New York, Feb 4, 2026, 19:06 EST — After-hours
- Amphenol finished down 11.6% at $130, following a volatile session.
- Wall Street’s sell-off in AI-linked (artificial intelligence) tech dragged the Nasdaq down.
- Attention shifts to Thursday’s follow-through and upcoming data on growth and demand.
Amphenol Corp shares plunged 11.6% to roughly $130 by the close on Wednesday, then held steady in after-hours trading.
This matters because many investors saw Amphenol as a winner in AI infrastructure due to its ties to data and communications gear. A drop this sharp can quickly shift positioning, especially ahead of the next session.
The week ahead will reveal if the selloff is spilling beyond headline AI stocks into suppliers and the wider industrial-tech sector, or if buyers step in swiftly.
U.S. shares slipped Wednesday amid worries over lofty valuations and doubts that the AI-driven rally might be running out of steam. The Nasdaq dropped 1.51%, but the Dow managed a 0.53% gain, Reuters reported. “The market is suddenly skeptical and concerned about it,” said Jed Ellerbroek, portfolio manager at Argent Capital. 1
Amphenol’s stock swung wildly during the session. It kicked off around $146.81, climbed to a peak of $148.19, then dropped sharply to $129.40. Trading volume hit roughly 21.3 million shares.
The decline coincided with a wider slump in tech-related hardware and components. TE Connectivity, a peer, slid 4.7% during the session, market data showed.
The sell-off clashes with the company’s upbeat late-January update. Amphenol posted record results for both the fourth quarter and full year 2025. It also projected first-quarter 2026 sales between $6.90 billion and $7.00 billion, with adjusted diluted EPS expected to come in at $0.91 to $0.93. 2
“We are pleased to have closed 2025 with record fourth quarter and full-year sales and Adjusted Diluted EPS,” CEO R. Adam Norwitt said in the results statement. 2
Amphenol noted that its acquisition of CommScope’s Connectivity and Cable Solutions unit, finalized in January, should contribute around $900 million in sales for the first quarter and add about $0.02 to adjusted EPS. The deal is also projected to drive approximately $4.1 billion in sales for the full year 2026. 2
The risk is clear: expectations are elevated, and even a slight sign that demand is easing—or that growth is leaning more on acquisitions than on “organic” gains (excluding deals and currency fluctuations)—could keep the stock under pressure.
On Thursday, investors are keeping an eye on whether the slide in AI-related stocks persists and if new macroeconomic data alters market mood. Reuters reported the U.S. January jobs report was postponed due to a short government shutdown. 1
After the upcoming session, Amphenol’s next major event is its Q1 earnings report, scheduled for April 29, according to Investing.com. 3
