on
              the statement of assets and liabilities as such amounts are
              treated as ordinary income/loss for tax purposes. Net unrealized
              foreign currency exchange gains/losses arise from changes in the
              value of assets and liabilities, other than investments in
              securities, resulting from changes in the exchange rate.

           F. EXPENSES PAID INDIRECTLY - A portion of the brokerage commissions
              that the Fund pays may be recaptured as a credit that is tracked
              and used by the custodian to directly reduce expenses paid by the
              Fund. In addition, through arrangements with the Fund's custodian
              and other banks utilized by the Fund for cash management purposes,
              realized credits, if any, generated from cash balances in the
              Fund's bank accounts are used to reduce the Fund's expenses. For
              the six-month period ended November 30, 2005, brokerage commission
              recapture credits and custodian and other bank credits reduced the
              Fund's expenses by $23,000 and $1,000, respectively, resulting in
              a total reduction in Fund expenses of $24,000.

           G. INDEMNIFICATIONS - Under the Trust's organizational documents, its
              officers and trustees are indemnified against certain liabilities
              arising out of the performance of their duties to the Trust. In
              addition, in the normal course of business the Trust enters into
              contracts that contain a variety of representations and warranties
              that provide general indemnifications. The Trust's maximum
              exposure under these arrangements is unknown, as this would
              involve future claims that may be made against the Trust that have
              not yet occurred. However, the Trust expects the risk of loss to
              be remote.


                                                                              27

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

           H. USE OF ESTIMATES - The preparation of financial statements in
              conformity with U.S. generally accepted accounting principles
              requires management to make estimates and assumptions that may
              affect the reported amounts in the financial statements.

(2) LINES OF CREDIT
- --------------------------------------------------------------------------------

         The Fund participates in a joint, short-term, revolving, committed loan
         agreement of $300 million with USAA Capital Corporation (CAPCO), an
         affiliate of the Manager. The purpose of the agreement is to meet
         temporary or emergency cash needs, including redemption requests that
         might otherwise require the untimely disposition of securities. Subject
         to availability under the agreement, the Fund may borrow from CAPCO an
         amount up to 5% of the Fund's total assets at a rate per annum equal to
         the rate at which CAPCO obtains funding in the capital markets, with no
         markup.

         The USAA funds that are party to the loan agreement are assessed
         facility fees by CAPCO based on the funds' assessed proportionate share
         of CAPCO's operating expenses related to obtaining and maintaining
         CAPCO's funding programs in total (in no event to exceed 0.09% annually
         of the $300 million loan agreement). The facility fees are allocated
         among the funds based on their respective average net assets for the
         period.

         For the six-month period ended November 30, 2005, the Fund paid CAPCO
         facility fees of less than $500, which represents 1.1% of total fees
         paid to CAPCO by the USAA funds. The Fund had no borrowings under this
         agreement during the six-month period ended November 30, 2005.

(3) DISTRIBUTIONS
- --------------------------------------------------------------------------------

         The tax basis of distributions and accumulated undistributed net
         investment income will be determined based upon the Fund's tax year-end
         of May 31, 2006, in accordance with applicable tax law.


28

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

         Distributions of net investment income and realized gains from security
         transactions not offset by capital losses are made annually in the
         succeeding fiscal year or as otherwise required to avoid the payment of
         federal taxes.

(4) INVESTMENT TRANSACTIONS
- --------------------------------------------------------------------------------

         Cost of purchases and proceeds from sales of securities, excluding
         short-term securities, for the six-month period ended November 30,
         2005, were $71,148,000 and $77,358,000, respectively.

         As of November 30, 2005, the cost of securities, including short-term
         securities, for federal income tax purposes, was approximately the same
         as that reported in the financial statements.

         Gross unrealized appreciation and depreciation of investments as of
         November 30, 2005, were $70,484,000 and $4,933,000, respectively,
         resulting in net unrealized appreciation of $65,551,000.

(5) FOREIGN CURRENCY CONTRACTS
- --------------------------------------------------------------------------------

         A forward currency contract (currency contract) is a commitment to
         purchase or sell a foreign currency at a specified date, at a
         negotiated price. The Fund may enter into currency contracts in
         connection with the purchase or sale of a security denominated in a
         foreign currency. These contracts allow the Fund to "lock in" the U.S.
         dollar price of the security. The Fund may also enter into currency
         contracts to hedge against foreign currency exchange risks on the
         non-U.S. dollar denominated securities held in the Fund's portfolio.
         Currency contracts are valued on a daily basis using foreign currency
         exchange rates obtained from an independent pricing service. Risks of
         entering into currency contracts include the potential inability of the
         counterparty to meet the terms of the contract and the Fund's giving up
         the opportunity for potential profit.


