Disappointing earnings sent the markets tumbling to a sharply lower open with Dow plunging 115 points to 17,913. Nasdaq plummeted 47 points to 4,975.

On the upside

Glu Mobile (Nasdaq: GLUU) reported higher first quarter earnings and revenue, entered an exclusive partnership with Britney Spears and announced that Tencent Holdings will take a 15% stake in the company.

ClickSoftware Technologies (Nasdaq: CKSW) will be taken private by Francisco Partners Management for approximately $438 million in cash.

Civeo (NYSE: CVEO) fell to a loss for the first quarter on lower revenue but the stock price rose.

On the downside

Yelp (NYSE: YELP) reported an unexpected loss for the first quarter and forecast current quarter revenue below estimates.

Pacira Pharmaceuticals (Nasdaq: PCRX) swung to a profit for the first quarter but revenue fell short of expectations.

STMicroelectronics (NYSE: STM) reported a loss for the first quarter as revenue fell.

In the broad market, declining issues outpaced advancers by a margin of nearly 2 to 1 on the NYSE and by more than 5 to 3 on Nasdaq. The broader S&P 500 fell 14 points to 2092. Bitcoin rose $8 to $235.