EXHIBIT 99.1 Tower Group, Inc. Reports a 48% Increase in Third Quarter of 2006 Net Income NEW YORK--(BUSINESS WIRE)--Nov. 2, 2006--Tower Group, Inc. (NASDAQ: TWGP) today reported a 48% increase in third quarter of 2006 net income to $8.5 million ($0.42 per diluted share) as compared to net income of $5.7 million ($0.28 per diluted share) in the third quarter of 2005. For the first nine months of 2006, net income increased 92% to $27.3 million ($1.36 per diluted share) as compared to $14.2 million ($0.71 per diluted share) for the first nine months of 2005. Results for the nine months of 2006 were affected by several significant items which were discussed in our second quarter earnings release. GAAP Financial Highlights: Three Months Ended Nine Months Ended September 30, September 30, ------------------- ------------------- 2006 2005 2006* 2005 --------- --------- --------- --------- ($ in thousands) Gross premiums written $ 99,810 $ 72,821 $311,597 $221,495 Net premiums written 51,660 51,391 180,011 155,937 Net premiums earned 52,366 45,324 168,908 112,933 Total commission and fee income 14,700 10,497 36,654 29,233 Net investment income 5,923 4,131 15,875 10,479 Net realized gain on investments 32 (15) (84) 214 Total revenues 73,021 59,937 221,353 152,859 Other income 418 - 12,852 - Net Income 8,456 5,708 27,251 14,190 EPS - Basic $ 0.43 $ 0.29 $ 1.38 $ 0.73 EPS - Diluted $ 0.42 $ 0.28 $ 1.36 $ 0.71 Return on Average Equity 20.2% 16.5% 22.8% 14.1% ========= ========= ========= ========= * Unadjusted for the effects of the PXRE transactions and CastlePoint items Michael H. Lee, President and Chief Executive Officer of Tower Group, Inc. commented, "We had yet another strong quarter of premium and earnings growth. It has been two successful years since our initial public offering, and I'm pleased that we were able to successfully execute our business plan this past quarter to meet our stated financial and business objectives. Our strong results during this past quarter continue to be driven by profitable underwriting results as reflected by our net combined ratio of 84% as well as the continued growth in our core commercial and personal lines business. " Total revenues increased by 21.8% to $73.0 million for the three months ended September 30, 2006 compared to $59.9 million for the same period in 2005. Net premiums earned increased by 15.5% to $52.4 million for the three months ended September 30, 2006 compared to $45.3 million for the same period in 2005. During the third quarter of 2006 under quota share reinsurance agreements we ceded to CastlePoint Reinsurance approximately 40% of our brokerage business, 50% of our traditional program business and 85% of our specialty program business. This is compared to a 25% quota share ceding percentage in the three months ended September 30, 2005. In addition, ceded premiums earned increased in the third quarter of 2006 as a result of ceding unearned premiums to CastlePoint Reinsurance as of April 1, 2006 which related to business written in 2005 that we had previously retained. Total commission and fee income increased by 40.0% to $14.7 million in the third quarter of 2006 compared to $10.5 million in the third quarter of 2005. Net investment income increased by 43.4% to $5.9 million for the three months ended September 30, 2006 compared to $4.1 million in the same period in 2005. On a tax equivalent basis, the yield was 5.6% as of September 30, 2006 and 5.1% as of September 30, 2005. Gross loss and loss adjustment expenses and the gross loss ratio for the Insurance and Reinsurance Segments combined for the three months ended September 30, 2006 were $49.1 million and 53.1%, respectively, compared to $36.3 million and 56.0%, respectively, for the same period in 2005. The net loss ratio for the combined segments was 58.0% for the three months ended September 30, 2006 as compared to 58.5% in the same period of 2005. Operating expenses were $28.4 million for the three months ended September 30, 2006 as compared to $23.3 million for the same period in 2005. Our gross expense ratio was 28.8% for the three months ended June 30, 2006 as compared with 31.0% for the same period in 2005. The net underwriting expense ratio, which reflects the benefit of ceding commission revenue that lowers the gross expense ratio, was 25.7% for the three months ended September 30, 2006 as compared to 29.3% for the same period in 2005. The gross combined ratio was 81.9% for the three months ended September 30, 2006 as compared with 87.0% for the same period in 2005. The net combined ratio was 83.7% for the three months ended September 30, 2006 as compared to 87.8% for the same period in 2005. Additional Highlights: Dividend