                                                                              29

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==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

         At November 30, 2005, the terms of open foreign currency contracts were
         as follows (in thousands):



                               FOREIGN CURRENCY CONTRACTS TO BUY
- --------------------------------------------------------------------------------------------------
                                          U.S. DOLLAR                                 UNREALIZED
 EXCHANGE             CONTRACTS TO        VALUE AS OF          IN EXCHANGE           APPRECIATION
   DATE                 RECEIVE           11/30/2005         FOR U.S. DOLLAR        (DEPRECIATION)
- --------------------------------------------------------------------------------------------------
                                                                             
12/01/2005                431                $328                 $331                   $(3)
                      Swiss Franc
12/01/2005                710                 540                  540                     -
                      Swiss Franc
- --------------------------------------------------------------------------------------------------
                                             $868                 $871                   $(3)
- --------------------------------------------------------------------------------------------------


                               FOREIGN CURRENCY CONTRACTS TO SELL
- --------------------------------------------------------------------------------------------------
                                          U.S. DOLLAR                                 UNREALIZED
 EXCHANGE             CONTRACTS TO        VALUE AS OF          IN EXCHANGE           APPRECIATION
   DATE                 DELIVER           11/30/2005         FOR U.S. DOLLAR        (DEPRECIATION)
- --------------------------------------------------------------------------------------------------
                                                                             
12/01/2005                 1               $    1               $    1                   $ -
                          Euro
12/01/2005                3,222                27                   27                     -
                      Japanese Yen
12/01/2005                 19                  11                   11                     -
                    Singapore Dollar
12/02/2005                 42                  36                   36                     -
                    Canadian Dollar
12/05/2005                263                 310                  310                     -
                          Euro
12/05/2005                717               1,240                1,240                     -
                    Pound Sterling
12/05/2005               7,346                910                  909                    (1)
                     Swedish Krona
- --------------------------------------------------------------------------------------------------
                                           $2,535               $2,534                   $(1)
- --------------------------------------------------------------------------------------------------


(6) LENDING OF PORTFOLIO SECURITIES
- --------------------------------------------------------------------------------

         The Fund, through its third-party securities-lending agent,
         Metropolitan West Securities LLC (MetWest), may lend its securities to
         qualified financial institutions, such as certain broker-dealers, to
         earn additional


30

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

         income. The borrowers are required to secure their loans continuously
         with cash collateral in an amount at least equal to the fair value of
         the securities loaned, initially in an amount at least equal to 102% of
         the fair value of domestic securities loaned and 105% of the fair value
         of international securities loaned. Cash collateral is invested in
         high-quality short-term investments. The Fund and MetWest retain 80%
         and 20%, respectively, of the income earned from the investment of cash
         received as collateral. MetWest receives no other fees from the Fund
         for its services as securities-lending agent. Risks to the Fund in
         securities-lending transactions are that the borrower may not provide
         additional collateral when required or return the securities when due,
         and that the value of the short-term investments will be less than the
         amount of cash collateral required to be returned to the borrower. For
         the six-month period ended November 30, 2005, the Fund received
         securities-lending income of $37,000, which is net of the 20% income
         retained by MetWest. As of November 30, 2005, the Fund loaned
         securities having a fair market value of approximately $30,683,000 and
         received cash collateral of $33,797,000 for the loans. Of this amount,
         $33,790,000 was invested in short-term investments, as noted in the
         Fund's portfolio of investments, and $7,000 remained in cash.

(7) TRANSACTIONS WITH MANAGER
- --------------------------------------------------------------------------------

              A. MANAGEMENT FEES - The Manager provides investment management
                 services to the Fund pursuant to an Investment Advisory
                 Agreement. Under this agreement, the Manager is responsible for
                 managing the business and affairs of the Fund, subject to the
                 authority of and supervision by the Trust's Board of Trustees.
                 The Manager is authorized to select (with approval of the
                 Trust's Board of Trustees) one or more subadvisers to manage
                 the actual day-to-day investment of the Fund's assets. The
                 Manager monitors each subadviser's performance through
                 quantitative and qualitative analysis, and periodically
                 recommends to the Trust's Board of Trustees as to whether each
                 subadviser's


                                                                              31

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

                 agreement should be renewed, terminated, or modified. The
                 Manager also is responsible for allocating assets to the
                 subadvisers. The allocation for each subadviser can range from
                 0% to 100% of the Fund's assets, and the Manager can change the
                 allocations without shareholder approval.

