Stocks suffer their worst weekly loss since late 2012, and the markets face a tough week ahead with Caterpillar, Apple, Amazon.com and Exxon reporting.
Big Blue has an outsized effect on the blue-chip index because of its price. If the stock were simply flat, the DJIA would be up 100 points.
But IBM shares fall after hours, after earnings miss estimates. Still, stocks may open higher Friday after a Thursday swoon. The major indexes are off more than 2% since peaking last week.
Shares tumble on reports of weakening iPhone and iPad demand. But buying kicks in as soon as $400 is breached.
Earnings and guidance disappoint investors, but CEO Marissa Mayer says it will take time for growth to ratchet up. Shares are holding up.
Decent news on inflation and housing gives stocks a chance to recover from Monday's drubbing. Gold recoups of its losses. Intel earnings meets estimates.
A bad day for stocks becomes much worse after blasts kill at least 3, injure many more along the Marathon course. Gold suffers its worst 2-day loss since 1980.
Gold has fallen more than 20% since the summer of 2011, as worries about domestic economic problems ease and fears of a government default dissipate.
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