Amkor's expansion in advanced packaging supports a bullish growth outlook as that work becomes more important. Packaging accounts for 88% of sales and computing revenue rose 25%; capacity spending explains negative free cash flow. Q3 EPS was $0.76, implying roughly 12x annualized earnings, while Q4 EPS guidance is $0.65-$0.75. The compute opportunity is only starting, despite the decline in mobile. x.com  x.com  x.com  x.com 

Aehr's AI burn-in growth case is intact, but confidence in its competitive edge may need to come down as Teradyne moves into high-power burn-in. Teradyne's Titan HP, already in production, combines system-level test and burn-in and could absorb spending on dedicated tools, pressuring Sonoma orders and pricing. Aehr still won about $6M of follow-on Sonoma orders for a hyperscaler's second AI chip, with no sign FOX-XP is replaced. If the market expands enough, revenue can grow as share falls. … Show more

Aehr remains a concentrated, expensive way to own wafer-level photonics burn-in: its 10-K says silicon-photonics customers primarily drove that revenue growth, and FY2027 guidance of $130m-$150m could nearly triple FY2026 sales, yet shares value it at about 20x the guide. Teradyne's acquired photonic-chip test business is not material to its much larger sales; Aehr's top five customers provided 70% of FY2026 revenue, so orders matter more than the headline CPO opportunity. x.com 

Aehr Test Systems stands to benefit from Broadcom's custom AI chip ramp because these 600W–2kW multi-die packages need burn-in testing. Broadcom said XPU shipments rose 3.5x and laid out $115B of AI revenue in FY27 and $230B in FY28 with supply secured, backed by multi-gigawatt Google, Anthropic, OpenAI and Meta deployments. Aehr won a record $41M package-level burn-in order from its lead hyperscale customer for a custom AI ASIC, with a next-gen device moving to production later this year. x.com 

Aehr Test Systems' FY2027 guidance for 160–200% revenue growth is conservative, built on backlog, pending deals and pilot programs, and it should beat the top end by at least 15–20%, implying about 245% growth. That gives the stock a shot at $150-plus within 12 months, especially if it is on track for $300 million-plus of FY2028 revenue; FY2029 revenue could reach $474 million. The post-earnings fade that erased most of the gains is an opportunity. x.com  x.com 

Aehr Test Systems' valuation looks ahead of its fundamentals after a strong turnaround quarter. Q4 FY2026 revenue rose 33% to $18.8 million with a return to GAAP profit, bookings hit a record $60.7 million and effective backlog topped $100.6 million. FY2027 guidance of $130-150 million implies 160-200% growth, so the post-earnings run prices in high expectations that depend on shipping FOX-XP systems on schedule without margin erosion. TRT is preferred for now. x.com  x.com 

Aehr Test Systems is growing fast across several verticals, with its lead AI processor customer placing another $22M follow-on order for wafer-level burn-in systems. The tiny company is expanding into memory and silicon photonics as well, and at about $1.1B market cap it looks extremely promising, resembling an early Teradyne. x.com 

Optical test makers such as FormFactor, Aehr Test Systems and Viavi should keep growing whichever optical path wins, because every interconnect, pluggable, near-packaged or co-packaged, must be tested. Optical stocks plunged after a June report of CPO shipment delays, and engineers now point to a growing role for near-packaged optics and possible delays in some scale-up CPO. That shifts the question to who benefits as both grow, and testing is the bottleneck behind every other AI bottleneck. … Show more

Aehr Test Systems is key to AI manufacturing and can even be a bottleneck, but at almost 20x revenue through 2028 at the current price, it is stratospherically priced. The risk is giant if something goes wrong for the company or for the AI ramp, and even a slowdown could be deadly at such high valuations. Tech moats are not the same as financial moats. x.com 

Aehr Test Systems has a proven lead in a test step AI optics needs but few can run at scale: high-power wafer-level burn-in for silicon photonics. Co-packaged optics makes it mandatory, since a chip failing after bonding scraps the whole switch, and newer devices need 2-4x more burn-in power. Bookings hit $37.2M, up over 500% in a quarter, at a book-to-bill above 3.5x. Goldman sees optical networking growing from about $15B in 2026 to $154B by 2028, and the test bottleneck forms first. x.com