                 The investment management fee for the Fund is composed of a
                 base fee and a performance adjustment that increases or
                 decreases the base fee depending upon the performance of the
                 Fund relative to the performance of the Lipper Global Funds
                 Index, which tracks the total return performance of the 30
                 largest funds in the Lipper Global Funds category. The Fund's
                 base fee is accrued daily and paid monthly at an annualized
                 rate of 0.75% of the Fund's average net assets for the fiscal
                 year.

                 The performance adjustment is calculated monthly by comparing
                 the Fund's performance to that of the Lipper index over the
                 performance period. The performance period for the Fund
                 consists of the current month plus the previous 35 months.

                 The annual performance adjustment rate is multiplied by the
                 average net assets of the Fund over the entire performance
                 period, which is then multiplied by a fraction, the numerator
                 of which is the number of days in the month and the denominator
                 of which is 365 (366 in leap years). The resulting amount is
                 then added to (in the case of overperformance) or subtracted
                 from (in the case of underperformance) the base fee, as
                 referenced in the following chart:



OVER/UNDER PERFORMANCE                ANNUAL ADJUSTMENT RATE
RELATIVE TO INDEX(1)                  AS A % OF THE FUND'S AVERAGE NET ASSETS
- -----------------------------------------------------------------------------
                                   
+/- 1.00% to 4.00%                    +/- 0.04%
+/- 4.01% to 7.00%                    +/- 0.05%
+/- 7.01% and greater                 +/- 0.06%


(1)Based on the difference between average annual performance of the Fund and
   its relevant index, rounded to the nearest 0.01%.


32

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

                 Under the performance fee arrangement, the Fund will pay a
                 positive performance fee adjustment for a performance period
                 whenever the Fund outperforms the Lipper Global Funds Index
                 over that period, even if the Fund had overall negative returns
                 during the performance period.

                 For the six-month period ended November 30, 2005, the Fund
                 incurred total management fees, paid or payable to the Manager,
                 of $1,287,000, which included no performance adjustment.

              B. SUBADVISORY ARRANGEMENTS - The Manager has entered into an
                 investment subadvisory agreement with MFS Investment Management
                 (MFSIM), under which MFSIM directs the investment and
                 reinvestment of the Fund's assets (as allocated from time to
                 time by the Manager). The Manager (not the Fund) pays MFSIM a
                 subadvisory fee in the annual amount of 0.335% of the first
                 $350 million of the aggregate average net assets of the USAA
                 World Growth Fund, the USAA International Fund, the USAA Life
                 Investment Trust World Growth Fund, and the portion of the USAA
                 Cornerstone Strategy Fund that MFSIM manages (MFSIM Funds),
                 plus 0.225% of the aggregate average net assets of the MFSIM
                 Funds over $350 million but not over $1 billion, plus 0.200% of
                 the aggregate average net assets of the MFSIM Funds over $1
                 billion. Effective January 1, 2006, the Manager (not the Fund)
                 will pay MFSIM a subadvisory fee in the annual amount of 0.29%
                 of the aggregate average net assets of the MFSIM Funds. For the
                 six-month period ended November 30, 2005, the Manager incurred
                 subadvisory fees, paid or payable to MFSIM, of $1,729,000 for
                 the MFSIM Funds in total, of which $421,000 was based on the
                 average net assets of the USAA World Growth Fund.

              C. ADMINISTRATION AND SERVICING FEES - The Manager provides
                 certain administration and shareholder servicing functions for
                 the Fund. For such services, the Manager receives a fee accrued
                 daily and


                                                                              33

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

                 paid monthly at an annualized rate of 0.15% of the Fund's
                 average net assets. For the six-month period ended November 30,
                 2005, the Fund incurred administration and servicing fees, paid
                 or payable to the Manager, of $257,000.

                 In addition to the services provided under its Administration
                 and Servicing Agreement with the Fund, the Manager also
                 provides certain legal and tax services for the benefit of the
                 Fund. The Trust's Board of Trustees has approved the
                 reimbursement of these expenses incurred by the Manager. For
                 the six-month period ended November 30, 2005, the Fund
                 reimbursed the Manager $10,000 for these legal and tax
                 services. These expenses are included in the professional fees
                 expenses on the Fund's statement of operations.

