Key Highlights

  • The stock traded 7.66% lower at USD 145.76 during Friday's session, November 13, 2026, which backs out to roughly USD 157.85 for the prior close (calculated), versus USD 178.75 on October 26, 2026 in market data.
  • Third-quarter revenue, announced November 2, 2026, reached USD 526.2 million, a 33% increase from USD 395.7 million, while adjusted Earnings of USD 1.05 per share landed just under a USD 1.06 forecast.
  • Guidance for the fourth quarter centres on roughly USD 600 million, with a 5% band either way, versus a USD 579.7 million consensus that published coverage referenced.
  • Management is aiming for a fourth-quarter annualized silicon photonics run rate of about USD 1.1 billion, which would be roughly five times the 2025 full-year figure for that line.

A Record Quarter Followed by a Sharp Sell-Off Day

Tower Semiconductor (NASDAQ:TSEM) was quoted 7.66% lower at USD 145.76 on Friday, November 13, 2026, per market data. Nothing dated November 11 to 13 explains the decline, so the reading covers only the live session. Record third-quarter numbers were released on November 2, 2026. Revenue came in at USD 526.2 million, ahead of a USD 522.1 million consensus, while adjusted EPS of USD 1.05 fell short of a USD 1.06 forecast by a hair, per published coverage. The headline of the release also highlighted a record fourth-quarter outlook that would push 2026 revenue to about USD 2 billion.

Photonics Ramp and Cash Spending Behind the Growth Push

Tower Semiconductor (NASDAQ:TSEM) is a specialty analog foundry making chips to order, and it also trades in Tel Aviv. Gross Profit reached USD 178.8 million, up about 92% year on year, while operating profit before one-time items came to USD 127.1 million against USD 50.6 million, and adjusted net profit hit USD 131.3 million. Leadership calls this the strongest growth phase in the company's history and is targeting a fourth-quarter silicon photonics run rate near USD 1.1 billion. Operating Cash Flow of USD 185.2 million was outrun by USD 190.7 million of property and equipment investment, so spending on equipment consumed all of that cash and then some.

A Stock Trading Far Under Its High Despite the Guidance

For Tower Semiconductor (NASDAQ:TSEM), the 52-week span in market data runs from USD 77.04 up to USD 319.94, which leaves USD 145.76 roughly 54% under the peak (calculated). Shares climbed roughly 4.5% in premarket trading on November 2, but that early gain did not hold and the stock has since slid. On November 5, 2026, AI stocks sold off broadly, pulling the S&P 500 lower by 4.4% while Nvidia shed 9.3%, and a rebound came on November 9. No confirmed driver for November 12 to 13 turned up. Key concerns are reliance on AI optics customers, a large Capital budget, a slim EPS shortfall and a lofty valuation, with market data putting the trailing multiple near 70 times as of October 26. Separately, market data mentioned a broadened silicon-germanium alliance with Semtech around October 12 to 13 for data centre analog links, along with high-volume shipments of laser-integrated optical engine chips that began around September 17.

Where Things Stand

A guidance beat does not insulate a share price from a sector-wide reset, and no company-specific Factor explains today's 7.66% decline. Tower Semiconductor (NASDAQ:TSEM) posted record revenue, guided to a record fourth quarter and laid out a growing silicon photonics plan, though its shares remain far beneath their 52-week peak and have moved in step with other AI hardware names. Investors will next check whether the roughly USD 600 million quarter arrives as guided, how photonics capacity grows and what the expansion costs in cash.