Declaration Tower Group, Inc. announced today that the Company's Board of Directors approved a quarterly dividend on October 26, 2006 of $0.025 per share payable December 27, 2006 to stockholders of record as of December 15, 2006. Sale of Tower Indemnity Company of America On October 30, 2006 Tower executed an agreement to sell all of the issued and outstanding common shares of Tower Indemnity Company of America ("TICA"), a New York property and casualty insurance company, to CastlePoint Management Corp ("CastlePoint Management"), a subsidiary of CastlePoint Holdings, Ltd. ("CastlePoint"). The purchase price is an amount equal to TICA's aggregate statutory surplus as of the closing date plus $350,000 for additional legal and other costs. As of September 30, 2006 TICA's statutory surplus was $8.4 million. Tower entered into this sale to facilitate its pooling arrangement with CastlePoint. Tower does not expect to recognize any gain or loss on this sale. TICA is a shell insurance company and has no net liabilities for insurance losses. 2006 Guidance For the fourth quarter of 2006, we project net income to increase to a range between $8.8 million and $9.4 million. We project the diluted earnings per share in the fourth quarter to be in the range between $0.44 and $0.47 per diluted share. For the full year, we anticipate net income to be in a range between $36.1 million and $36.7 million and diluted earnings per share to be between $1.80 and $1.83 on a GAAP basis which includes the effects of the PXRE transactions, CastlePoint items and increased catastrophe reinsurance costs. About Tower Group, Inc. Tower Group, Inc. offers property and casualty insurance products and services through its insurance company and insurance service subsidiaries. Its two insurance company subsidiaries are Tower Insurance Company of New York which is rated A- (Excellent) by A.M. Best Company and Tower National Insurance Company which is also rated A- (Excellent) by A.M. Best Company. Both subsidiaries offer commercial insurance products to small to medium-size businesses and personal insurance products to individuals. Cautionary Note Regarding Forward-Looking Statements The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forward-looking statements. This release or any other written or oral statements made by or on behalf of the Company may include forward-looking statements that reflect the Company's current views with respect to future events and financial performance. All statements other than statements of historical fact included in this release are forward-looking statements. Forward-looking statements can generally be identified by the use of forward-looking terminology such as "may," "will," "plan," "expect," "intend," "estimate," "anticipate," "believe" or "continue" or their negative or variations or similar terminology. All forward-looking statements address matters that involve risks and uncertainties. Accordingly, there are or will be important factors that could cause our actual results to differ materially from those indicated in these statements. We believe that these factors include but are not limited to ineffectiveness or obsolescence of our business strategy due to changes in current or future market conditions; increased competition on the basis of pricing, capacity, coverage terms or other factors; greater frequency or severity of claims and loss activity, including as a result of natural or man-made catastrophic events, than our underwriting, reserving or investment practices anticipate based on historical experience or industry data; the effects of acts of terrorism or war; developments in the world's financial and capital markets that adversely affect the performance of our investments; changes in regulations or laws applicable to us, our subsidiaries, brokers or customers; acceptance of our products and services, including new products and services; changes in the availability, cost or quality of reinsurance and failure of our reinsurers to pay claims timely or at all; decreased demand for our insurance or reinsurance products; loss of the services of any of our executive officers or other key personnel; the effects of mergers, acquisitions and divestitures; changes in rating agency policies or practices; changes in legal theories of liability under our insurance policies; changes in accounting policies or practices; and changes in general economic conditions, including inflation and other factors. Forward-looking statements speak only as of the date on which they are made, and the Company undertakes no obligation to update publicly or revise any forward-looking statement, whether as a result of new information, future developments