ON Semiconductor (ON) Stock Soars Nearly 90% YTD on AI Infrastructure Boom

TLDR

• Q1 2026 results exceeded expectations with EPS of $0.64 and revenue of $1.51B, reflecting ~5% annual growth
• Sequential AI data center revenue surged 30%; full-year 2026 projections call for a doubling of this segment
• Shares have climbed approximately 90% in 2025, currently trading around $103 near the 52-week peak of $105.90
• Industrial and automotive segments posted their first positive growth in seven quarters, rising 4% and 5% respectively
• Wall Street analysts maintain a cautious stance with a Hold consensus and mean price target of $87.27, suggesting potential downside

ON Semiconductor delivered first-quarter 2026 financial results on May 4 that exceeded Street forecasts across key metrics. The company reported $1.51 billion in revenue, marking a 4.7% increase from the prior year, while adjusted EPS of $0.64 surpassed analyst expectations of $0.61.

ON Semiconductor Corporation, ON

Shares opened Friday trading at $103.19, hovering near the 52-week high of $105.90 following a remarkable climb of nearly 90% since the start of 2025. Such explosive momentum naturally invites scrutiny about whether the stock has gotten ahead of fundamentals.

The headline achievement from the quarter was the AI data center business, which posted 30% sequential revenue growth. Company leadership forecasts this division will expand to twice its current size throughout 2026. ON’s product portfolio includes power modules and point-of-load devices being integrated into liquid-cooled server infrastructure designed for the latest Nvidia GPU platforms.

Executives project that revenue potential per server rack will expand dramatically from $15,000 currently to approximately $115,000 by decade’s end. This growth trajectory represents a substantial long-term opportunity.

AI Infrastructure Powers Growth Narrative

The Power Solutions Group division delivered 14% year-over-year expansion in Q1, primarily driven by artificial intelligence infrastructure buildouts. ON’s silicon carbide technology also demonstrated momentum, with CEO Hassane El-Khoury highlighting that the company’s SiC products were incorporated into approximately 55% of electric vehicle models unveiled at Auto China this May.

The company’s “Fab Right” manufacturing initiative — which consolidates operations into more efficient 300mm production facilities — is approaching completion. Leadership indicates this transition is lowering capital spending requirements while boosting free cash flow margins, which reached a record 24% in 2025. ON is now on pace to generate over $2 billion in annual free cash flow.

The semiconductor maker is executing a substantial $6 billion share repurchase program, allocating 100% of free cash flow toward buybacks. With net debt-to-EBITDA sitting below 1x, the financial foundation appears robust.

Legacy Business Segments and Valuation Concerns

Not all divisions are experiencing equal momentum. The Analog & Mixed-Signal business declined 5% year-over-year during Q1, representing roughly 36% of total revenue. Industrial and automotive end markets only recently turned positive after seven straight quarters of contraction — leadership characterizes this as stabilization rather than robust recovery.

ON currently trades at approximately 35x forward non-GAAP earnings, modestly below Texas Instruments’ 36.3x multiple. However, this represents a significant premium to ON’s five-year historical average forward P/E of 18x.

GAAP financials present additional challenges. Substantial restructuring expenses totaling $329.3 million resulted in a GAAP net loss of $33.4 million, or negative $0.08 per diluted share, for Q1. GAAP operating margin registered only 3.5%.

Institutional investors control 97.7% of outstanding shares, while insider ownership stands at just 0.35%. CFO Trent Thad divested 60,000 units in February at $71.22 per share, and other company insiders have collectively sold $11.3 million in stock over the past quarter.

Wall Street remains divided — 14 Buy ratings, 15 Hold ratings, and one Sell rating, producing a consensus price target of $87.27, approximately 15% below current trading levels.

For Q2 2026, management issued EPS guidance ranging from $0.65 to $0.77. Full-year consensus EPS estimates stand at $3.09.

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