Semtech stock pulls back as AI growth expectations stay high

Published on 09/23/2026 at 08:11 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Semtech stock closed at USD 177.37 on September 21, 2026, down 4.12 percent, while quarterly revenue reached USD 342 million. Data center sales rose 91 percent year over year.

SMTC, US8316371079, Illustration mit AI erstellt.

Semtech Corporation (US8316371079) closed at USD 177.37 on Nasdaq on September 21, 2026, down USD 7.63 or 4.12 percent from the prior close. The stock remains close to its 52-week high of USD 190.64, while the latest quarterly figures keep AI data center demand at the center of the investment case.

Revenue reaches USD 342 million

In fiscal second-quarter 2027, Semtech reported record revenue of approximately USD 342 million, up 17 percent from the prior quarter and 33 percent from the year-earlier period, according to Tickeron on September 22, 2026. Adjusted diluted earnings per share reached USD 0.71, up 39 percent sequentially and 73 percent year over year.

The strongest operating comparison came from data center revenue. The segment generated a record USD 100 million in fiscal second-quarter 2027, up 39 percent sequentially and 91 percent year over year, while LoRa-enabled revenue reached a record USD 58 million, according to Tickeron.

Guidance points to another step

Management guided fiscal third-quarter net sales to approximately USD 410 million at the midpoint, which would represent about 20 percent sequential growth and 54 percent year-over-year growth. Data center revenue was expected to increase approximately 45 percent sequentially, according to Tickeron on September 22, 2026.

The market is also pricing in a demanding growth path. MarketBeat listed a consensus price target of USD 204.71 and a Moderate Buy rating as of September 21, 2026, while its valuation data showed a trailing price-to-earnings ratio of 117.46. That combination links the bullish data center thesis with a high valuation sensitivity if quarterly execution slows.

Stock stays below the yearly high

MarketBeat recorded a 52-week range of USD 57.50 to USD 190.64, volume of 4.65 million shares and market capitalization of USD 16.55 billion as of September 21, 2026. The closing price was therefore USD 13.27 below the reported 52-week high, a gap of 6.96 percent calculated from those values.

Stifel reiterated a Buy rating and a USD 188 price target on September 22, 2026, according to Investing.com. Seaport Research separately initiated coverage with a Buy rating and a USD 200 price target on September 22, 2026, as reported by TipRanks.

High expectations meet execution risk

The figures show why data center products are the decisive operating variable: USD 100 million of quarterly data center revenue grew 91 percent year over year, while fiscal third-quarter guidance called for approximately USD 410 million of total sales. The counter-factor is valuation, with a trailing P/E ratio of 117.46 and a market capitalization of USD 16.55 billion as of September 21, 2026.

Price data from MarketBeat show Semtech at USD 177.37 on Nasdaq at 4:00 p.m. Eastern Time on September 21, 2026, with a daily decline of 4.12 percent. The stock's next move will be measured against the USD 190.64 52-week high and the execution implied by the fiscal third-quarter sales outlook.