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Corning shares fall 18 percent after earnings, leading slide in optics stocks

Corning shares fell 18 percent on July 28 after the company reported second-quarter results that beat expectations but issued a current-quarter revenue outlook below Wall Street forecasts. The decline spilled over to other optics components stocks, with Marvell, Lumentum, AXT and Coherent also posting double-digit losses. Corning projected core revenue of $4.9 billion to $5.0 billion for the quarter, versus a $5.0 billion estimate.