J.C. Penney, Micron Technology, RPM International, Arena and Sonic are are big market movers

MarketsAssociated Press

Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE

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J.C. Penney Co., up $1.33 to $7.89

The department store operator reported a 3.7 percent increase in same-store sales during the nine-week holiday shopping season.

Monsanto Co., up $1.45 to $117.21

The agriculture products company reported better-than-expected fiscal first-quarter profit, but revenue fell short of forecasts.

RPM International Inc., down $3.81 to $45.27

The chemical products maker reported worse-than-expected quarterly financial results and trimmed its 2015 fiscal outlook.

Dick's Sporting Goods Inc., up $5.77 to $55.01

Reuters reported that the retailer is in early-stage talks looking into the possibility of going private.

Nasdaq

Micron Technology Inc., down 77 cents to $32.10

The chipmaker reported better-than-expected fiscal first-quarter profit, but its revenue results fell short of expectations.

Arena Pharmaceuticals Inc., up $2.53 to $5.85

The biotechnology company reported positive results from an early-stage study on a potential treatment for autoimmune diseases.

Sonic Corp., up $2.63 to $29.72

The drive-in restaurant chain reported better-than-expected fiscal first-quarter financial results and reaffirmed its outlook.

Keurig Green Mountain Inc., up $5.83 to $133.02

The company struck a deal with Dr. Pepper Snapple to make single-serve capsules for use in Keurig's soon-to-be released cold beverage system.