GrowthTurtle
Data Science PhD & IEEE Fellow, Ex-Two Sigma
Keysight looks expensive against its earnings at $319.45, about 16% above the top of a $216-275 fair range. It trades at 23x forward earnings versus the industry's usual 18x, and that multiple leans on a forecast 259% above trailing earnings. This is a levels-only read from reported earnings and estimates, without fundamental work. x.comÂ
Advantest looks expensive even on peak-cycle earnings, at about 40 times its 2028 earnings. @holden_commodor argues testing is the ultimate semiconductor bottleneck after memory, with Advantest dominant ahead of Teradyne, and would buy if the drop continues. x.comÂ
Keysight is the photonics test stock to buy now because the 1.6T production ramp, where the big checks get cashed, has not yet peaked and Keysight is the least exposed to a major correction. It reported $1.6B in revenue with 30% year-over-year growth projected for Q2, and is buying back $1.5B of stock because it sees the 1.6T cycle lasting through 2028. Its diversified $57B market cap makes it safer than Aehr, which has run too far too fast; Goldman has a $384 target. x.comÂ
Keysight has an overlooked moat: before any hardware innovation such as AI chips, 5G/6G or EVs reaches the market, it must be tested and meet strict standards, and Keysight owns that critical testing market with a unique mix of hardware and software. Rather than guessing which tech company will win, investors can own the one that tests them all. The stock is up 69% YTD. x.comÂ
Keysight's gross margin expanding on fast revenue growth shows real chokepoint pricing power in AI test. Q3 FY26 gross margin reached about 69%, up roughly 140-150 bp from Q2's clean 67.6%, as revenue grew 36.5% to $1,846M; operating margin hit 33.2%, above its 31-32% long-term target. Orders rose 56% to $2,091M, though book-to-bill narrowed to 1.13, and Q4 EPS guidance of $3.34-3.40 tops the ~$2.68 consensus. Management says it spans pre-silicon design through manufacturing. x.com x.com x.comÂ
