<div id="readability-page-1" class="page"><div> <h2>Key Points</h2><ul><li>Vicor's raised guidance signals strong demand for AI infrastructure, and that's good news for Aehr Test Systems.</li><li>Recent large orders mean Aehr has already exceeded expectations. in 2026. </li><li>10 stocks we like better than Aehr Test Systems ›</li></ul>Aehr Test Systems (NASDAQ: AEHR) stock soared by 16.2% as of late afternoon today. The move comes as power systems company Vicor (NASDAQ: VICR) unexpectedly raised its second-quarter revenue guidance, just a month after reporting its first-quarter earnings. It's good news for the AI infrastructure sector and, in turn, Aehr Test Systems. <h2>Vicor updates guidance</h2>The company makes &#34;modular power components and power systems for converting electrical power,&#34; and its advanced products solutions are mainly sold to hyperscalers and data centers that use them to deliver power across data center infrastructure. Vicor raised guidance on the back of &#34;rising product revenues and royalties from an additional licensee to its patented power system technology.&#34; Will AI create the world's first trillionaire? Our team just released a report on the one little-known company, called an &#34;Indispensable Monopoly&#34; providing the critical technology Nvidia and Intel both need. Continue »If demand for data center-related power solutions is accelerating, then it will also be the case for power chip manufacturers, and ultimately for Aehr Test Systems. The wafer-level burn-in (WLBI) test equipment company is aggressively growing its sales to the AI infrastructure sector via test equipment for power semiconductors and AI processors.<h2>Aehr's order book is exploding</h2> In fact, Aehr reported a $41 million order from its lead hyperscaler customer about a month ago. The order took Aehr's orders to over $92 million in the second half of its fiscal 2026, a figure significantly above its previous guidance for the high end of its $60 million to $80 million range. If the Vicor news reads across as further strengthening in AI data center-related spending, then don't be surprised if Aehr receives more orders in due course.<img src="https://imageproxy.pbkrs.com/https://g.foolcdn.com/image//query-dXJsPWh0dHBzOi8vZy5mb29sY2RuLmNvbS9lZGl0b3JpYWwvaW1hZ2VzLzg3MTczOC9nZXR0eWltYWdlcy0xMzg4MDMxNTU3LTEyMDB4ODU3LWViOTc1OTEuanBnJnc9NzAw?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" width="700" height="499" original-src="https://imageproxy.pbkrs.com/https://g.foolcdn.com/image//query-dXJsPWh0dHBzOi8vZy5mb29sY2RuLmNvbS9lZGl0b3JpYWwvaW1hZ2VzLzg3MTczOC9nZXR0eWltYWdlcy0xMzg4MDMxNTU3LTEyMDB4ODU3LWViOTc1OTEuanBnJnc9NzAw"/>Image source: Getty Images. Still, given that Aehr is a couple of years away from profitability, it will need to keep receiving orders to fully convince investors it's on the right track. <h2>Should you buy stock in Aehr Test Systems right now?</h2> Before you buy stock in Aehr Test Systems, consider this: The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Aehr Test Systems wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years. Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $477,813!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,320,088!* Now, it’s worth noting Stock Advisor’s total average return is 986% — a market-crushing outperformance compared to 208% for the S&amp;P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors. See the 10 stocks » *Stock Advisor returns as of May 26, 2026. Lee Samaha has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc. </div></div>

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Aehr Test Systems (NASDAQ: AEHR) shares surged by 16.2% following Vicor's unexpected revenue guidance increase, indicating strong demand for AI infrastructure. Aehr's recent large orders have exceeded expectations, with over $92 million in orders for the second half of fiscal 2026. The company is expanding its sales in the AI sector, particularly for power semiconductors and processors, although it remains a few years from profitability.

Here's Why Aehr Test Systems Popped Higher Today