The markets opened mixed with the Dow losing 20 points to 20,960 while Nasdaq rose 8 points to 6,056 as the nation's economy expanded at a less than expected annualized rate of 0.7% in the first quarter.

On the upside

Sarepta (Nasdaq: SRPT) swung to a better than expected profit for the first quarter.

Align Technology (Nasdaq: ALGN) impressed with sharply higher first quarter earnings and revenue that topped analyst estimates.

Cerner (Nasdaq: CERN) reported higher first quarter earnings and revenue that beat expectations.

On the downside

FuelCell Energy (Nasdaq: FCEL) priced its public offering of common stock and warrants at the discounted price of $1.28 per unit.

Athenahealth (Nasdaq: ATHN) widened losses for the first quarter.

Gigamon (NYSE: GIMO) fell to a loss for the first quarter.

In the broad market, declining issues outpaced advancers by more than a margin of 2 to 1 on the NYSE and by nearly 5 to 3 on Nasdaq. The broader S&P 500 index held steady at 2,388. Bitcoin fell $14 to $1306.