Late Afternoon Market Movers

Gainers Empire Resorts Inc.

-10.03%- Files 10Q form. Novavax, Inc.

-8.07%- Still feeling positive effects of Q1 results, also technical area at $4.25. Aceto Corp.

-9.61%- Upgraded from Neutral to Buy at Sidoti. GoGo Inc.

-6.51%- Upgraded from Neutral to Buy at UBS, seen as "attractive play" by UBS analysts. Ply Gem Holdings, Inc.

-8.07%- Upgraded to Overweight at Stephens & Co. Castlight Health, Inc.

-8.91%- Shares of Castlight have now taken back most of the losses following concerning Q1 results and guidance on May 7th. After falling about 15 percent on the 7th and another 11 percent on the 8th, shares have now rebounded by more than 60 percent. Technicians have pushed the stock over two important resistance levels at $16 and $17 Monday. Losers Intercept Pharmaceuticals, Inc.

-7.22%- Still feeling effects of Summer Street initiating coverage at a rating of Buy with a PT of $650 late last week.