Key Highlights

  • MACOM Technology Solutions (NASDAQ:MTSI) was trading down 7.45% at USD 227.45 on Friday, November 13, 2026, in market data, and no company announcement explaining the move was found.
  • Fiscal fourth-quarter Revenue was USD 424.8 million, up 62.7% year on year and above the USD 420.2 million consensus, while adjusted Earnings Per Share were USD 2.09 against USD 2.00 expected.
  • Data center revenue reached USD 188.1 million, up 37% from the prior quarter, and December-quarter adjusted earnings per share were guided to a range of USD 2.21 to USD 2.29.
  • The shares peaked at USD 353.54 on October 6 and touched USD 209.51 on November 4, the day before results; today's price is about 35.7% below that peak (calculated).

Results Beat, but the Stock Had Already Slid

The company reported fiscal fourth-quarter and full-year 2026 results on November 5, 2026. Adjusted EPS of USD 2.09 beat the USD 2.00 consensus by about 3%, and revenue of USD 424.8 million landed at the top of management's USD 415 million to USD 425 million guide. GAAP EPS was USD 1.78, which includes a USD 19.4 million unrealized Investment gain that the adjusted figure excludes. MACOM Technology Solutions (NASDAQ:MTSI) designs high-performance analog, RF and optical chips used in data centers, telecom networks and defense systems. Adjusted gross Margin was 61.3% and adjusted Operating Margin was 38.2%.

Data Center Momentum Against Telecom and Cost Pressure

Data center revenue of USD 188.1 million rose 37% sequentially, and management lifted its fiscal 2027 Data Center growth base case to roughly 80%. Industrial and defense revenue grew 27.8% in fiscal 2026, while telecom grew about 1% sequentially and is guided flat to slightly lower for the December quarter. Book-to-bill fell to 1.4, Capital spending is rising to USD 100 million to USD 110 million, the non-GAAP tax rate is heading to about 6% and gross margin gains are expected to slow. Management cited about USD 2 billion of fiscal 2027 revenue and about USD 10 of EPS, which published coverage treats as ambitions, not formal guidance.

No Verified Driver for the November 13 Decline

No company announcement explaining today's move was found, and the screener move is the figure of record only for the live session. Chip and AI-infrastructure shares have been volatile since the Nasdaq Composite fell about 5.5% on November 5, according to published market data, and Nvidia's board opened a review of its chief executive on November 8. A documented sector or market-wide cause for November 13 itself was not found, so none is asserted here. Operating Cash Flow was USD 357 million for the year and net cash was USD 451.7 million, a cushion against a stock that fell about 40.7% from its October peak to its November 4 low (calculated).

Where Things Stand

Yes, the shares were trading 7.45% lower despite 62.7% revenue growth, and no company-specific reason was found. MACOM Technology Solutions (NASDAQ:MTSI) reported a clean beat and a higher December-quarter outlook on November 5, yet the stock had already fallen sharply into the print. One possible explanation is sentiment around chip and AI-infrastructure shares, but that is not verified. Watch the December-quarter report, data center order cadence and the capital spending step-up.