This chart shows losses in the Standard & Poor's 500 index since October 2007. Joseph Brusuelas, a director at Moody's Economy.com, said from the 2007 peak to the first quarter of 2009, U.S. stock holdings fell $7.6 trillion in real terms. "Our estimate suggests that through the end of March, U.S. stock wealth will have fallen by $66,000 per household," he said.