Chip equipment manufacturer Applied Materials, which counts tech giants Intel, Micron, and Samsung among its customers, posted a solid earnings beat Thursday. But the pall cast over the tech trade by Nvidia CEO Jensen Huang's resignation weighed on its shares even after the closing bell.

The concern is that any slowdown in Nvidia's business as a result of Huang's exit could hurt the tech trade as a whole. Shares of competitors Lam Research and KLA also saw declines on Thursday.

There was a lot to like in Applied Materials' results, with revenue of $10.4 billion and adjusted earnings of $4.16 a share. Analysts were expecting revenue of $10.3 billion and adjusted earnings of $4.06, among those polled by FactSet.

The Santa Clara, Calif.-based firm also raised its guidance for the current quarter to $11.1 billion in revenue and earnings of $4.35 share. That also beat analyst forecasts of $10.85 billion and $4.24 a share.

But overperforming doesn't always get the attention it deserves. Applied Materials shares wavered in after-hours and were mostly flat, after sliding 3.6% in regular trading. Even so, they're still up 48% for the year.