Health score, price, valuation, risk signals, and key metrics at a glance.
Aehr Test Systems, Inc. provides test solutions for testing, burn-in, and semiconductor devices at wafer level, singulated die, and package level in the United States, Asia, Europe, and the Middle East. The company offers FOX-XP and FOX-NP systems, which are full wafer contact and singulated die/module test and burn-in systems that test, burn-in, and stabilize a range of devices, including silicon carbide-based (SIC) and gallium nitride (GAN) power semiconductors; 2D and 3D sensors used in mobile phones, tablets, and other computing devices; memory semiconductors; processors; microcontrollers; systems-on-a-chip; and photonics and integrated optical devices used in AI. It also provides the FOX-CP system, a single-wafer compact test solution for logic, memory, and photonic devices; and the FOX WaferPak Contactor, a full wafer contactor capable of testing wafers up to 300mm that enables integrated circuit manufacturers to perform test, burn-in, and stabilization of full wafers on the FOX-P systems. In addition, the company offers the FOX DiePak Carrier, which allows testing, burn-in, and stabilization of singulated bare die and modules; FOX WaferPak Aligner; and FOX DiePak Loader. Further, it provides system installation and repair, applications engineering support, spare parts inventories, customer training, and documentation services. The company sells its products in the United States, Germany, Japan, the Philippines, and Taiwan through distributors and sales representatives. It serves semiconductor manufacturers, semiconductor contract assemblies, electronics manufacturers, and burn-in and test service companies. Aehr Test Systems, Inc. was incorporated in 1977 and is headquartered in Fremont, California.
Strongest: Balance Sheet & Red Flags (15/25); weakest: Growth (3/25).
Today's multiple positioned against its own trailing range — a visual premium/discount check.
Currently below its 14-quarter median.
Currently above its 20-quarter median.
Data-driven signals worth keeping an eye on across the last 8 quarters
The company posted negative operating margins in recent quarters — core operations are unprofitable.
Free cash flow has been negative in 6 of the last 8 quarters — earnings are not translating to cash.
as of May 2026
Revenue, EBITDA, operating income, net income, EPS, and shares
Gross, EBITDA, operating, and net margin trends
P/E, P/S, P/B, EV/EBITDA, FCF yield, and earnings yield
Total assets, cash, debt, book value, and leverage
Operating cash flow, free cash flow, FCF margin, and earnings quality
Currently above its 20-quarter median.
TTM revenue has contracted 10.7% — significant decline indicating deteriorating demand.
The last 6 consecutive quarters had negative FCF — the company is burning cash and may need external funding.
Shares outstanding increased 9.5% — significant dilution, likely from stock compensation or capital raises.