Standard & Poor’s 500 Index futures expiring in March fell less than 0.1 percent to 1,322.6.

Acme Packet Inc. (APKT) slumped 9.7 percent to $27.89. The maker of devices that help transmit voice and data over Interner networks said fourth-quarter earnings excluding some items were 26 cents a share, missing the average analyst estimate by 2 cents, Bloomberg data show.

Intermec Inc. (IN) : The maker of hand-held scanners reported a fourth-quarter profit of 13 cents a share, missing the average analyst estimate by 29 percent, according to data compiled by Bloomberg.

Sunoco Inc. (SUN) advanced 2.1 percent to $39.05. Chief Executive Officer Lynn Elsenhans, who led the Philadelphia company’s exit from refining, will step down March 1. Chief Financial Officer Brian P. McDonald, 46, will take over as chief executive March 1 and as chairman May 1 as the company continues with its plans to sell or close its last two refineries in Philadelphia and Marcus Hook, Pennsylvania.

THQ Inc. (THQI) slid 28 percent to 55 cents. The publisher of wrestling and martial arts video games reported third-quarter profit of 35 cents a share, missing the average analyst estimate by 53 percent, according to data compiled by Bloomberg.

Trimble Navigation Ltd. (TRMB) rallied 14 percent to $54.97. The maker of global-positioning products said it expects profit of at least 61 cents excluding some items in the first quarter. That’s higher than the average analyst estimate of 58 cents in a Bloomberg survey.

To contact the reporter on this story: Nikolaj Gammeltoft in New York at ngammeltoft@bloomberg.net

To contact the editor responsible for this story: Nick Baker at nbaker7@bloomberg.net.

http://www.bloomberg.com/news/2012-02-02/acme-packet-intermec-sunoco-trimble-navigation-u-s-equity-preview.html

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