- AEHR
- KLAC
Choosing between a niche equipment provider and a diversified industry titan requires balancing high growth potential against established stability. Here is how Aehr Test Systems (NASDAQ:AEHR) and KLA (NASDAQ:KLAC) compare for investors.
Aehr Test Systems focuses on specific stress-testing solutions for power semiconductors and memory, while KLA provides broad process control tools used across the entire chip-making industry. While they both operate in the same sector, their scale and risk profiles differ significantly, making them attractive to different types of portfolios.
The case for Aehr Test Systems
Aehr Test Systems designs and sells specialized equipment for the testing and stabilization of semiconductor products in various forms, including wafers and singulated dies. The company focuses on the high-growth silicon carbide market for electric vehicles and high-bandwidth memory for <a href="https://myappsplus.com/better-artificial-intelligence-ai-stock-pick-for-2027-nvidia-versus-micron/" title="Better Artificial Intelligence (AI) Stock Pick for 2027: Nvidia versus Micron”>artificial intelligence infrastructure. In its 2026 fiscal year (FY), which ended May 29, its five largest customers accounted for nearly 70% of net sales, and customer concentration like this adds a layer of risk to the business.
In FY 2026, revenue reached $50.0 million, representing a decline of 15.2% compared to the previous year. This contraction followed a period of higher operating costs, resulting in a net loss of $7.1 million for the period. The net margin, which represents the percentage of revenue remaining as profit after all expenses, was -14.3% in the latest fiscal year.
As of its May 2026 balance sheet, the debt-to-equity ratio is zero, indicating that the company has no debt relative to its shareholder equity. The current ratio, which measures a company’s ability to cover short-term liabilities with short-term assets, is 10.3x. Free cash flow, defined as cash from operations minus capital expenditures, was a negative $5.4 million for the fiscal year ended in May.
The case for KLA
KLA develops equipment and services for advanced process control, helping manufacturers identify defects during the chip-making process to improve production yields. Taiwan Semiconductor Manufacturing Company is a major customer, accounting for more than 10% of total revenues, and customer concentration like this adds a layer of risk to the business. Beyond equipment sales, the company maintains a steady services business that accounts for roughly 23% of its total revenue.
In FY 2026, ended June 30, revenue reached $13.6 billion, an increase of 11.7% over the prior year. This growth supported a net income $4.8 billion, showcasing the company’s ability to scale operations profitably. The net margin for the fiscal year was 35.6%, suggesting that more than a third of every dollar earned in revenue was retained as profit.