              D. TRANSFER AGENT'S FEES - USAA Transfer Agency Company, d/b/a
                 USAA Shareholder Account Services (SAS), an affiliate of the
                 Manager, provides transfer agent services to the Fund based on
                 an annual charge of $23 per shareholder account plus out-of-
                 pocket expenses. The Fund also pays SAS fees that are related
                 to the administration and servicing of accounts that are traded
                 on an omnibus basis. For the six-month period ended November
                 30, 2005, the Fund incurred transfer agent's fees, paid or
                 payable to SAS, of $425,000.

              E. UNDERWRITING SERVICES - The Manager provides exclusive
                 underwriting and distribution of the Fund's shares on a
                 continuing best-efforts basis. The Manager receives no
                 commissions or fees for this service.

(8) TRANSACTIONS WITH AFFILIATES
- --------------------------------------------------------------------------------

         Certain trustees and officers of the Fund are also directors, officers,
         and/or employees of the Manager. None of the affiliated trustees or
         Fund officers received any compensation from the Fund.


34

 N O T E S
==========----------------------------------------------------------------------
           to FINANCIAL Statements
           (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

(9) FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

Per share operating performance for a share outstanding throughout each period
is as follows:



                                        SIX-MONTH
                                      PERIOD ENDED
                                      NOVEMBER 30,                              YEAR ENDED MAY 31,
                                      ----------------------------------------------------------------------------------------
                                          2005            2005            2004            2003            2002            2001
                                      ----------------------------------------------------------------------------------------
                                                                                                    
Net asset value at
  beginning of period                 $  17.55        $  16.09        $  13.02        $  14.42        $  15.90        $  20.61
                                      ----------------------------------------------------------------------------------------
Income (loss) from investment operations:
  Net investment income                    .01             .08             .08             .04             .03             .07
  Net realized and
    unrealized gain (loss)                1.21            1.78            3.03           (1.39)          (1.43)          (3.70)
                                      ----------------------------------------------------------------------------------------
Total from investment operations          1.22            1.86            3.11           (1.35)          (1.40)          (3.63)
                                      ----------------------------------------------------------------------------------------
Less distributions:
  From net investment income                 -            (.08)           (.04)           (.05)           (.07)           (.07)
  From realized capital gains                -            (.32)              -               -            (.01)          (1.01)
                                      ----------------------------------------------------------------------------------------
  Total distributions                        -            (.40)           (.04)           (.05)           (.08)          (1.08)
                                      ----------------------------------------------------------------------------------------
Net asset value at end of period      $  18.77        $  17.55        $  16.09        $  13.02        $  14.42        $  15.90
                                      ========================================================================================
Total return (%)*                         6.95           11.54           23.87           (9.32)          (8.79)         (18.83)
Net assets at end of period (000)     $351,881        $330,792        $288,629        $231,337        $276,019        $320,269
Ratio of expenses to average
  net assets (%)**(b)                     1.28(a)         1.31            1.32            1.53            1.40            1.14
Ratio of net investment income to
  average net assets (%)**                 .12(a)          .50             .59             .35             .21             .41
Portfolio turnover (%)                   21.43           36.49           56.13          138.42           51.18           38.30

  * Assumes reinvestment of all net investment income and realized capital gain
    distributions during the period.
 ** For the six-month period ended November 30,
    2005, average net assets were $342,372,000.
(a) Annualized. The ratio is not necessarily indicative of 12 months of operations.
(b) Reflects total operating expenses of the Fund before reductions of any expenses
    paid indirectly. The Fund's expenses paid indirectly decreased the expense ratios
    as follows:
                                          (.01%)          (.01%)          (.02%)          (.00%)(+)       (.00%)(+)       (.00%)(+)
    (+) Represents less than 0.01% of average net assets.



                                                                              35

 E X P E N S E
==============------------------------------------------------------------------
               EXAMPLE

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

EXAMPLE
- --------------------------------------------------------------------------------

         As a shareholder of the Fund, you incur two types of costs: direct
         costs, such as wire fees, redemption fees, and low balance fees; and
         indirect costs, including management fees, transfer agency fees, and
         other Fund operating expenses. This example is intended to help you
         understand your indirect costs, also referred to as "ongoing costs" (in
         dollars), of investing in the Fund and to compare these costs with the
         ongoing costs of investing in other mutual funds.

         The example is based on an investment of $1,000 invested at the
         beginning of the period and held for the entire six-month period of
         June 1, 2005, through November 30, 2005.

