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

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

NYSE

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.