After-Hours Movers 1/20: Riverbed (RVBD), Cree (CREE), IBM (IBM) Higher; American Superconductor (AMSC), NorthStar (NRF), Analog Devices (ADI) Lower Jan 20, 2009 05:20PM

Riverbed Technology (NASDAQ: RVBD) 9.5% HIGHER; raises its Q4 sales guidance from $87-$90 million to $91-$92 million, versus the consensus of $87.80 million. Non-GAAP EPS for the quarter move from $0.15-$0.17 to $0.18-$0.19, versus the Street estimate of $0.16.

American Superconductor Corporation (NASDAQ: AMSC) 8.4% LOWER; sees Q3 sales in the range of $40-$41 million, versus the consensus of $40.86 million. Lowers its loss guidance for the quarter from ($0.10) to ($0.18)-($0.20), versus the Street estimate of ($0.11). The company attributed the greater than expected net loss primarily to a charge to recognize future estimated cost overruns on one of its turnkey SVC projects, revenue deferred due to higher future estimated AMSC Windtec® engineering costs to complete certain wind turbine design contracts ...