The markets reversed course during the midday to trade lower with the Dow falling 43 points to 16,302 as crude oil prices fell below $32 per barrel. Nasdaq dropped 37 points to 4,606.
On the upside
Northstar Asset Management (NYSE: NSAM) retained the services of Goldman Sachs to explore strategic alternatives to increase shareholder value.
Shares of Sientra (Nasdaq: SIEN) climbed over optimism that safety issues of its implant products have been resolved.
Select Medical Holdings (NYSE: SEM) forecast full year earnings and revenue below analyst estimates but the stock price rose.
On the downside
Novartis (NYSE: NVS) halted enrollment in a clinical trial of GenVec's (Nasdaq: GNVC) CGF166.
TimkenSteel's (NYSE: TMST) independent public accounting firm Ernst & Young reissued financial statements for the 2015 full year after TimkenSteel amended a credit agreement.
Shares of Diana Shipping (NYSE: DSX) extended its losses.
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 lost 6 points to 1,915. Bitcoin added $1 to $447.