or otherwise. For more information visit Tower's Web site at http://www.twrgrp.com/. Insurance Overall Results of Operations Insurance and Reinsurance Segments Third Quarter ($ in thousands) Three Months ended September 30, 2006 2005 % Change Revenues Earned premiums: Gross premiums earned $ 92,527 $ 64,859 42.7% Less: Ceded premiums earned (40,162) (19,535) 105.6% ----------------------- Net premiums earned 52,365 45,324 15.5% Ceded commission revenue 13,171 6,845 92.4% Policy Billings Fees 286 227 26.0% ----------------------- Total Revenue 65,822 52,396 25.6% Expenses Loss and Loss Adjustment Expenses Gross loss and loss adjustment expenses 49,100 36,334 35.1% Less: Ceded loss and loss adjustment expenses (18,709) (9,822) 90.5% ----------------------- Net loss and loss adjustment expense 30,391 26,512 14.6% Underwriting Expenses Commissions paid to producers 15,099 10,135 49.0% Other underwriting expenses 11,824 10,226 15.6% ----------------------- Total Underwriting Expense 26,923 20,361 32.2% Underwriting Profit $ 8,508 $ 5,523 54.0% ======================= Key Measures Written Premiums Gross $ 99,810 $ 72,821 37.1% Ceded (48,150) (21,430) 124.7% ----------------------- Net $ 51,660 $ 51,391 0.5% ======================= Loss ratios Gross 53.1% 56.0% Net 58.0% 58.5% Accident Year Loss Ratio Gross 53.6% 56.5% Net 59.2% 59.0% Expense ratios Gross 28.8% 31.0% Net 25.7% 29.3% Combined ratios (GAAP) Gross 81.9% 87.0% Net 83.7% 87.8% Insurance Overall Results of Operations Insurance and Reinsurance Segments First Nine Months ($ in thousands) Nine Months ended September 30, 2006 2005 % Change Revenues Earned premiums: Gross premiums earned $ 264,711 $ 165,787 59.7% Less: Ceded premiums earned (95,803) (52,854) 81.3% ---------------------- Net premiums earned 168,908 112,933 49.6% Ceded commission revenue 30,550 18,021 69.5% Policy Billings Fees 825 653 26.3% ---------------------- Total Revenue 200,283 131,607 52.2% Expenses Loss and Loss Adjustment Expenses Gross loss and loss adjustment expenses 150,974 93,828 60.9% Less: Ceded loss and loss adjustment expenses (45,948) (27,241) 68.7% ---------------------- Net loss and loss adjustment expense 105,026 66,587 57.7% Underwriting Expenses Commissions paid to producers 42,109 27,211 54.7% Other underwriting expenses 33,508 24,596 36.2% ---------------------- Total Underwriting Expense 75,617 51,807 46.0% Underwriting Profit $ 19,640 $ 13,213 48.6% ====================== Key Measures Written Premiums Gross $ 311,597 $ 221,495 40.7% Ceded (131,586) (65,558) 100.7% ---------------------- Net $ 180,011 $ 155,937 15.4% ====================== Loss ratios Gross 57.0% 56.6% Net 62.2% 59.0% Accident Year Loss Ratio Gross 57.5% 57.2% Net 62.0% 59.2% Expense ratios Gross 28.3% 30.9% Net 26.2% 29.3% Combined ratios (GAAP) Gross 85.3% 87.5% Net 88.4% 88.3% Insurance Services Segment Results of Operations Three Months Ended Nine Months Ended September 30, September 30, ------------------- ------------------- 2006 2005 2006 2005 --------- --------- --------- --------- ($ in thousands) Revenues Direct commission revenue from managing general agency $ 380 $ 2,022 $ 2,291 $ 6,713 Claims administration revenue 688 1,137 2,572 3,287 Reinsurance intermediary fees(1) 176 259 411 541 Policy billing fees - 7 5 18 --------- --------- --------- --------- Total Revenues 1,244 3,425 5,279 10,559 --------- --------- --------- --------- Expenses Direct commissions expense paid to producers 211 1,143 1,545 3,528 Other insurance services expenses(2) 193 472 735 1,412 Claims expense reimbursement to TICNY 687 1,135 2,556 3,276 --------- --------- --------- --------- Total Expenses 1,091 2,750 4,836 8,216 --------- --------- --------- --------- Insurance Services Pre-tax Income $ 153 $ 675 $ 443 $ 2,343 ========= ========= ========= ========= Premium produced by TRM on behalf of issuing companies $ 1,408 $ 8,013 $ 10,270 $ 24,888 ========= ========= ========= ========= Tower Group, Inc. Consolidated Statements of Income and Comprehensive Net Income (Unaudited) Three Months Ended Nine Months Ended September 30, September 30, ------------------------- ------------------------- 2006 2005 2006 2005 ------------ ------------ ------------ ------------ ($ in thousands, except share and per share amounts) Revenues Net premiums earned $ 52,366 $ 45,324 $ 168,908 $ 112,933 Ceding commission revenue 13,171 6,845 30,550 18,021 Insurance services revenue 1,243 3,418 5,274 10,541 Net investment income 5,923 4,131 15,875 10,479 Net realized gains (losses) on investments 32 (15) (84) 214 Policy billing fees 286 234 830 671 ------------ ------------ ------------ ------------ Total revenues 73,021 59,937 221,353 152,859 ------------ ------------ ------------ ------------ Expenses Loss and loss adjustment expenses 30,392 26,512 105,026 66,587 Direct commission expense 15,309 11,277 43,654 30,738 Other operating expenses 13,127 12,068 38,718 30,265 Interest expense 1,863 1,296 5,066 3,567 ------------ ------------ ------------ ------------ Total expenses 60,691 51,153 192,464 131,157 ------------ ------------ ------------ ------------ Other Income Equity income in unconsolidated affiliate 418 - 364 - Gain from issuance of common stock by unconsolidated affiliate - - 7,883 - Warrant received from unconsolidated affiliate - - 4,605 - ------------ ------------ ------------ ------------ Income before income taxes 12,748 8,784 41,741 21,702 Income tax expense 4,292 3,076 14,490 7,512 ------------ ------------ ------------ ------------ Net income $ 8,456 $ 5,708 $ 27,251 $ 14,190 ============ ============ ============ ============ Comprehensive Net Income Net income $ 8,456 $ 5,708 $ 27,251 $ 14,190 Other comprehensive income: Gross unrealized investment holding gains (losses) arising during period 9,150 (4,765) 3,273 (4,424) Equity in net unrealized gains in investment in unconsolidated affiliate's investment portfolio 296 - 184 - Less: reclassification adjustment for (gains) losses included in net income (32) 15 84 (214) ------------ ------------ ------------ ------------ 9,414 (4,750) 3,541 (4,638) Income tax (expense) benefit related to items of other comprehensive income (3,295) 1,669 (1,297) 1,630 ------------ ------------ ------------ ------------ Total other comprehensive (loss) net income 6,119 (3,081) 2,244 (3,008) ------------ ------------ ------------ ------------ Comprehensive Net Income $ 14,575 $ 2,627 $ 29,495 $ 11,182 ============ ============ ============ ============ Earnings Per Share Basic earnings per common share $ 0.43 $ 0.29 $ 1.38 $ 0.73 ============ ============ ============ ============ Diluted earnings per common share $ 0.42 $ 0.28 $ 1.36 $ 0.71 ============ ============ ============ ============ Weighted Average Common Shares Outstanding: Basic 19,776,188 19,575,728 19,734,365 19,550,722 Diluted 20,074,058 20,161,873 20,032,256 20,119,280 Tower Group, Inc. Consolidated Balance Sheets (Unaudited) September 30, December 31, 2006 2005 ------------- ------------- ($ in thousands, except par value and share amounts) Assets Fixed-maturity securities, available-for- sale, at fair value (amortized cost $402,668 in 2006 and $331,123 in 2005) $ 401,032 $ 326,681 Equity securities, available-for-sale, at fair value (cost $42,676 in 2006 and $6,681 in 2005) 42,646 5,934 Equity securities, at cost - 24,558 Common trust securities - statutory business trusts, equity method 2,045 1,426 ------------- ------------- Total investments 445,723 358,599 Cash and cash equivalents 40,533 38,760 Investment income receivable 4,123 3,337 Agents' balances receivable 55,245 46,004 Assumed premiums receivable 4,910 1,076 Ceding commission receivable - 8,727 Reinsurance recoverable 108,515 104,811 Receivable - claims paid by agency 3,633 2,309 Prepaid reinsurance premiums 79,102 43,319 Deferred acquisition costs net of deferred ceding commission revenue 34,783 29,192 Federal and state income taxes recoverable 3,134 365 Deferred income taxes 242 3,204 Intangible assets 5,830 5,835 Fixed assets, net of accumulated depreciation 23,912 7,920 Investment in unconsolidated affiliate 27,436 - Other assets 4,342 3,999 ------------- ------------- Total Assets $ 841,463 $ 657,457 ============= ============= Liabilities Loss and loss adjustment expenses $ 279,600 $ 198,724 Unearned premium 204,666 157,779 Reinsurance balances payable 24,851 19,200 Payable to issuing carriers 1,818 5,252 Funds held as agent 8,195 8,191 Funds held under reinsurance agreements 57,024 59,042 Accounts payable and accrued expenses 12,179 13,694 Deferred rent liability 6,040 - Payable for securities 939 - Other liabilities 3,580 2,867 Federal income taxes payable - 460 Subordinated debentures 68,045 47,426 ------------- ------------- Total Liabilities 666,937 512,635 ------------- ------------- Stockholders' Equity Common stock ($0.01 par value per share; 40,000,000 shares authorized; and 20,005,758 shares issued in 2006 and 19,872,672 in 2005) 200 199 Paid-in-capital 112,824 111,066 Accumulated other comprehensive net income (1,108) (3,352) Retained earnings 62,789 37,019 Treasury stock (23,720 shares in 2006 and 17,881 in 2005) (179) (110) ------------- ------------- Total Stockholders' Equity 174,526 144,822 ------------- ------------- Total Liabilities and Stockholders' Equity $ 841,463 $ 657,457 ============= ============= CONTACT: Tower Group, Inc. Thomas Song, 212-655-4789 Managing Vice President tsong@twrgrp.com