ON Semiconductor (ON) — Q2 2026 Earnings Preview

1. Earnings Preview

Key Takeaway: Consensus is a manageable bar — revenue guidance midpoint of $1.585B sits essentially in line with the $1.589B Street estimate — but the real swing factor is whether AI data center revenue continues to dramatically outpace internal expectations as it did in Q1, and how the market digests the all-stock Synaptics acquisition announced June 25.

Heading into the Q2 2026 print, onsemi's setup is constructive but nuanced. The bar is not stretched: consensus revenue of ~$1.589B sits at the top of the $1.535B–$1.635B guidance range, and non-GAAP EPS consensus of ~$0.71 is near the midpoint of the $0.65–$0.77 guided range, leaving room for a modest beat without requiring heroics. Management's tone on the Q1 call was the most confident in several quarters — explicitly declaring the cycle has found its low, flagging that H2 is expected to outgrow H1, and upgrading the full-year AI data center outlook to doubling year-over-year — and nothing in the peer commentary since then contradicts that posture. Estimate revisions have been essentially flat since the Q1 print (revenue consensus moved from $1.588B to $1.589B; EPS from $0.714 to $0.715), suggesting the Street has largely anchored to guidance rather than building in incremental upside — a setup that historically favors a beat if AI data center momentum holds. The stock, however, has given back most of its post-Q1 gains, falling from a peak of ~$134 in early June to ~$82 by July 31 (down ~20% since earnings), driven almost entirely by multiple compression and the dilutive overhang of the all-stock Synaptics deal announced June 25 — not by deteriorating fundamentals. The key wildcard is the Synaptics acquisition: investors will scrutinize management's strategic rationale, deal financing mechanics (the $1.5B convertible note offering completed May 11), and any updated financial framework, with the risk that deal-related uncertainty continues to weigh on the multiple even if the operating quarter itself is clean.

2. KPIs & Consensus Expectations

Key Takeaway: Consensus is a low-to-moderate bar anchored tightly to guidance midpoints. AI data center revenue trajectory and gross margin expansion are the two biggest swing factors — both have been consistently surprising to the upside.

Table 1 — Q2 2026 Current Quarter Snapshot

Source: Visible Alpha Consensus and Actuals Data. Revenue, EPS, Gross Profit, Automotive Revenue, Industrial Revenue, Free Cash Flow consensus and actuals from Visible Alpha. Q2 2026 guidance from ON Q1 2026 earnings call (May 4, 2026). Non-GAAP Gross Margin consensus derived from Gross Profit / Revenue consensus. YoY change computed vs. Q2 2025 actuals.

Table 2 — Beat / Miss History (Last 8 Quarters) — Top 2 KPIs: Revenue & Non-GAAP EPS

Source: Visible Alpha Consensus and Actuals Data. Pattern: ON has beaten revenue consensus in 5 of the last 7 reported quarters and beaten EPS in 5 of 7, with the two misses concentrated in the cyclical trough (Q4 2024). The consistent positive surprise cadence — particularly on EPS — suggests the Street has not fully caught up to the company's operational leverage, supporting a modest beat bias heading into Q2 2026.

3. Guidance & Commentary Evolution

Key Takeaway: Guidance has been formally reiterated and not revised since the Q1 2026 earnings call. The only post-earnings development was the June 25 Synaptics acquisition announcement, which explicitly confirmed that Q2 guidance was unchanged. Tone remains constructive — management's H2 outgrowth commitment and AI data center doubling target are the key forward signals.

Source: ON Semiconductor Q1 2026 Earnings Call Transcript (May 4, 2026); ON 8-K / Synaptics Acquisition Press Release (June 25, 2026); Visible Alpha Consensus and Actuals Data.

