Jittery Investors Send Markets Tumbling

Investors still jittery over yesterday's steep plunge sent the markets tumbling today to close sharply lower with the Dow plummeting 139 points to 10,380. Nasdaq sank 54 points to 2265.

On the upside

Merge Healthcare (Nasdaq: MRGE) reported a loss for the first quarter due to acquisition related costs but revenue surged.

Biodel (Nasdaq: BIOD) narrowed second quarter losses.

Gramercy Capital (NYSE: GKK) narrowed first quarter losses.

On the downside

First quarter earnings for Energy Recovery (Nasdaq: ERII) tumbled.

Scientific Games (Nasdaq: SGMS) swung to a first quarter profit but the results missed estimates.

Sotheby's (NYSE: BID) narrowed first quarter losses more than expected but revenue fell short of estimates.

In the broad market, declining issues outpaced advancers by a margin of nearly 5 to 2 on the NYSE and by nearly 7 to 2 on Nasdaq. The Russell 2000 which tracks small cap stocks plunged 19 points to 653.