July 14 (Bloomberg) -- Washington Mutual Inc., after dropping the most since its initial public offering in 1983, said it is ``well capitalized'' with more than $40 billion in liquidity and $150 billion in retail deposits.

The company's tangible equity to tangible assets ratio is 7.8 percent as of June 30, Seattle-based Washington Mutual said in a Business Wire statement after the close of regular trading. Details will be provided on its July 22 earnings call, the company said.

Washington Mutual led a slide in home lenders after IndyMac Bancorp Inc. was taken over last week in the second-biggest seizure of a financial company by U.S. regulators. Lehman Brothers Holdings Inc. predicted today that Washington Mutual's cumulative losses this year will reach $26 billion as the mortgage crisis worsens.

Washington Mutual rose 10 percent to $3.54 in extended trading after tumbling 35 percent at 4 p.m. on the New York Stock Exchange. The shares have lost 76 percent of their value this year, the second-biggest decline in the 24-member KBW Bank Index. National City Corp. has dropped 77 percent.

To contact the reporter on this story: Ari Levy in San Francisco at alevy5@bloomberg.net

Last Updated: July 14, 2008 17:07 EDT