Aehr Test Systems vs Lightwave Logic
Aehr Test Systems reported revenue of $50 million in fiscal 2026, 250.0 times Lightwave Logic's $0 million in fiscal 2025. Aehr Test Systems' revenue fell 15.2% in its latest year, and Lightwave Logic's grew 147.7%. Aehr Test Systems had an operating margin of -28.3%, against -8765.5% at Lightwave Logic. Free cash flow was −$5 million at Aehr Test Systems and −$15 million at Lightwave Logic. Their fiscal years end in different months (May 29 and December 31), so the periods don't line up exactly.
Side by side
| Aehr Test Systems | Lightwave Logic | |
|---|---|---|
| Latest fiscal year | FY2026, May 29, 2026 | FY2025, Dec 31, 2025 |
| Revenue | $50M | $0M |
| Revenue growth | −15.2% | 147.7% |
| Revenue growth a year, last 5 years | 24.7% | — |
| Gross margin | 35.3% | 97.1% |
| Operating margin | −28.3% | −8,765.5% |
| Net margin | −14.2% | −8,576.5% |
| Free cash flow | −$5M | −$15M |
| Free cash flow margin | −10.8% | −6,367.2% |
| Return on capital | −11.1% | — |
| Net debt to EBITDA | — | — |
| Dividends and buybacks | $0M | $0M |
| Change in diluted share count | 3.7% | 6.7% |
| Last close | $53.57 | $4.37 |
| P/E at the last close | — | — |
| Insider trades, last 12 months | sold $60.4 million | sold $1.4 million |
| Piotroski F-score | 2 of 9 | — |
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.
Ten years
Revenue
US$ billions, fiscal years
Aehr Test SystemsLightwave Logic
Operating margin
Percent of revenue
Aehr Test SystemsLightwave Logic
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
Aehr Test SystemsLightwave Logic
Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Aehr Test Systems and Lightwave Logic pages.