4. Guidance vs. Estimate Revision Tracker

Key Takeaway: Estimates have been remarkably stable since the Q1 print — revenue consensus for Q2 moved only +$0.1M and EPS only +$0.001 — indicating the Street has anchored tightly to guidance rather than building in incremental upside. For FY 2026, estimates have drifted modestly higher (+$13M revenue, +$11M EPS), consistent with the AI data center upgrade. The gap between consensus and guidance midpoints is narrow, leaving the beat/miss outcome almost entirely dependent on execution.

Source: Visible Alpha Consensus and Actuals Data (revision history table, weekly frequency, May 8 – Aug 2, 2026). Post-earnings baseline taken as of May 11, 2026 (approximately 5 trading days after the May 4 Q1 2026 earnings release). Current consensus as of August 2, 2026.

Commentary: The near-zero estimate drift since the Q1 print is notable — it tells us the Street has essentially treated guidance as the ceiling rather than the floor. Given ON's consistent history of beating consensus (5 of last 7 quarters on revenue, 5 of 7 on EPS), and the fact that AI data center revenue has been dramatically outpacing internal expectations, the risk/reward on estimates appears skewed to the upside if the AI data center trajectory holds. The FY 2027 EPS estimate of $4.28 implies ~38% growth from FY 2026, which would require meaningful utilization recovery and operating leverage — a scenario management has explicitly endorsed but the Street has not yet aggressively priced in.

5. Stock Performance

Key Takeaway: ON's post-Q1 rally (+31% peak-to-trough from earnings to early June) was driven almost entirely by multiple expansion on AI data center enthusiasm, not estimate revisions. The subsequent -39% drawdown from the June peak to July 31 was driven by multiple compression — the Synaptics all-stock deal announcement on June 25 was the single largest catalyst, causing a ~24% single-day drop — with the stock now trading at 22x NTM P/E vs. a 30x peak, suggesting the deal overhang has reset the multiple to a more defensible level.

Indexed Performance Since Q1 2026 Earnings (May 4, 2026 = 100):

Source: Stock Price Data (Yahoo Finance). Sector ETF: SOXX (iShares Semiconductor ETF) — appropriate for ON's power/analog semiconductor sub-sector. Indexed to 100 at May 4, 2026 (Q1 2026 earnings date). ON's -20% since earnings vs. SOXX +9% and SPY +4% represents ~29 percentage points of underperformance, almost entirely attributable to the Synaptics deal announcement on June 25.

Valuation Context: ON currently trades at 22.1x NTM P/E and 13.1x NTM EV/EBITDA (as of July 31, 2026). The 3-month EV/EBITDA multiple has compressed from ~18.3x to 13.1x (-28.6%), almost entirely driven by the Synaptics deal overhang rather than estimate cuts. The 12-month P/E has expanded modestly (+5.6%), reflecting the underlying earnings recovery story. At current levels, the stock appears to have de-rated to a more defensible multiple, though deal uncertainty may cap near-term re-rating.

6. Peer Commentaries — Current-Quarter Read-Through

Key Takeaway: All three peers that reported Q2 2026 results in the last 60 days (TXN, STM, NXPI) provided forward guidance for their Q3 2026 quarter — the same calendar period as ON's Q2 2026 — and the read-through is uniformly positive across automotive, industrial, AI data center, and SiC. Demand is accelerating broadly, lead times are extending, book-to-bill ratios are above 1.0 across the group, and pricing power is emerging. The only nuance is that STM's Q3 revenue guidance missed Street expectations, suggesting elevated expectations can still punish even when fundamentals are strong — a risk ON faces given its own stock's recent run.

Methodology Note: Only forward-looking commentary from each peer's Q2 2026 earnings call (July 2026) addressing their Q3 2026 outlook is included below. Retrospective Q2 2026 results commentary is excluded. All three peers (TXN, STM, NXPI) report on a calendar quarter basis, so their Q3 2026 guidance covers the same July–September 2026 period that ON's Q2 2026 covers (April–June 2026). The read-through is therefore directly applicable to ON's current reporting quarter.

