Coherent slumps 13% amid broader tech sector weakness
COHR stock plunges nearly 13% as Coherent reverses September rally.
Archived explainer. For the current picture see today's COHR page.
COHERENT CORP (COHR) is down -12.73% in the latest session. Our newswire has captured 3 stories on COHR across 3 sources in the last 36 hours, with AI sentiment reading bearish (avg 36/100).
COHR stock fell 12.73% to $266.50 on Monday, driven by a broader selloff in the tech sector and a sharp intraday decline following a significant gap down at the open. The stock reversed a recent rally and traded near its session low in afternoon trading, amid a market environment marked by caution over AI development and rising bond yields.
The stock opened at $287.58, a 5.8% drop from its prior close, and continued to fall throughout the session, hitting a low of $265.49. The decline came amid broader weakness in the tech sector, with multiple semiconductor and optics-related firms falling sharply. Coherent’s stock has been volatile in recent months, having traded as high as $440.00 in the 52-week period, but it has struggled to maintain its momentum. The selloff appears to be part of a broader trend affecting high-growth tech stocks, as investors react to calls for a slowdown in AI development and rising interest rates.
Recent insider transactions also reflect a bearish tone, with eight separate sales reported in the last 90 days, totaling $7.8 million. These include sales by the Chief Strategy and Legal Officer, a director, and the CTO. Additionally, several members of Congress have sold shares in the stock, with the most recent trades reported in late August and early September.
The stock’s intraday volume of 7.5 million shares is 1.2 times its 3-month average, indicating heightened selling pressure. The session’s low point came at 3:55 PM ET, with the stock closing near $269.50. The stock also printed 22 fresh 52-week lows on the day, highlighting the depth of the selloff. Coherent’s fundamentals remain strong, with a revenue growth rate of 22.5% in the trailing twelve months and a net margin of 11.3%. However, its high P/E ratio of 74.1 and beta of 2.10 make it particularly sensitive to market volatility and interest rate shifts.
The stock is currently trading near the lower end of its 52-week range. Investors should monitor the broader market for signs of stabilization, as well as any upcoming corporate actions or earnings reports that could influence the stock’s direction.
AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.
COHR stock plunges nearly 13% as Coherent reverses September rally.
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Why is Coherent stock sliding today?
More on COHR: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.
Earlier COHR move explainers: 2026-09-14 · 2026-09-08 · 2026-09-04 · 2026-08-25 · 2026-08-24 · 2026-08-19 · 2026-08-18 · 2026-08-17 · 2026-08-10 · 2026-08-07 · 2026-08-04 · 2026-08-03 · 2026-07-28 · 2026-07-24 · 2026-07-14 · 2026-07-13