Take a look at some of Friday's morning movers:

JPMorgan Chase - CEO Jamie Dimon says the bank suffered a $2 billion trading loss on derivative investments, and that the loss could grow by as much as another $1 billion. The news puts the entire banking sector on the watch list, including Bank of America, Citigroup, Wells Fargo, Goldman Sachs, and Morgan Stanley, as well as the Financial Sector SPDR ETF.

Arena Pharmaceuticals - A U.S. Food and Drug Administration advisory panel recommended approval of the company’s obesity drug. If approved, it would be the first new treatment in that category to hit the market in more than 10 years. We might also see a spillover effect on Orexigen , which is also trying to bring a weight loss drug to market.

Nvidia - The chipmaker reported first-quarter profit of $0.16 per share, excluding certain items, six cents above estimates, with revenues and its second quarter sales forecast also beating estimates. The company credits the success of its newly launched desktop products among the factors helping its bottom line.

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