The following video is from Monday's Investor Beat, in which host Chris Hill and analysts Tim Hanson and Jason Moser dissect the hardest-hitting investing stories of the day.

In this installment of Investor Beat, our analysts discuss four stocks making big moves. Shares of Affymax (NASDAQOTH:AFFY) fell more than 80% after the company recalled an anti-anemia drug connected to at least five deaths. Zynga (NASDAQ:ZNGA) shares had their best day in four months after Nevada legalized real-money gambling over the Internet. Shares of 3D Systems (NYSE:DDD) tumbled after earnings came in lower than expected. And shares of Barnes & Noble (NYSE:BKS) surged after Chairman and Founder Len Riggio offered to take the company private. 

The relevant video segment can be found between 2:28 and 4:41.