Everyone's always talking about NVIDIA, Palantir, Vertiv when it comes to AI plays. But there are some seriously underrated names in this space that deserve way more attention than they're getting.

I've been looking at Photronics (PLAB) lately. Most people don't even know what they do - they make photomasks, basically the stencils that print circuits onto semiconductor wafers. Sounds boring, but here's the thing: as AI chips get more complex, PLAB's role becomes even more critical. They just posted record revenue on the high end, with strong US demand. The stock had a breakout attempt in late February but it didn't hold, which is frustrating from a technical standpoint.

But what caught my eye is the EPS revision picture. Still massively positive, with a big revision hitting in late Feb. And their capex spend tells you everything - jumped from $131M to $188M in their latest fiscal year. They're expanding in the US and South Korea specifically for this AI boom. That's not something you do unless you believe in the cycle.

Then there's Teradyne (TER). These guys make the equipment that tests chips. You can probably guess what's happening - AI chip testing is exploding because, well, AI chips are incredibly complex. The stock is up 40% this year, crushing the broader market. And here's what's not being discussed enough: their EPS outlook is legitimately strong. Zacks has them at Rank 1.

Both of these companies are playing essential roles in the supply chain that nobody really discusses at dinner parties. While they've both pulled back recently, the fundamental picture hasn't changed. The AI infrastructure buildout isn't stopping, and these two are positioned right in the middle of it. Worth keeping on your radar if you're serious about this trade.