Securities held to maturity increased by $63.8 million to $678.1 million at September 30, 2011 from $614.3 million at December 31, 2010, due to new purchases exceeding calls and maturities. The growth in the security investments has been a function of decreased lending opportunities. At September 30, 2011, the portfolio, comprised mainly of U.S. government agency debt securities, had a weighted-average yield to earliest call date of 1.47% and a weighted-average remaining contractual maturity of 4.9 years. The Bank invests in U.S. government agency debt obligations to emphasize safety and liquidity, and does not own or invest in collateralized debt obligations, collateralized mortgage obligations or derivatives.
Deposits at September 30, 2011 decreased to $1.68 billion from $1.77 billion at December 31, 2010, primarily reflecting an $89 million decrease in CD accounts. Borrowed funds and related interest payable at September 30, 2011 decreased to $78 million, from $85 million at December 31, 2010, due to the maturity and repayment of $8 million of FHLB borrowings, partially offset by a $1.7 million increase in accrued interest payable on trust preferred securities. As required by our regulators and as permitted by the underlying documents, since February 2010 we have suspended the payment of interest on $55 million of trust preferred securities as well as the declaration and payment of TARP dividends on $25 million of preferred stock held by the U.S. Treasury. Stockholders' equity increased to $194 million at September 30, 2011 from $186 million at December 31, 2010, due to $8 million of net earnings before preferred dividend requirements.
Intervest Bancshares Corporation (IBC) is a bank holding company. Its principal operating subsidiary is Intervest National Bank (INB), a nationally chartered commercial bank that has its headquarters and full-service banking office at One Rockefeller Plaza, in New York City, and a total of six full-service banking offices in Clearwater and Gulfport, Florida. IBC's Common Stock is listed on the NASDAQ Global Select Market: Trading Symbol IBCA. This release may contain forward-looking information. Words such as "may," "will," "could," "should," "would," "believe," "anticipate," "estimate," "expect," "intend," "plan," "project," "assume," "indicate," "continue," "target," "goal," and similar words or expressions of the future are intended to identify forward-looking statements. Except for historical information, the matters discussed herein are subject to certain risks and uncertainties that may adversely affect our business, financial condition and results of operations. The following factors, among others, could cause actual results to differ materially from those set forth in forward looking statements: the regulatory agreements to which IBC and INB are currently subject to and any operating restrictions arising there from including availability of regulatory approvals or waivers; changes in economic conditions and real estate values both nationally and in our market areas; changes in our borrowing facilities, volume of loan originations and deposit flows; changes in the levels of our non-interest income and provisions for loan and real estate losses; changes in the composition and credit quality of our loan portfolio; legislative or regulatory changes, including increased expenses arising there from; changes in interest rates which may reduce our net interest margin and net interest income; increases in competition; technological changes which we may not be able to implement; changes in accounting or regulatory principles, policies or guidelines; changes in tax laws and our ability to utilize deferred tax assets, including NOLs; and our ability to attract and retain key members of management. Reference is made to IBC's filings with the SEC for further discussion of risks and uncertainties regarding our business. Historical results are not necessarily indicative of our future prospects.