ACTUAL EXPENSES
- --------------------------------------------------------------------------------

         The first line of the table on the next page provides information about
         actual account values and actual expenses. You may use the information
         in this line, together with the amount you invested at the beginning of
         the period, 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 "Expenses Paid During
         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


36

 E X P E N S E
==============------------------------------------------------------------------
               EXAMPLE
               (continued)

USAA WORLD GROWTH FUND
NOVEMBER 30, 2005 (UNAUDITED)

         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 other funds.

         Please note that the expenses shown in the table are meant to highlight
         your ongoing costs only and do not reflect any direct costs, such as
         wire fees, redemption fees, or low balance fees. 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 direct costs were included, your costs
         would have been higher.

         
         
                                                                                  EXPENSES PAID
                                      BEGINNING              ENDING               DURING PERIOD*
                                    ACCOUNT VALUE         ACCOUNT VALUE            JUNE 1, 2005-
                                    JUNE 1, 2005        NOVEMBER 30, 2005       NOVEMBER 30, 2005
                                    -------------------------------------------------------------
                                                                             
         Actual                       $1,000.00            $1,069.50                  $6.57

         Hypothetical
            (5% return before          1,000.00             1,018.72                   6.41
            expenses)
         

         *Expenses are equal to the Fund's annualized expense ratio of 1.27%,
          which is net of any expenses paid indirectly, multiplied by the
          average account value over the period, multiplied by 183 days/365 days
          (to reflect the one-half year period). The Fund's ending account value
          on the first line in the table is based on its actual total return of
          6.95% for the six-month period of June 1, 2005, through November 30,
          2005.


                                                                              37

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40

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                TRUSTEES      Christopher W. Claus
                              Barbara B. Dreeben
                              Robert L. Mason, Ph.D.
                              Michael F. Reimherr
                              Laura T. Starks, Ph.D.
                              Richard A. Zucker

          ADMINISTRATOR,      USAA Investment Management Company
     INVESTMENT ADVISER,      P.O. Box 659453
            UNDERWRITER,      San Antonio, Texas 78265-9825
         AND DISTRIBUTOR

          TRANSFER AGENT      USAA Shareholder Account Services
                              9800 Fredericksburg Road
                              San Antonio, Texas 78288

           CUSTODIAN AND      State Street Bank and Trust Company
        ACCOUNTING AGENT      P.O. Box 1713
                              Boston, Massachusetts 02105

             INDEPENDENT      Ernst & Young LLP
       REGISTERED PUBLIC      100 West Houston St., Suite 1800
         ACCOUNTING FIRM      San Antonio, Texas 78205

               TELEPHONE      Call toll free - Central time
        ASSISTANCE HOURS      Monday - Friday, 7 a.m. to 10 p.m.
                              Saturday, 8:30 a.m. to 5 p.m.
                              Sunday, 10:30 a.m. to 7 p.m.

          FOR ADDITIONAL      (800) 531-8181
       INFORMATION ABOUT      For account servicing, exchanges,
            MUTUAL FUNDS      or redemptions (800) 531-8448

         RECORDED MUTUAL      24-hour service (from any phone)
       FUND PRICE QUOTES      (800) 531-8066

             MUTUAL FUND      (from touch-tone phones only)
          USAA TOUCHLINE      For account balance, last transaction, fund
                              prices, or to exchange or redeem fund shares
                              (800) 531-8777

         INTERNET ACCESS      USAA.COM

COPIES OF THE MANAGER'S PROXY VOTING POLICIES AND PROCEDURES, APPROVED BY THE
TRUST'S BOARD OF TRUSTEES FOR USE IN VOTING PROXIES ON BEHALF OF THE FUND, ARE
AVAILABLE WITHOUT CHARGE (I) BY CALLING (800) 531-8448; (II) AT USAA.COM; AND
(III) ON THE SEC'S WEB SITE AT HTTP://WWW.SEC.GOV. INFORMATION REGARDING HOW THE
FUND VOTED PROXIES RELATING TO PORTFOLIO SECURITIES DURING THE MOST RECENT
12-MONTH PERIOD ENDED JUNE 30, IS AVAILABLE (I) AT USAA.COM; AND (II) ON THE
SEC'S WEB SITE AT HTTP://WWW.SEC.GOV.

