In addition, some of the financial information discussed on this call includes non-GAAP financial measures. The bank's earnings release, which was issued this morning and is available on the bank's website, presents reconciliations to the appropriate GAAP measures and explains why the bank believes such measures are useful to investors.
And now, I'd like to turn the call over to Jim Herbert.
Thank you, Diane, and thanks to everybody for joining our call today. We are very pleased with our second quarter results. Loans, deposits and wealth management assets all grew very strongly. Credit quality remains excellent. Importantly, book value per share has increased 15% from a year ago. We are very pleased to declare an initial quarterly cash dividend of $0.10 per share. This payout rate represents approximately 15% and we would like to operate in a payout range of 15% to 20% over time.
First Republic continues to perform well across all of our businesses in each of our carefully chosen urban coastal markets. Second quarter results highlight the strength of our business model, even under the currently challenging yield conditions facing the banking industry.
Let me quickly summarize our quarterly numbers. Core net income was up 31% year over year. Core earnings per share, excluding all purchase accounting adjustments, were up 22% year over year to $0.50 per share. GAAP EPS was $0.60 per share after a $0.10 per share one-time charge, which was in connection with the redemption of our REIT preferred. Quarterly loan volume totaled $4 billion, our highest ever, and it was 62% higher than the same quarter last year. Loans outstanding increased 7% in the quarter and 10% for the first half of the year.
Deposits rose by 4% during the quarter and 8% for the first half of the year, and total wealth management assets grew by 6% in the quarter and 14% so far this year. Our asset quality remains very strong. Nonperforming assets at quarter end were at a very low 10 basis points of total assets, or 1/10 of 1%.