Coherent Sinks 11%, Applied Optoelectronics Falls 10%, Lumentum Drops 9% as Traders Question AI Spending Spree
Optics stocks that soared triple digits this year are getting hammered Tuesday, and the reason traces back to a single line in Alphabet
Archived explainer. For the current picture see today's AAOI page.
APPLIED OPTOELECTRON (AAOI) is down -11.51% in the latest session. Our newswire has captured 1 story on AAOI across 1 source in the last 36 hours, with AI sentiment reading bearish (avg 34/100).
AAOI stock fell 11.51% to $86.56 on Tuesday, driven by a sharp decline in optics and semiconductor-related equities following a line in Alphabet’s earnings report that cast doubt on the pace of AI spending. The stock opened with a 4.3% gap down and continued to weaken throughout the session, reaching a low of $81.54 before settling near $86.61. The move reflects broader investor skepticism about near-term demand for high-end optical components used in AI infrastructure.
The stock’s sharp decline came amid a broader selloff in optics and laser companies, including Coherent and Lumentum. A single line in Alphabet’s earnings report, which suggested the company was “careful with capital spending” on AI infrastructure, triggered a reassessment of the sector’s growth trajectory. Applied Optoelectronics, which has seen a triple-digit rise this year, is now under pressure as traders scale back expectations for near-term revenue from AI-driven demand.
The stock’s intraday performance showed a rapid deterioration in sentiment. After opening at $93.64, the stock dropped more than $12 by mid-morning and traded in a narrow range for the remainder of the session. Volume so far has reached 6.3 million shares, more than half the 3-month daily average, indicating increased participation in the decline.
AAOI has a market cap of $8.0 billion and remains unprofitable, with a trailing 12-month EPS of -0.66 and a net margin of -8.5%. Revenue has grown 64.3% in the past year, but the stock’s high beta of 3.69 makes it particularly sensitive to shifts in market sentiment. Over the last eight sessions, the stock has fallen 5.6% from $103.67 to $97.82. Recent insider transactions also show a pattern of selling, with 20 reported sales totaling $87.5 million in the last 90 days.
The company is not scheduled to report earnings in the near term, but coverage breadth and sentiment will be key to watch. With optics stocks now facing renewed scrutiny, further downward pressure could follow if AI spending expectations remain subdued.
AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Not financial advice.
Optics stocks that soared triple digits this year are getting hammered Tuesday, and the reason traces back to a single line in Alphabet
More on AAOI: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.
Earlier AAOI move explainers: 2026-07-29 · 2026-07-28 · 2026-07-24 · 2026-07-23 · 2026-07-22 · 2026-07-14 · 2026-07-13