Premarket Roundup: Capital One, GameStop

Among the premarket stories for Monday, August 17, from AP Financial News:

NEW YORK (AP) — Capital One Financial Corp. said Monday that defaults on its U.S. credit cards rose in July.

NEW YORK (AP) — Shares of GameStop Corp., the world's largest videogame retailer, slid 5 percent in premarket trading Monday after an analyst predicted its second-quarter results would fall short and the company would have to cut its guidance.

NEW YORK (AP) — Health insurer Aetna Inc. will need two years to bring its profit margins back to their former levels, an Oppenheimer analyst said Monday in a note to client.

NEW YORK (AP) — Warner Bros. is trying to wring more profit from DVD sales and that presents Netflix Inc., the order-by-mail service, with a couple of bad scenarios, a William Blair & Co. analyst warned Monday.

NEW YORK (AP) — Analysts on Monday remained confident in Callaway Golf Co.'s business prospects, despite a court ruling that was a setback for the sporting goods company.

NEW YORK (AP) — NetSuite Inc.'s revenue growth should bottom out in the third quarter and continue expanding through next year, a Credit Suisse analyst said Monday, upgrading shares to "Outperform" from "Neutral."

NEW YORK (AP) — A potential shortage of Genzyme Corp.'s drug Cerezyme could boost sales of a rival treatment that has yet to be approved, a Lazard Capital Markets analyst said Monday.