The markets extended its losses during the midday with the Dow collapsing 220 points to 16,659 as concerns about the global economy weighed on investors. Nasdaq plummeted 82 points to 4380.
On the upside
Shares of Avalanche Biotechnologies (Nasdaq: AAVL) surged on its first trading day.
HealthEquity (Nasdaq: HQY) stock soared in its market debut.
Fourth quarter earnings fell for Vistaprint (Nasdaq: VPRT) but the results were better than expected and the company forecast 2015 earnings and revenue ahead of expectations.
On the downside
eHealth (Nasdaq: EHTH) reported higher second quarter earnings and revenue but the private health insurance exchange forecast full year results that fell short of expectations.
Second quarter earnings soared for On Assignment (NYSE: ASGN) but the company forecast current quarter revenue that missed analyst expectations.
The Manitowoc Co. (NYSE: MTW) disappointed with lower second quarter earnings and revenue that fell short of estimates and lowered its full year guidance.
In the broad market, declining issues outpaced advancers by a margin of more than 11 to 1 on the NYSE and by nearly 9 to 1 on Nasdaq. The broader S&P 500 plummeted 29 points to 1940. Bitcoin climbed $23 to $585.