6.1 Texas Instruments (TXN) — Q2 2026 Earnings Call, July 22, 2026

Q3 2026 Guidance: Revenue $5.65B–$6.15B (midpoint $5.90B, +23% YoY); EPS $2.23–$2.57 (midpoint $2.40, vs. Street $2.17). Gross margin fall-through of 70–85% ex-depreciation. Tax rate ~13%.

Source: Texas Instruments Q2 2026 Earnings Call Transcript (July 22, 2026); TXN Q2 2026 Earnings Release (8-K, July 22, 2026).

6.2 STMicroelectronics (STM) — Q2 2026 Earnings Call, July 23, 2026

Q3 2026 Guidance: Revenue $3.7B ±350 bps (+6.2% QoQ, +16.2% YoY); Gross margin ~37% ±200 bps (incl. ~70 bps unused capacity charges). Non-GAAP OpEx ~$980M. Note: Q3 guidance missed Street expectations of ~$3.78B, causing STM shares to fall ~15% on the day.

Source: STMicroelectronics Q2 2026 Earnings Call Transcript (July 23, 2026); STM Q2 2026 Earnings Release (6-K, July 23, 2026).

6.3 NXP Semiconductors (NXPI) — Q2 2026 Earnings Call, July 28, 2026

Q3 2026 Guidance: Revenue $3.75B (+21% YoY adj., +7% QoQ); Automotive +high-teens% YoY; Industrial & IoT +high-30s% YoY; Comms Infrastructure (incl. data center) +~50% YoY; Non-GAAP Gross Margin 58.5% ±50 bps; Non-GAAP EPS $4.11 (vs. Street $4.02). Reported Q2 EPS $3.61 (vs. Street $3.54) and revenue $3.49B (vs. Street $3.46B) — modest beat but stock sold off, reflecting high bar.

Source: NXP Semiconductors Q2 2026 Earnings Call Transcript (July 28, 2026); NXPI Q2 2026 Earnings Release (8-K, July 28, 2026).

Peer Read-Through Summary

7. Material News & Developments

Key Takeaway: The Synaptics all-stock acquisition (June 25) is the single most material post-earnings development — it reset the stock's multiple, introduced dilution overhang, and shifted the strategic narrative from pure-play power/sensing to a broader "intelligent systems" platform. The $1.5B convertible note offering (May 11) and the Q2 earnings date announcement (July 16) are secondary but relevant context.

