Concerns about a potential military conflict with North Korea sent the markets plummeting to close sharply lower with the Dow cratering 234 points to 21,753. Nasdaq tumbled 59 points to 6,375.
On the upside
Shares of Gold Fields (NYSE: GFI), Kinross Gold (NYSE: KGC) and Yamana Gold (NYSE: AUY) all rose as gold prices climbed.
Patterson-UTI Energy (Nasdaq: PTEN) appointed C. Andrew Smith to the position of chief financial officer and announced that it will acquire Multi-Shot.
Northwestern Mutual Investment Management increased its stake in Tenaris (NYSE: TS) by approximately 40.3%.
On the downside
A federal judge invalidated 11 of Mallinckrodt's (NYSE: MNK) patents.
Concerns that Hurricane Irma may cause record insured damage sent shares of AmTrust Financial Services (Nasdaq: AFSI), Aspen Insurance Holdings (NYSE: AHL), Everest Re Group (NYSE: RE), Validus Holdings (NYSE: VR), and XL Group (NYSE: XL) tumbling.
One refinery worker has died from injuries suffered during a fire on Monday at HollyFrontier's (NYSE: HFC) El Dorado, Kansas refinery.
In the broad market, advancing issues outpaced decliners by a margin of nearly 7 to 3 on the NYSE and by nearly 2 to 1 on Nasdaq. The broader S&P 500 dropped 18 points to 2,457. Bitcoin gained $29 to $4,416.
