AI Data-Center Surge Provides Tailwind, but Core Weakness Persists

What happened

Zacks reports that ON Semiconductor's AI data-center revenues are surging, driving margin gains and stronger 2026 earnings expectations. The DeepValue master report acknowledges this AI tailwind but maintains a WAIT rating given the still-depressed automotive and industrial end-markets. Non-GAAP gross margins remain around 38%, far from the 45-53% targets, and auto revenue is only beginning to trough. The $6B buyback and strong FCF provide a floor, but valuation at ~77x trailing P/E leaves no room for execution missteps. Until gross margins sustainably exceed 40% and auto revenue shows sustained growth, the risk/reward is unattractive.

Implication

The AI data-center surge reinforces one leg of the bull case, but ON's core auto/industrial business remains in a cyclical trough with gross margins stuck sub-40%. The master report's base case ($65) assumes moderate recovery by 2027, while the current price (~$60) already prices in substantial improvement. Investors should wait for Q4 2025 results and 2026 guidance to confirm whether revenue stabilization and margin expansion are on track before adding exposure. The attractive entry remains near $50, where the bear case is better reflected.

Thesis delta

The news does not alter the core thesis: AI data-center growth is incremental but not transformative for the near-term financial profile. The main drivers – auto/industrial recovery, gross margin expansion, and sustainable FCF – remain unproven. The fundamental wait stance is reinforced, not changed.