The tax-equivalent net interest margin was 5.25% in the first nine months of 2011 compared to 4.96% in the first nine months of 2010. The net interest income for the first nine months of 2011 totaled $48.1 million, representing an increase of $7.3 million, or 17.8%, from the same period last year. The increase primarily reflects the acquisition of loans from the former Charter Oak Bank and a reduction in the cost of deposits, partially offset by the pre-payment penalty on the FHLB advance discussed above.
“As we expand the Bank of Marin franchise, we also look to create efficiencies by offsetting the costs of growth with expense savings,“ said Christina Cook, Chief Financial Officer. “From renewing office space leases at market rates to improving processes through automation, our goal is to closely manage expenses overall.”
Non-interest income in the third quarter of 2011 totaled $1.6 million, compared to $1.3 million in the same period last year, and remained relatively unchanged from the prior quarter. The increase from the same quarter a year ago reflects higher Wealth Management and Trust Services fees and other income. Non-interest income for the first nine months of 2011 totaled $4.7 million, an increase of $584 thousand, or 14.0%, from the first nine months of 2010. The increase relates to the pre-tax bargain purchase gain of $146 thousand from the Acquisition and higher Wealth Management and Trust Services fees.
Non-interest expense totaled $9.4 million in the third quarter of 2011, an increase of $914 thousand, or 10.7%, from the same quarter a year ago. The increase primarily reflects higher personnel costs and higher occupancy and equipment cost associated with branch expansion, as well as data processing costs associated with the Acquisition. Non-interest expense decreased $577 thousand, or 5.8%, from the prior quarter due to the absence of one-time Acquisition related third-party costs, which totaled $642 thousand in the prior quarter. Non-interest expense totaled $28.5 million and $25.3 million in the first nine months of 2011 and 2010, respectively, representing a 12.8% increase. The increase primarily reflects higher personnel and occupancy costs associated with branch expansion, as well as one-time Acquisition-related third-party costs of approximately $1.0 million, partially offset by lower FDIC insurance expense due to a change in the FDIC assessment base.