The markets tumbled to close sharply lower with the Dow plunging 138 points to 20,453 after the U.S. military dropped the most massive bomb in Afghanistan. Nasdaq fell 31 points to 5,805.
On the upside
Shares of Yext (NYSE: YEXT) surged in its market debut.
Zoetis (Nasdaq: ZTS) will acquire Nexvet Biopharma (Nasdaq: NVET) for a premium of approximately $85 million.
Tocagen (Nasdaq: TOCA) stock soared on its first trading day.
On the downside
Apogee Enterprises (Nasdaq: APOG) reported higher fourth quarter earnings but the results fell short of expectations
MoSys (Nasdaq: MOSY) revised its operating plan to limit new product development and research and development activities.
Investors locked in profits on North Atlantic Drilling (NYSE: NADL).
In the broad market, declining issues outpaced advancers by a margin of 5 to 2 on the NYSE and by nearly 7 to 3 on Nasdaq. The broader S&P 500 index dropped 15 points to 2,328. Bitcoin plunged $42 to $1169.