Other available sources of liquidity include wholesale deposits, and additional borrowings from correspondent banks, FHLBA advances, and the Federal Reserve discount window.
Our short-term and long-term liquidity requirements are primarily met through cash flow from operations, redeployment of prepaying and maturing balances in our loan and investment portfolios, and new customer deposits. Other alternative sources of funds will supplement these primary sources to the extent necessary to meet additional liquidity requirements on either a short-term or long-term basis.
As part of our liquidity management strategy, we open federal funds lines with our correspondent banks. As of September 30, 2026 and December 31, 2025, we had $72.0 million and $69.5 million, respectively, of unsecured federal funds lines with no amounts advanced.
As of September 30, 2026 and December 31, 2025, we had access to the Federal Reserve’s discount window in the amount of $160.1 million and $29.8 million, respectively. There were no borrowings outstanding as of September 30, 2026 and December 31, 2025 for the Federal Reserve’s discount window. We had pledged investment securities at September 30, 2026 and December 31, 2025 totaling $8.6 million and $9.1 million, respectively, as collateral for federal funds purchased. In addition, at September 30, 2026 and December 31, 2025, we also had pledged investment securities with a fair value of nil and $31.6 million, respectively, and pledged loans with an unpaid principal balance of $340.9 million and nil, respectively, as collateral at the Federal Reserve Bank.
At September 30, 2026 and December 31, 2025, we had $30.0 million of outstanding advances from the FHLBA and a letter of credit for $2.0 million. Based on the values of collateral pledged, we had $418.6 million and $144.3 million as of September 30, 2026 and December 31, 2025, respectively, of additional borrowing availability with the FHLBA. At September 30, 2026 and December 31, 2025, we had pledged investment securities with a fair value of $187.6 million and nil, respectively, and pledged loans with an unpaid principal balance of $453.8 million and $283.4 million, respectively, as collateral for the FHLBA advances. We also maintain relationships in the capital markets with brokers to issue certificates of deposits.
Capital Requirements
The Bank is subject to various regulatory capital requirements administered by the Federal Reserve. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary actions by regulators that, if undertaken, could have a direct adverse material effect on the Company's financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors.
Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum ratios. These include a Common Equity Tier 1 ("CET1") risk-based capital ratio, a Tier 1 risk-based capital ratio, which includes CET1 and additional Tier 1 capital, and a total risk-based capital ratio, which includes Tier 1 and Tier 2 capital. CET1 is primarily comprised of the sum of common stock instruments and related surplus net of treasury stock plus retained earnings less certain adjustments and deductions, including with respect to goodwill, intangible assets, mortgage servicing assets, and deferred tax assets subject to temporary timing differences. Additional Tier 1 capital is primarily comprised of noncumulative perpetual preferred stock. Tier 2 capital consists of instruments disqualified from Tier 1 capital, including qualifying subordinated debt and a limited amount of loan loss reserves up to a maximum of 1.25% of risk-weighted assets, subject to certain eligibility criteria. The capital rules also define the risk-weights assigned to assets and off-balance sheet items to determine the risk-weighted asset components of the risk-based capital rules, including, for example, certain “high volatility” commercial real estate, past due assets, structured securities, and equity holdings.
The Bank is also required to maintain capital at a minimum level based on total assets, which is known as the Tier 1 leverage ratio. The leverage capital ratio is the ratio of Tier 1 capital to quarterly average assets net of goodwill, certain other intangible assets, and certain required deduction items require the Bank to maintain:
(i) a minimum leverage ratio of Tier 1 capital to average total assets, after certain adjustments, of 4.0%,
(ii) a minimum ratio of Tier 1 capital to risk-weighted assets of 6.0%,
(iii) a minimum ratio of total-capital to risk-weighted assets of 8.0% and,
(iv) a minimum ratio of CET1 to risk-weighted assets of 4.5%.
In addition, the capital rules require a capital conservation buffer of 2.5% above each of the minimum risk-based capital ratio requirements (CET1, Tier 1, and total capital), comprised of CET1, which is designed to absorb losses during periods of economic stress. These buffer requirements must be met for a bank or bank holding company to be able to pay dividends, engage in share buybacks, or make discretionary bonus payments to executive management without restriction. Our capital conservation buffer was $116.2 million and $110.5 million as of September 30, 2026 and December 31, 2025, respectively.
Prompt Corrective Action — The Federal Banking agencies have broad powers with which to require companies to take prompt corrective action to resolve problems of insured depository institutions that do not meet minimum capital requirements. The law establishes five capital categories for this purpose: