Amphenol (APH) Stock Jumps 9% After Record Q1 Sales and Strong Q2 Guidance

TLDR

• Amphenol jumped over 9% in premarket after beating Q1 estimates on both revenue and earnings
• Q1 revenue hit $7.62B, up 58.4% year-over-year, with adjusted EPS of $1.06 vs. $0.94 expected
• Record orders in Q1 with a book-to-bill ratio of 1.24:1
• Q2 guidance of $8.1B–$8.2B in revenue tops the $7.7B Wall Street estimate
• The $10.5B CommScope acquisition in January boosted fiber-optic and data center connectivity offerings

Amphenol posted record sales and earnings in Q1 2026, sending the stock sharply higher in premarket trading Wednesday.

Amphenol Corporation, APH

Revenue came in at $7.62B for the quarter ended March 31, up 58.4% from the same period last year. That beat the analyst estimate of $7.08B by a wide margin.

Adjusted earnings per share came in at $1.06, topping the $0.94 consensus estimate. Adjusted operating margin reached 27.3% for the period.

Operating cash flow was $1.1B for the quarter. Free cash flow came in at $831M.

CEO R. Adam Norwitt said the company closed the quarter with record sales and adjusted diluted EPS, both exceeding the high end of guidance. He pointed to strong organic growth across most end markets.

The IT datacom market was called out specifically, with Norwitt describing growth there as “exceptional.” Demand for connectors and sensor systems has surged as tech companies build out data center infrastructure for AI workloads.

Record Orders and a Strong Book-to-Bill

Amphenol also booked record orders in Q1, resulting in a book-to-bill ratio of 1.24:1. That number means Amphenol is taking in more orders than it ships — a healthy sign for near-term demand.

Q2 guidance was equally strong. Amphenol forecast adjusted EPS of $1.14 to $1.16 for the second quarter, ahead of the $1.05 analyst estimate.

Revenue guidance for Q2 came in at $8.1B to $8.2B. Wall Street had expected $7.7B.

CommScope Deal Adds Weight

In January, Amphenol closed a $10.5B acquisition of CommScope’s Connectivity and Cable Solutions business. The deal expanded its capabilities in fiber-optic and data center connectivity products.

That acquisition contributed to the year-over-year revenue jump alongside organic growth. Norwitt credited both the organic performance and the acquisition program in his statement.

The company will host a conference call at 1 p.m. EST to discuss the full results.

Premarket gains were sitting at over 9% as of early Wednesday morning, with the stock reacting positively across the board to both the Q1 beat and the Q2 outlook.

Amphenol’s Q2 revenue forecast of up to $8.2B compares to LSEG-compiled analyst estimates of $7.69B — a gap of roughly $500M at the midpoint.

Adjusted operating margin of 27.3% in Q1 reflects continued profitability discipline alongside rapid top-line growth.

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