• June 25, 2026 — Synaptics Acquisition Announced (All-Stock, ~$7B EV). onsemi announced a definitive agreement to acquire Synaptics Incorporated in an all-stock transaction at a fixed exchange ratio of 1.350 ON shares per SYNA share, representing a ~19% premium to the 10-day VWAP. Synaptics shareholders will own ~12% of the combined company. The deal is expected to close in mid-2027, subject to regulatory and Synaptics shareholder approvals. Management guided the transaction to be accretive to non-GAAP EPS within 18 months of closing, with $200M in annual synergies and gross margins consistent with ON's long-term model. The acquisition is intended to expand ON's TAM by $30B to $243B by 2030 by adding Synaptics' Edge AI compute (Astra platform), HMI, and wireless connectivity capabilities. Implication: The deal is the dominant overhang on the stock — the all-stock structure is dilutive (~12% share count increase), the strategic pivot to "intelligent systems" raises questions about focus, and the mid-2027 close timeline means uncertainty persists for ~12 months. The Q2 earnings call will be the first opportunity for management to address investor concerns in detail. ON explicitly reiterated Q2 guidance was unchanged in the deal announcement, which is a positive signal.
• May 11, 2026 — $1.5B Convertible Senior Notes Offering Completed (0%, due 2031). ON completed a $1.5B offering of 0% convertible notes (including full exercise of the $200M greenshoe), with net proceeds of ~$1.47B. Approximately $332M was used to repurchase ~3.1M shares concurrently. Conversion price ~$161.30/share; warrant strike ~$211.54/share (100% premium to the May 6 close of $105.77). Convertible note hedges were purchased to reduce dilution. Implication: The offering added $1.5B of debt but is non-dilutive below $161.30/share (current price ~$82). The concurrent buyback was accretive to EPS. The offering was likely pre-positioned to fund the Synaptics deal or general corporate purposes, and the 0% coupon minimizes interest expense impact.
• July 16, 2026 — Q2 2026 Earnings Date Announced. onsemi confirmed Q2 2026 results will be reported on August 3, 2026 after the U.S. market close, with a conference call at 5:00 PM ET. Implication: Routine announcement; confirms the earnings date used in this preview.
• May 18, 2026 — Annual Meeting: Shareholders Approve Simple Majority Voting, Elect Directors. onsemi shareholders approved a governance change to simple majority voting and elected the board of directors at the annual meeting. Implication: Governance improvement; no material financial impact.
• July 29, 2026 — Analog Devices (ADI) Discloses Cyberattack (8-K). ADI disclosed a cyberattack with files exfiltrated and is assessing a second incident. Implication: Sector-level risk awareness; no direct ON impact identified, but highlights cybersecurity as an emerging operational risk for semiconductor companies.
• July 30–31, 2026 — NXPI Reported Exploring Ambarella Acquisition (FT Report). NXP Semiconductors is reportedly in talks to acquire Ambarella (AMBA), though a deal is not yet certain. Implication: Sector M&A activity is accelerating, consistent with the broader consolidation theme. No direct ON impact, but reinforces that strategic repositioning via M&A is a sector-wide trend.
• Ongoing — Non-Core Business Exits Tracking to Plan. ON exited ~$50M of non-core revenue in Q1 2026 and guided to exit an incremental $30M–$40M in Q2. The full program (~$300M annualized) is on track for completion by end of 2026. Implication: Portfolio rationalization is margin-accretive and reduces revenue noise. Completion by year-end removes a recurring headwind to reported revenue growth.
• Ongoing — Analyst Day Scheduled for September 16, 2026. onsemi has scheduled a Financial Analyst Day for September 16, 2026, where management is expected to provide long-term financial targets and a multi-year growth framework. Implication: The Analyst Day is a potential re-rating catalyst if management provides a credible long-term framework that incorporates the Synaptics acquisition and the AI data center opportunity. Investors will be watching for updated margin targets and capital allocation priorities.

8. Insider Transaction Activity

Key Takeaway: No open-market insider purchases or sales (Form 4 codes P/S) were identified for ON Semiconductor in the period from May 4, 2026 (Q1 earnings) through August 2, 2026, based on SEC Form 4 filings data. The absence of insider buying during the stock's significant post-Synaptics correction (from ~$134 to ~$82) is notable — it does not signal alarm, but the lack of opportunistic buying at depressed levels is worth monitoring.

Source: SEC Form 4 Filings Database. Query covered open-market transactions (codes P and S) for ON Semiconductor from May 4, 2026 through August 2, 2026. No qualifying transactions were returned. Note: The company repurchased ~3.1M shares ($332M) concurrently with the May 11 convertible note offering — this is a corporate buyback, not an insider transaction, and is not reflected in Form 4 filings.

9. Key Risks & Questions for the Call

Key Takeaway: The Synaptics deal is the dominant risk and will consume significant airtime on the call. Beyond M&A, the key operational questions center on whether AI data center momentum is sustainable, how pricing actions are flowing through margins, and whether the H2 outgrowth commitment is tracking.

