As of September 30, 2020, the Bank met all capital adequacy requirements and was deemed to be well-capitalized under regulatory standards. Our reported and regulatory capital ratios could be adversely impacted by credit losses resulting from the COVID-19 pandemic.
Review of Financial Position:
Total assets increased $330,335, or 17.8% annualized, to $2,805,662 at September 30, 2020, from $2,475,327 at December 31, 2019. Total loans increased to $2,188,463 at September 30, 2020, compared to $1,938,240 at December 31, 2019, an increase of $250,223. Excluding $217,478 of PPP loans originated primarily during the second quarter, total loans increased $32,745, or 2.3% annualized, since December 31, 2019. Investments decreased $83,515 or 24.7% due to the sale of available-for-sale investment securities with proceeds totaling $46,387 and return of principal on called and matured bonds. The proceeds from the investment portfolio and strong growth of deposits resulted in an increase to our overnight federal funds sold position of $102,300 since December 31, 2019. Deposits increased by $385,395 or 26.1% annualized the result of elevated demand for liquid accounts due to low interest rates and economic uncertainty, strong organic growth of core deposits from new and existing relationships, seasonal inflows of public fund deposits, and proceeds of PPP loans retained on deposit by our commercial borrowers, primarily during the second quarter. Interest-bearing deposits increased $269,437 while noninterest-bearing deposits increased $115,958. Total stockholders’ equity increased $14,613 or 4.9%, from $299,010 at year-end 2019 to $313,623 at September 30, 2020. For the nine months ended September 30, 2020, total assets averaged $2,631,835, an increase of $306,839 from $2,324,996 for the same period of 2019.
Investment Portfolio:
The majority of the investment portfolio is classified as available-for-sale, which allows for greater flexibility in using the investment portfolio for liquidity purposes by allowing securities to be sold when market opportunities occur. Investment securities available-for-sale totaled $247,404 at September 30, 2020, a decrease of $83,074, or 25.1% from $330,478 at December 31, 2019. The decrease was due to the sale of $26,502 of short-term, low yielding municipal securities with the proceeds used to fund loan growth in the first quarter, and the sale of a mortgage-backed security with a book value of $21,228 during the third quarter, as a balance sheet management opportunity was identified based on market rates to realize a gain and redeploy the proceeds into longer duration bonds at a similar yield. An increase in the market value of the available-for-sale portfolio of $8,360 since December 31, 2019, due to the decline in market rates related to COVID-19, partially offset the declines due to receipt of principal cash flow from mortgage-backed securities and proceeds received from called and matured bonds. Investment securities held-to-maturity totaled $7,297 at September 30, 2020, a decrease of $359 or 4.7% from $7,656 at December 31, 2019 due to payments received on mortgage backed securities.
For the nine months ended September 30, 2020, the investment portfolio averaged $299,225, an increase of $26,142 or 9.6% compared to $273,083 for the same period last year. Average tax-exempt municipal bonds have decreased $37,388 or 46.0% to $43,839 for the nine months ended September 30, 2020 from $81,227 during the comparable period of 2019. The decrease in tax-exempt municipal bonds is due to the aforementioned sale during the first quarter 2020 and matured and called bonds. The tax-equivalent yield on the investment portfolio decreased 8 basis points to 2.41% for the nine months ended September 30, 2020, from 2.49% for the comparable period of 2019. The decrease in yield is due to lower reinvestment rates for cash flow from matured and called bonds.
Securities available-for-sale are carried at fair value, with unrealized gains or losses net of deferred income taxes reported in the accumulated other comprehensive income (loss) component of stockholders’ equity. We reported net unrealized gains, included as a separate component of stockholders’ equity of $8,054, net of deferred income taxes of $2,141, at September 30, 2020, and net unrealized gains of $1,450, net of deferred income taxes of $385, at December 31, 2019.
Management, from a credit risk perspective, has taken action to identify and assess its COVID-19 related credit exposures based on asset class. No specific COVID-19 related credit impairment was identified within our investment securities portfolio, including our municipal securities, during the first nine months of 2020.