AAOI vs COHR
AAOI: Applied Optoelectronics is a developer and manufacturer of advanced optical components and modules designed for high-speed fiber-optic data transmission in data centers and broadband networks. COHR: Coherent is a diversified leader in lasers, engineered materials, and networking technologies serving the high-growth industrial, communications, and electronics sectors.
Side-by-side fundamentals
| Metric | AAOI | COHR | Edge |
|---|---|---|---|
| Price as of 2026-10-21 close | $77.32 | $237.53 | |
| Market cap | $6.5B | $46.5B | |
| P/E as of 2026-10-21 | n/a | 57.65 | |
| Net margin | -8.4% | +11.3% | COHR higher |
| Gross margin FY2025, SEC XBRL | +30.0% | n/a | |
| Operating margin | -12.0% | +2.0% | COHR higher |
| ROE | -5.2% | +7.4% | COHR higher |
| ROA | -3.3% | +4.4% | COHR higher |
| Debt / equity filed borrowings, leases excl., balance sheet 2026-06-30 | 0.04 | 0.30 | AAOI lower |
| Revenue growth (YoY) | +82.8% | +22.5% | AAOI higher |
| Revenue CAGR (3y) SEC XBRL | +26.9% | +11.3% | AAOI higher |
| Dividend streak (yrs) SEC XBRL | 0 | n/a | |
| Beta as of 2026-09-03 | 3.89 | 2.73 | |
| 1-year return as of 2026-10-21 close | +131.5% | +96.6% | AAOI higher |
Fundamentals: SEC XBRL company filings for the figures marked with a fiscal year, and market data, as of 2026-09-03 for the rest. Filings: SEC EDGAR. Prices are delayed daily-close data.
Last updated 2026-10-21.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & market data, shown with their as-of date; "Edge" cells are a pure numeric comparison, not a recommendation.