Following are the day’s biggest winners and losers. Find out why shares of JM Smucker and Tyson Foods popped while Astra-Zeneca and Freeport-McMoRan dropped.

POPS (stocks that jumped higher)JM Smucker (SJM) popped 0.5%. On a day when the Dow goes down over 400 points it’s a pop. The jam maker was upgraded to “buy” from “underperform” by Merrill Lynch.

Tyson Foods (TSN) popped 1%. The frozen food giant declared a quarterly dividend of 4 cents a share.

DROPS (stocks that slid lower)

Astra-Zeneca (AZN) dropped 12%. The drugmaker announced it was revising its forecast to the lower end of the EPS range it provided on Oct. 30th. – They’ve also got some generic competition now, says Pete Najarian. Ouch!

Freeport-McMoRan (FCX) dropped 6%. JP Morgan reduced its EPS estimate for the company, a day after downgrading the company to "neutral" from "overweight". – This stock is just not working right now, says Guy Adami.

Capital One (COF) dropped 9%. Stifel Nicolaus reduced its estimates for the company citing macro pressures. – I’m short, reminds Karen Finerman.

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