$14.32
$111.98
bear $14.32
base $55.57
bull $111.98
margin of safety $8.50
market price* $79.35
Amphenol makes electrical, electronic and fiber optic connectors and sensors sold into eight end markets, and over the past decade owner earnings - cash generated by operations, less capital spending, less the cost of stock issued to employees - grew from about $0.67 per share in 2016 to $3.32 in 2025. The record is genuinely impressive, but two things qualify it. First, much of that growth was bought rather than grown: across those ten years the company spent roughly $12.2 billion on acquisitions, equal to about three quarters of all the owner earnings it produced, and in January 2026 it closed a $10.5 billion purchase of CommScope's connectivity business, the largest deal in its history. Owner earnings measured this way do not deduct acquisition spending, so the figure overstates what has actually been available to shareholders, and the historical growth rate cannot simply be projected forward. Second, the latest year is exceptional rather than typical: sales rose 52%, operating margin jumped from 20.7% to 25.4%, and sales to data centers alone increased $4.6 billion in a single year, so products tied to artificial-intelligence infrastructure now represent roughly 36% of revenue. Owner earnings roughly doubled in two years on that one wave. Funding the deals also transformed the balance sheet: borrowings net of cash stood near $14.1 billion by mid-2026 against roughly $3.4 billion eighteen months earlier, with interest costs guided to about $800 million for 2026. The bear case assumes the data-centre wave digests and earnings revert to the level the company actually earned in 2023 and 2024 plus the contribution of the newly bought business, then grow only 2% a year, discounted at 12%; that is not a recession assumption but an ordinary turn in the electronics component cycle, a risk this business carries in normal times, and with borrowings now this high the shareholders absorb the swing hard - about $14 per share. The base case trims current earnings modestly for peak margins and assumes 6% growth, close to what the business has achieved without acquisitions outside the present boom and far below its reported ten-year rate, discounted at 9.5%, giving about $56. The bull case assumes the data-centre buildout persists, CommScope integrates well and earnings compound at 10% for a decade, discounted at 8.5%, giving about $112. That the reasonable range spans roughly eightfold is itself the central finding: the filings do not tell us whether today's earning power is a new plateau or a peak, and that single question, magnified by the new borrowings, dominates the answer. We therefore anchor on the bear case rather than the base case and take a further 40% off it, setting the margin-of-safety price at $8.50. That is a demanding number and reflects roughly 55-60% confidence in the base case, not doubt about the quality of the business itself, which remains excellent. Fixed lease commitments of about $0.6 billion are modest and are already covered by the annual cash costs above. The underlying financial data is complete and internally consistent, earnings per share tie to the figures the company reported, and all per-share amounts are adjusted for the two-for-one share splits in 2021 and 2024.