Take a look at some of the biggest movers in the premarket:

Hasbro (HAS) – The toy maker's stock slid 5.2% in the premarket following a double-downgrade to "underperform" from "buy" at Bank of America. The move comes after BofA conducted what it calls a "deep dive" on Hasbro's "Magic: The Gathering" trading card game business. BofA said Hasbro has been overprinting cards and destroying the long-term value of the business.