Wall Street Roundup: Disappointing returns. Suspicious trading.

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Gold: Trading now at $1,528 per ounce, up 0.1% from Wednesday. Dow Jones industrial average: Trading now at 11953.43, up 0.5% from Wednesday.

Promising signs. The newest housing and unemployment data were hopeful enough to make investors forget about the troubles in Greece and send stocks up Thursday morning.

Disappointing returns. A trio of hedge fund magnates who made billions betting against the sub-prime mortgage market are having a much harder time finding good investments today.

Suspicious trading. Sen. Charles Grassley (R-Iowa) revealed that there have been many more tips than had been previously disclosed about suspicious trading at SAC Capital, one of the most successful and controversial hedge funds.

-- Nathaniel Popper