THE FUND FILES ITS COMPLETE SCHEDULE OF PORTFOLIO HOLDINGS WITH THE SEC FOR THE
FIRST AND THIRD QUARTERS OF EACH FISCAL YEAR ON FORM N-Q. THESE FORMS N-Q ARE
AVAILABLE (I) BY CALLING (800) 531-8448; (II) AT USAA.COM; AND (III) ON THE
SEC'S WEB SITE AT HTTP://WWW.SEC.GOV. THESE FORMS N-Q ALSO MAY BE REVIEWED AND
COPIED AT THE SEC'S PUBLIC REFERENCE ROOM IN WASHINGTON, DC. INFORMATION ON THE
OPERATION OF THE PUBLIC REFERENCE ROOM MAY BE OBTAINED BY CALLING (800)
SEC-0330.

                                                        [LOGO OF RECYCLED PAPER]
                                                                        Recycled
                                                                           Paper


- --------------------------------------------------------------------------------

   [LOGO OF USAA]    9800 Fredericksburg Road                   -------------
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          [LOGO OF USAA]          WE KNOW WHAT IT MEANS TO SERVE.(R)
               USAA               ----------------------------------
                                     INSURANCE o MEMBER SERVICES

23412-0106                                   (C)2006, USAA. All rights reserved.


ITEM 2.  CODE OF ETHICS.

NOT APPLICABLE.  This item must be disclosed only in annual reports.



ITEM 3.  AUDIT COMMITTEE FINANCIAL EXPERT.

NOT APPLICABLE.  This item must be disclosed only in annual reports.



ITEM 4.  PRINCIPAL ACCOUNTANT FEES AND SERVICES.

NOT APPLICABLE.  This item must be disclosed only in annual reports.



ITEM 5.  AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not Applicable.



ITEM 6.  SCHEDULE OF INVESTMENTS.

Filed as part of the report to shareholders.



ITEM 7.  DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
MANAGEMENT INVESTMENT COMPANIES.

Not Applicable.



ITEM 8.  PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT
COMPANY AND AFFILIATED PURCHASERS.

Not Applicable.



ITEM 9.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

The  Corporate   Governance   Committee  selects  and  nominates  candidates for
membership  on the  Board  as  independent  directors.  Currently,  there  is no
procedure for shareholders to recommend candidates to serve on the Board.



ITEM 10.  CONTROLS AND PROCEDURES

The  principal  executive  officer  and  principal  financial  officer  of  USAA
Investment Trust (Trust) have concluded that the Trust's disclosure controls and
procedures are sufficient to ensure that information required to be disclosed by
the Trust in this Form N-CSR was recorded,  processed,  summarized  and reported
within the time periods  specified in the Securities  and Exchange  Commission's
rules and forms,  based upon such  officers'  evaluation  of these  controls and
procedures as of a date within 90 days of the filing date of the report.

There  were  no  significant  changes  or  corrective  actions  with  regard  to
significant deficiencies or material weaknesses in the Trust's internal controls
or in other  factors  that  could  significantly  affect  the  Trust's  internal
controls subsequent to the date of their evaluation. The only material change to
the  procedures  was to document the annual  disclosure  controls and procedures
established for the new section of the shareholder reports detailing the factors
considered by the Funds' Board in approving the Funds' advisory agreements.



ITEM 11.  EXHIBITS.

(a)(1). NOT APPLICABLE.  This item must be disclosed only in annual reports.

(a)(2). Certification pursuant to Rule 30a-2(a) under the Investment Company Act
        of 1940 (17 CFR 270.30a-2(a)) is filed and attached hereto as Exhibit
        99.CERT.

(a)(3). Not Applicable.

(b).    Certification pursuant to Rule 30a-2(b) under the Investment Company Act
        of 1940 (17 CFR 270.30a-2(b))is filed and attached hereto as Exhibit
        99.906CERT.




                                   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:  USAA INVESTMENT TRUST (except for the Total Return Strategy Fund)

By:*     /s/ EILEEN M. SMILEY
         -----------------------------------------------------------
         Signature and Title:  Eileen M. Smiley, Assistant Secretary

Date:    January 18, 2006
         ------------------------------

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/ CHRISTOPHER W. CLAUS
         ----------------------------------------------------
         Signature and Title:  Christopher W. Claus/President

Date:    January 25, 2006
         ------------------------------


By:*     /s/ DEBRA K. DUNN
         ---------------------------------------------
         Signature and Title:  Debra K. Dunn/Treasurer

Date:    January 24, 2006
         ------------------------------


*Print the name and title of each signing officer under his or her signature.