NEW YORK ( TheStreet) -- Stocks fell sharply late Wednesday afternoon, and the Dow closed with a triple-digit loss as Federal Reserve Chairman Ben Bernanke offered a tepid assessment of economic growth for already nervous investors, noting that "the economic outlook remains unusually uncertain." The Dow Jones Industrial Average shed 109 points, or 1.1%, at 10,121. The S&P 500 slid 14 points, or 1.3%, to 1070 and the Nasdaq dropped 35 points, or 1.6%, at 2187. In the afternoon, Bernanke offered his semiannual monetary policy report to Congress. FOMC members continue to expect moderate growth, he said. Still, the chairman also explained that most members see "risks to growth as weighted to the downside," given headwinds out of the eurozone and struggles with job growth, among other factors. He also noted that "progress in reducing unemployment is now expected to be somewhat slower than we previously projected." John Canally, economist at LPL Financial, said stock losses steepened because investors were looking for more certainty from economic policymakers on responses to an economic pullback. "I think the market was setting itself up for some sort of the acknowledgment that there's a soft spot or a double-dip, and clarity on what specific actions that will be taken to respond," Canally said, adding that expectation was somewhat misguided. "The temper tantrum in the market today is investors thinking 'all you gave us is things are uncertain.'" "If you look at other parts of the testimony, it's stuff that's already out there. But the market is pretty skittish right now, so all news is bad news," he continued. In the morning, stocks pared some of their earlier losses but remained weak despite quarterly earnings beats from Morgan Stanley ( MS), Wells Fargo ( WFC), and Apple ( AAPL), which reported late Tuesday. "Apple news from last night was off the charts, and I was very happy with Morgan Stanley and Wells Fargo this morning. On balance, second-quarter earnings news has been pretty good," said Phil Orlando, chief equity market strategist at Federated Investors. He said the bellwethers have been giving good news and the few misses have been mild and from expected second-quarter weaknesses like currencies or margin contractions. "Whether we can break through the top of this trading range will depend on the rest of the corporate earnings season and what the next sets of housing and jobs data look like." Earlier, Morgan Stanley posted a second-quarter profit of 80 cents a share and said revenue jumped nearly 54% year over year to $8 billion, exceeding analysts' forecasts for earnings of 46 cents a share and revenue of $7.93 billion. The stock soared 6.3% higher to $26.80. Shares of Wells Fargo moved 0.6% higher after the company soared past estimates for a profit of 48 cents a share with earnings of 55 cents. Revenue, meanwhile, met expectations of $21.4 billion. Late Tuesday, Apple exceeded expectations with third-quarter earnings of $3.51 a share and sales of $15.7 billion, and Yahoo! ( YHOO) topped consensus profit estimates by a penny, but missed revenue targets. In Washington, Senate Democrats overturned a Republican filibuster on an unemployment benefits extension on Tuesday and a Senate vote on the bill, which would extend benefits to the 2.5 million Americans who have been out of work for six months, is expected on Wednesday. President Obama also signed sweeping financial reform measures into law today after the Senate passed the bill last week. Overseas on Wednesday, Hong Kong's Hang Seng rose 1.1%, and Japan's Nikkei slipped 0.2%. The FTSE in London advanced 1.5%, and the DAX in Frankfurt gained 0.4%.