onsemi (ON) Q2 2026 earnings review
Operating Leverage Explodes as AI Demand Surges
onsemi delivered a powerful second quarter, proving its multi-year structural transformation ('FabRite') is yielding massive operating leverage. While revenue grew 9% YoY, non-GAAP EPS surged nearly 40% ($0.74 vs $0.53). The Power Solutions Group (PSG) continues to dominate, up 19% YoY, driven by relentless AI data center demand. Free cash flow margin expanded dramatically from 7% a year ago to 27%. A planned acquisition of Synaptics marks a strategic pivot into connected compute. Q3 guidance is highly bullish, projecting significant gross margin acceleration to 41% at the midpoint.
🐂 Bull Case
Gross margin expanded sequentially to 39.3%, and Q3 guidance calls for a massive step-up to 40.0-42.0%. The 'FabRite' utilization drag is reversing into a powerful tailwind.
Management expects AI data center revenue to more than double in 2026. The expanded role in the NVIDIA MGX ecosystem and new wins with Great Wall validate their 'PowerTree' strategy.
🐻 Bear Case
The Advanced Mobility Group (AMG) saw revenue contract 2% YoY. If EV and legacy auto markets don't rebound, onsemi becomes disproportionately reliant on AI infrastructure for growth.
The planned Synaptics acquisition introduces integration risks and a pivot outside core power/sensing into connected compute, which could dilute management focus or alter the 100% FCF shareholder return policy.
⚖️ Verdict: 🟢
Bullish. Management promised margin expansion once utilization recovered, and they are delivering in a massive way. EPS growing 4x faster than revenue confirms the structural profitability upgrades.
Key Themes
Power Solutions Group (PSG) Accelerating
PSG is the star of the portfolio, surging 13% sequentially and 19% YoY to $829M. This segment houses the high-voltage silicon and EliteSiC platforms driving AI data center infrastructure. By winning sockets across the entire rack (from power supplies to the XPU board), onsemi is successfully monetizing the AI super-cycle.
Advanced Mobility Group (AMG) Weakness
While AI thrives, AMG remains a laggard. Revenue dropped 2% YoY to $545.7M, marking a continued deceleration. This exposes vulnerability to uneven EV ramps globally and softness in European/American automotive end-markets. Until AMG returns to sustained growth, total company top-line potential is capped.
Strategic Pivot via Synaptics Acquisition
The planned acquisition of Synaptics expands onsemi's capabilities into connected compute. Management argues this will complement their power and sensing leadership with accretive gross margins. However, investors will need to monitor how this impacts the firm's capital allocation, given their recent heavy emphasis on aggressive buybacks.
GaNEXUS Launch Broadens Portfolio
onsemi officially launched the GaNEXUS portfolio (40V to 650V gallium nitride devices). This bridges a crucial gap in their wide-bandgap offerings, allowing them to capture high-density power supply sockets in AI data centers, robotics, and industrial infrastructure where silicon or SiC may be sub-optimal.
Other KPIs
Accelerating. Free cash flow quadrupled YoY, jumping from $106.1M in 25Q2 to $425.4M in 26Q2. The FCF margin expanded from ~7% to 27%. This cash generation fully supported $332M in share repurchases during the quarter, bringing YTD returns to 105% of FCF.
Accelerating. Non-GAAP operating margin expanded 170 basis points sequentially (from 19.1% in Q1) and 350 basis points YoY (from 17.3%). Management's relentless focus on disciplined cost management resulted in operating expenses growing at a fraction of the rate of revenue.
Guidance
Accelerating. At the midpoint ($1,700M), this implies ~9.6% YoY growth and strong 6% sequential growth. This confirms management's prior commentary that the second half of 2026 would significantly outpace the first half.
Accelerating dramatically. The 41.0% midpoint represents a massive 170 bps sequential jump from Q2's 39.3%. This indicates utilization rates are quickly recovering and the structural benefits of the 'FabRite' footprint optimization are dropping straight to the bottom line.
Accelerating. The $0.87 midpoint implies an 18% sequential increase over Q2's $0.74, further emphasizing the extreme operating leverage inherent in the business model as revenue scales.
Key Questions
Synaptics Acquisition Impact
How will the Synaptics acquisition impact your commitment to returning 100% of Free Cash Flow to shareholders? Will buybacks be paused or reduced during integration?
AMG Segment Recovery
The AMG segment remains in contraction YoY. Is this entirely due to macro-level EV lumpiness, or are there specific regional or platform headwinds extending the bottom?
Gross Margin Peak Potential
With Q3 gross margin guided to 41%, how much of the original 700bps underutilization drag remains to be recovered, and does this change your timeline to hit the long-term 53% target?