CrowdStrike Holdings Inc. fell in early trading on Wednesday after the cybersecurity company issued a weaker-than-expected earnings forecast, disappointing investors who have been watching for signs that it has recovered from a flawed update that crashed computers around the world.

CrowdStrike CRWD0.17%increase; green up pointing triangle swung to a loss in the third quarter, dragged down by expected headwinds following one of the worst computer outages ever, though the company raised its fiscal-year outlook and posted higher revenue ...