AI Optical Chip Stocks Surge 60% in a Day After Marvel Setback

POET Technologies Inc. (NASDAQ: POET) closed at $22.89 on the 14th, up 59% from the previous day, as trading volume surged to 85.68 million shares. Its market capitalization climbed to about $2.1 billion (roughly ₩2.9 trillion), adding approximately $3 billion (around ₩4 trillion) in a single session.

Intraday on the 14th, the stock repeatedly hit new 52-week highs, briefly breaking above the $18 level, prompting some data and research services to warn of overvaluation and extreme price volatility (investing.com). Earlier this month, the shares plunged 47% in one day after Marvell Technologies canceled an order, but they have since staged a rollercoaster recovery on renewed hopes for AI-driven optical communications demand and a surge in retail and options buying (edgen.tech).

Headquartered in Toronto, Canada, POET Technologies is a fabless optical semiconductor company that integrates electronic and photonic components on a single chip via an optical-interposer-based optical engine, supplying data center and AI networking markets (stockanalysis.com). By focusing on design and packaging technologies rather than large-scale production facilities, the company aims to capture next-generation AI data-center optical communications demand—a strategy that has driven its year-to-date return past 100% and drawn speculative buying (statmuse.com).