Outlook roundup: Savvis, National Instruments

Among the earnings projection stories for Tuesday, April 29, from AP Financial News:

ST. LOUIS (AP) _ After posting first-quarter sales below Wall Street's expectations, computer network service provider Savvis Inc. forecast full-year revenue well below analysts' estimates Tuesday, sending shares sharply lower after hours.

AUSTIN, Texas (AP) _ Analysis software company National Instruments Corp. said Tuesday it forecasts second-quarter profit in range of Wall Street expectations.

MINNEAPOLIS (AP) _ Medical device maker American Medical Systems Holdings Inc. affirmed its full-year earnings outlook Tuesday, after reporting that first-quarter profit more than doubled.

DETROIT (AP) _ A few months ago, everything seemed to be going GM's way: the company had just struck a cost-saving labor deal, its new Chevrolet Malibu was winning plaudits and it still occupied the rank of the world's top-selling automaker.

ST. LOUIS (AP) _ Express Scripts Inc., a pharmacy-benefits manager, on Tuesday raised its estimate for full-year earnings from continuing operations to between $2.95 and $3.03 per share.