The Dow Jones industrial average fell 358 points in Thursday trading to close at 16,991, the first time it’s closed below 17,000 since October.

The S&P 500 fell 44 points to 2,036.

The Nasdaq fell 142 points to 4,878.

The LABJ Stock Index fell eight points to 227.

Gainers and Losers

Thursday’s biggest local gainer was West L.A. brokerage and investment bank B. Riley Financial Inc. Shares of the company rose 2 percent on the day, closing at $10.21. B. Riley was one of just 22 L.A. firms that saw any gains Thursday, as 124 local companies saw shares fall.

Thursday’s biggest local loser was alternative energy developer Rentech Inc. Shares of the company fell 15 percent on the day, closing at $6.15.

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