NEW YORK (AP) — Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market:
Chesapeake Energy Corp., up 72 cents to $27.29
The energy company is considering selling or possibly spinning off its oilfield services unit to give shareholders more bang for their buck.
Pfizer Inc., up 53 cents to $31.99
The drugmaker's Prevanar 13...