Tyson Foods, Netflix, RealNetworks, Williams Sonoma are among market movers Thursday

Tyson Foods, Netflix, RealNetworks are movers

NEW YORK — The following stocks were among those that moved substantially or traded heavily Thursday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE:

LaBranche & Co. Inc., up $1.17 at $3.95

British bank Barclays said it is acquiring the market maker’s 700 assignments on the New York Stock Exchange for $25 million.

Blockbuster Inc., up 6 cents at 79 cents

The video rental chain shored up its financial position, eliminating exposure to the letters of credit it held for Viacom.

Zale Corp., down 24 cents at $2.99

CEO Neal Goldberg and other top executives abrupty left the company after a troubled holiday shopping season and falling sales.

Tyson Foods Inc., up 73 cents at $14.04

Profit margins at the meat producer’s chicken unit could climb, as could shares, said a Credit Suisse analyst, upgrading the company.

Williams Sonoma Inc., down $1.01 at $21.74

The housewares retailer lifted its view after holiday sales jumped, but tepid government data on retail sales stymied shares.

NASDAQ:

Netflix Inc., down $2.97 at $50.99

A Lazard analyst downgraded the company’s rating on expectations that “recent torrid growth” in subscribers is slowing.

RealNetworks Inc., up 76 cents at $4.62

The digital entertainment company said RealNetworks executive Robert Kimball was replacing founder CEO Rob Glaser.

TerreStar Corp., up 21 cents at $1.26

The Federal Communications Commission granted the wireless communications company a spectrum license, which could help improve coverage.