Littelfuse (LFUS) — 2025Q4 FY2025 Earnings Call Analysis

Bookings Up 20%, Two Segments Organic Negative

They wrote down $301 million of power semiconductors and called it strategic focus.

Thesis: The Q4 beat is real on cash and Electronics, but the Q1 guide is 5 points Basler and price-cost neutrality is a full-year goal, meaning Q1 carries unmitigated metal inflation on a 25% flow-through assumption. The one hard number supporting ownership is bookings up 20% two consecutive quarters with book-to-bill above one, against a $301M write-down that proves the power semi model already failed once. Content per data center system can 2x, but data center is only double-digit percent of revenue today.

Verdict: HOLD — Conviction: MEDIUM

Catalyst: Investor Day on May 14 where management gives the power semiconductor margin roadmap and long-term financial goals, plus a Q1 print of $625-645M with organic holding above 5 points ex-Basler.

Key Risk: Q1 margins compress as copper, ruthenium, silver and gold costs hit before pricing catches up. CFO admitted price-cost neutrality is a full-year comment, not a Q1 assumption, while guide assumes 25% flow-through.

The Tell: Luke Junk pressed whether price-cost neutrality applies to Q1. Khandelwal conceded: 'I think it's a full-year comment... that's a full-year comment, not a Q1 comment.' The Q1 guide carries unmitigated metal inflation against a 25% flow-through assumption.

Detected Patterns

Friction Level: MODERATE_FRICTION — Both sides agree on the headline numbers. Disagreement is over whether the $301M IXYS/Dortmund impairment plus two organic-negative segments invalidates the growth story or is contained noise ahead of a real Q1.

Bookings Up 20%, Two Segments Organic Negative | Silicon Signal