ON Semiconductor (NASDAQ: ON) posted a strong Q2. Non-GAAP diluted EPS of $0.74 beat the $0.71 consensus, while revenue of $1.60B topped the $1.59B estimate. Revenue grew 9% year-over-year, but EPS surged 40%. That spread signals operating leverage is finally materialising after a period of heavy restructuring.
The headline story is the Power Solutions Group (PSG). It grew 19% YoY to $829M on AI data center demand. That segment now accounts for over half of total revenue, up from 48% a year ago. The Intelligent Sensing Group (ISG) also contributed, rising 7% YoY to $228.8M. The Analog and Mixed-Signal Group (AMG) slipped 2%. A reminder that the recovery is uneven across end markets.
Gross margin expanded 170 basis points on a non-GAAP basis to 39.3%. The drivers: a mix shift toward higher-value power solutions and disciplined cost management. Operating margin hit 20.8%, up from 17.3% a year ago. The company is running its business model harder. Non-GAAP operating expenses fell sequentially to $296.8M from $293.7M, even as revenue grew 6% quarter-over-quarter.
Free cash flow quadrupled to $425.4M, a 27% FCF margin. That cash is being returned aggressively to shareholders. Year-to-date share repurchases of $690.5M represent roughly 105% of free cash flow. That pace raises a question about capital allocation priorities given the company also announced a planned acquisition of Synaptics. The buyback consumes nearly all operating cash flow after capex, leaving little room for organic investment or debt reduction from free cash flow alone. Management is betting the AI cycle sustains long enough to fund both.
The Synaptics acquisition is the strategic wildcard. ON Semiconductor says the deal expands its connected compute capabilities at accretive gross margins. The company did not disclose deal terms, so the multiple paid and financing structure remain unknown. What is clear is that ON is using its balance sheet — cash and equivalents jumped to $3.5B from $2.0B at the end of Q1, partly from a $1.47B debt issuance — to fund both M&A and buybacks simultaneously. That is a high-conviction move. It also increases leverage at a time when the semiconductor cycle remains unpredictable outside of AI.
Q3 guidance came in above Q2 actuals: revenue of $1.65B–$1.75B, non-GAAP gross margin of 40.0%–42.0%, and non-GAAP EPS of $0.81–$0.93. The midpoint implies sequential revenue growth of about 6% and EPS growth of 18%. Management expects AI data center revenue to more than double in 2026, which is the core growth thesis. But the guidance range for gross margin is wide — 200 basis points — suggesting some uncertainty about mix and cost trends in the back half of the year.
The margin compression that hit the industry in 2024–2025 looks to be reversing for ON Semiconductor. The structural question is whether the 39–42% non-GAAP gross margin range is sustainable once AI demand normalises. For now, the company is executing well in a favourable pocket of the market. The risk is that the capital allocation strategy — heavy buybacks plus debt-funded M&A — leaves less flexibility if the cycle turns.