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Morgan Stanley tumbles as profit misses analysts' estimates

Metals drop as China posts slowest economic growth since 2009

U.S. stocks declined as Morgan Stanley kicked off a busy week of corporate earnings with disappointing results, while a slowdown in Chinese growth sent commodities lower.

The Standard & Poor's 500 Index slipped from an eight-week high as Morgan Stanleyfollowed other large banks in reporting a drop in bond-trading revenue. European and emerging-market equities were little changed. Copper and nickel fell after China reported the slowest economic growth since 2009. Treasury 10-year note yields hovered near 2 percent, while the dollar strengthened versus the euro.