What happened

Shares of KLA Corporation (KLAC 2.30%) rose 14.3% in May according to data from S&P Global Market Intelligence. The semiconductor equipment company didn't actually have much in the way of new news in May; however, it did report earnings in the last days of April. Unlike other semicaps that have missed earnings due to supply constraints, KLA actually beat for revenue and earnings. Yet with the outlook for semiconductor investment remaining positive even amid macro concerns, KLA found a bid after its valuation had fallen far enough.

So what

In its fiscal third quarter, KLA posted $2.3 billion in revenue, up 27.2%, with adjusted (non-GAAP) earnings per share of $5.13. Both numbers beat analyst expectations. In the release, CEO Rick Wallace said, "The demand environment for KLA products and solutions remains robust amid a persistently challenging supply chain landscape, and we are focused on navigating this environment to consistently meet customer commitments and delivering on our long-term strategic objectives and financial targets."

KLA is far and away the leader in process control equipment, which scans wafers and semiconductors for imperfections, making this equipment absolutely crucial to leading-edge semiconductor production. As more and more steps are required to produce leading-edge semiconductors, process control needs to be implemented at every step of the technically difficult process in order to ensure quality yields.

KLAC Chart

KLAC data by YCharts

Although this report came at the end of April, KLA continued to rise during May, likely because the stock just became too cheap relative to business performance. After falling to around 15 times earnings, the stock appeared to find its footing. Many beaten-down tech stocks seemed to find a bottom during the month, at least in the near term, and KLA was no different.

A semiconductor wafer emerges from a pile of ground silicon.

Image source: Getty Images.

Now what

Even at its current P/E ratio of 17.5, KLA seems cheap relative to its high-20% growth rate and high profitability. Although the semiconductor equipment industry has seen three straight years of growth and is known to be cyclical, there doesn't seem to be much cyclicality in KLA's results or outlook. In fact, this year should mark the seventh straight year of growth for KLA, even including the trade war downturn of 2019 and the COVID-19 year of 2020, when other types of equipment stocks saw mild declines.

In its shareholder letter, management also said, "The semiconductor industry has evolved to be significantly more strategic and has an increasingly less cyclical end market mix, with many fundamental drivers advancing the critical nature of semiconductors throughout the global economy."

Semiconductor equipment stocks tend to trade at lower multiples than the broader overall market, due to their performance in past cycles; however, if KLA management turns out to be right, and the semiconductor industry becomes more of a steady growth industry, it's possible shares could re-rate higher at some point. One might think after seven straight years of growth, KLA would have shed that reputation. While it's true KLA does trade at a bit of a higher valuation than other equipment stocks in etch and deposition, its mid-teens multiple and low-teens forward multiple still seem far too low for a growth stock. Perhaps the market is beginning to come around.