Materion Corp stock news
On October 7, 2026, Zacks Research downgraded Materion Corporation (NYSE: MTRN) from a "Strong Buy" rating to a "Hold" rating. The downgrade catalyzed a 6.9% drop in Materion's share price to $290.72 as investors engaged in profit--taking following an extended rally that drove the stock to record highs. The rating revision cited elevated valuation levels—with shares trading at approximately 68 times earnings—and notable insider selling over recent months, despite the company maintaining its full--year 2026 adjusted earnings per share guidance of $6.80 to $7.20 ahead of its third--quarter 2026 financial results release scheduled for October 28, 2026.