Gary Schminkey
Analyst · Sandler O'Neill
Thanks, Melanie. Good afternoon, everyone. Earlier today, we announced earnings of $14.8 million for the fourth quarter ended December 31, 2011, or $0.37 per diluted common share. This compares to $12.6 million for the same quarter of 2010 or $0.32 per diluted common share. All our results were materially influenced by our FDIC-assisted transactions. We enjoyed a strong net interest margin, quarter-over-quarter loan growth and improving credit metrics. We provided a table in our earnings release showing the impact of certain accounting entries associated with our acquired loan portfolios. The net effect of our acquired loan accounting resulted in additional pretax income of about $8.6 million for the current quarter. This compares to additional pretax income from acquired loans of about $7.7 million for the quarter ended September 30, 2011.
In the current quarter, we recorded $17.2 million in incremental accretion income over the contractual interest rate stated in individual loan notes accounted for under ASC 310-30. The change in our FDIC loss sharing assets was $17.4 million, and the FDIC clawback liability was $362,000. In addition, we accreted $9.2 million into income from the discount on the Bank of Whitman acquired loan portfolio. You may remember this portfolio is not covered by any loss sharing agreement and was, for the most part, a relatively clean portfolio. As a result, we do not apply ASC 310-30 accounting treatment but rather, accrete the discount in the same fashion as we accrete net deferred fees on originated loans.
Generally, the discount is accreted in income over the term of the individual loans. However, certain loan activity such as prepayments in full, result in the remaining discount being accreted to income immediately. This activity makes it challenging to determine an expected run rate. The variability in earnings resulting from accounting for the FDIC-assisted transactions will continue as changes occur in the timing and amount of future cash flows. The expected future cash flows for certain of the acquired loans are reviewed at least quarterly. Our tax equivalent net interest margin for the fourth quarter was 7.14%, up from 4.35% for the same quarter last year. Margin was positively impacted by 246 basis points as a result of the additional accretion of income related to our acquired loan portfolios.
Year-to-date, our net interest margin was 6.27% as compared to 4.76% last year. The year-to-date net interest margin was positively impacted by 176 basis points, as a result of additional accretion of income related to our acquired loan portfolios, which was partially offset by 2 basis points of interest reversals of $753,000 related to originated loans, migrating to nonaccrual status during the year. Average interest earning asset yields increased 108 basis points to 7.42% in the fourth quarter of this year from 4.84% for the same quarter last year. The increased yield is due to additional accretion income over the stated loan rates, partially offset by a lower prevailing loan origination rate. During the same period, average interest bearing liability cost decreased 28 basis points to 41 basis points. Interest-bearing liability costs have decreased during the fourth quarter by approximately 9 basis points from the third quarter of this year.
Turning to noninterest income. After removing the effects of the change in the FDIC loss sharing assets, gain on investment securities and the impairment charge on investment securities, noninterest income for the fourth quarter 2011 had an increase in $819,000 or 8.3%, due to increased volume and service charges on deposit accounts and merchant services fees when compared to the same period last year. On line item, other noninterest income, decreased by $80,000 as compared to the fourth quarter of last year, primarily due to a decline in interest rate swap income. On a linked quarter basis, other noninterest income is down $603,000 from the third quarter of this year due to a decline in loan fee income. Specifically, we have booked approximately $435,000 in non-recurring SBA fees in the third quarter of this year.
Impairment charge on investment securities relates to a single municipal obligation. On December 1, 2011, the Greater Wenatchee, Washington Regional Event Center Public Facilities bond went into default. Although we remain hopeful that the City of Wenatchee, Washington and other county officials will fulfill their obligation to fully repay bondholders, we have no information at this time to justify a value other than 0. We will continue to pursue all remedies for repayment of this obligation.
Our efficiency ratio was 69.6% in the fourth quarter 2011 compared to 65.3% for the same quarter last year. While we have successfully managed our expenses, efficiency ratio increased due to additional expenses associated with adding 18 branches to our retail system this year, 2 core system conversions and from managing both our covered and non-covered problem assets.
Compensation and benefits cost for the fourth quarter are up about $4.1 million over the same quarter last year due to the effect of additional staff from our FDIC-assisted transactions. We recorded a tax expense of $5.7 million for the fourth quarter for an effective tax rate of about 28%. The tax expense is lower than our marginal rate as a result of earnings from our tax-exempt municipal securities, along with other tax-exempt investments such as bank owned life insurance and affordable housing partnerships. As we had anticipated, the year-to-date effective tax rate was approximately 27% for the full year 2011.
Turning to the loan portfolio. We categorized the loans acquired from our Bank of Whitman transaction as discounted loans, which are included with our originated loans in the non-covered loan portfolio composition, not in the covered loan category. Our non-covered loans ended the quarter at $2.35 billion, up $432.6 million from December 31, 2010, and up $90.5 million or 4% from September 30, 2011. Comparing to September 30 of this year on a linked quarter basis, commercial business loans increased $47.9 million or 4.9%, commercial real estate loans increased $21 million or 2.1%, and real estate construction loans increased $7.5 million or 9.4%. At the end of the fourth quarter, core deposits were up $45.7 million from September 30 of this year. The increase in core deposits is coming from non-interest demand accounts, increasing $51.4 million during the quarter and interest-bearing demand of $23.3 million. Our ratio of core deposits to total deposits has increased from 90% at year-end 2010 to 91.3% at September 30 to 92% at year end.
Our tangible common equity to tangible assets at year end was 13.3%, as compared to 14% at December 31 of last year. Investment securities increased $32.3 million during the fourth quarter. We continue to seek opportunities to invest our excess cash, we typically add investments with a duration of 3 to 5 years. Our main emphasis is certainly investment quality but we also evaluate the structure of the investment to have some predictability of cash flow.
At this point, I'd like to turn the call over to Andy McDonald, our Chief Credit Officer. Andy?