QD Laser Inc. (6613): Peak Market Cap ¥64.6B, Revenue ¥1.3B, 49 Employees. What It Takes for These Numbers to Make Sense

Quantum-Dot Lasers for AI Data Centers — Physics Works. The Business Is the Question.

Abstract

QD Laser Inc. (TYO: 6613) is among the companies with the longest commercial production track record for quantum dot lasers. At its March 2026 peak, the stock hit a market cap of roughly ¥64.6B (~$430M), but has shown extreme volatility (52-week range: ¥216 to ¥1,546). Annual revenue sits at ¥1.3B (~$8.7M), and the company is operating at a loss…