Wednesday Sector Laggards: Drugs, Defense Stocks (2/20, 1:34 PM ET) -- In trading on Wednesday, drugs shares were relative laggards, down on the day by about 1.1%. Helping drag down the group were shares of Ovid Therapeutics (OVID), down about 30.4% and shares of Sienna Biopharmaceuticals (SNNA) down about 21.7% on the day.

Also lagging the market Wednesday are defense shares, down on the day by about 0.9% as a group, led down by Aerojet Rocketdyne Holdings (AJRD), trading lower by about 7.8% and Kratos Defense & Security Solutions (KTOS), trading lower by about 2.7%.

For MarketNewsVideo.com, I'm Sayoko Murase.