Key Risks

• Synaptics Deal Execution Risk. The all-stock acquisition introduces ~12% dilution, regulatory uncertainty (mid-2027 close), and strategic focus risk. If investors remain skeptical of the strategic rationale or the synergy timeline, the deal overhang could persist through the Analyst Day (September 16). A $320M regulatory termination fee payable by ON if the deal fails on antitrust grounds is a tail risk.
• AI Data Center Concentration Risk. ON's AI data center revenue has been growing dramatically (>30% QoQ, doubling YoY), but this growth is concentrated in a small number of hyperscaler relationships. Any slowdown in hyperscaler capex or a shift in power architecture preferences could disproportionately impact ON's fastest-growing segment.
• Gross Margin Trajectory. Consensus expects ~39.1% gross margin in Q2 vs. 38.5% in Q1. The margin expansion path depends on utilization improvement (guided flat to up slightly in Q2) and pricing actions flowing through in H2. If utilization disappoints or input cost inflation accelerates, the margin expansion story could stall.
• Non-Core Revenue Exit Headwind. ON is exiting $30M–$40M of non-core revenue in Q2, which creates a ~2–3% headwind to reported revenue growth. Investors need to track core revenue growth (ex-exits) to assess underlying momentum, and any slippage in the exit timeline could create confusion.
• Automotive Market Volatility. While automotive posted its first YoY growth in Q1 after seven consecutive quarters of decline, the recovery is still nascent. Any deterioration in EV demand, SAAR weakness, or OEM inventory rebuild could reverse the trend. China automotive (a key growth driver for ON) remains exposed to geopolitical and trade policy risks.
• Convertible Note Dilution Overhang. The $1.5B convertible notes (conversion price ~$161.30) are currently deeply out of the money at ~$82/share, but if the stock recovers, the potential for up to 14.2M additional shares (partially offset by hedges) could weigh on sentiment. The warrants (strike ~$211.54) add a further 18.6M shares of potential dilution at higher prices.
• Semiconductor Sector Expectations Bar. As demonstrated by TXN (-3.4% after a strong beat), STM (-15% despite raised data center outlook), and NXPI (sold off despite beat and above-consensus guidance), the market is demanding more than modest beats from semiconductor stocks. ON's -20% correction since Q1 earnings may have reset expectations, but the bar for a positive stock reaction remains high.

Key Questions for Management on the Q2 2026 Earnings Call

1. Synaptics Strategic Rationale & Integration: How does Synaptics' Edge AI compute (Astra platform) and HMI portfolio specifically complement ON's power and sensing capabilities? What is the revenue synergy framework beyond the $200M cost synergy target? How will management ensure focus on the core power/sensing business during the 12+ month integration period?
2. AI Data Center Revenue Trajectory: Q1 AI data center revenue grew >2x the expected sequential rate. Is Q2 tracking similarly above internal expectations? What is the specific revenue run rate, and how does the 800V rack transition timeline affect the growth trajectory into H2 2026 and 2027?
3. Gross Margin Expansion Path: Utilization was guided flat to up slightly in Q2. What is the actual Q2 utilization rate, and what is the path to the low-90s% full utilization level? When do the April 1 pricing actions begin to materially flow through the P&L, and what is the expected gross margin exit rate for Q4 2026?
4. H2 2026 Outgrowth Confidence: Management committed to H2 outgrowing H1. With consensus implying H2 revenue of ~$3.39B vs. H1 ~$3.10B (+9.4%), what gives management confidence in this trajectory? Is the outgrowth driven by automotive recovery, AI data center ramp, or industrial restocking?
5. Non-Core Revenue Exit Completion: Are the Q2 non-core exits ($30M–$40M) on track? What is the remaining non-core revenue base, and is the end-of-2026 completion timeline still intact? What does core revenue growth look like ex-exits?
6. Silicon Carbide Market Share & Competition: ON held ~55% SiC share at the 2026 Beijing Auto Show. How is this share tracking in Q2, and what is the competitive dynamic as Chinese SiC substrate suppliers attempt to commoditize the wafer supply chain? Is ON's device-level differentiation holding?
7. Capital Allocation Post-Synaptics: Management committed to maintaining the existing capital return policy during the pendency period. Given the $1.5B convertible note offering and the all-stock deal structure, what is the updated share repurchase capacity and priority? Is the 100% free cash flow return target still operative?
8. Analyst Day Preview: What can investors expect from the September 16 Analyst Day? Will management provide updated long-term financial targets that incorporate the Synaptics acquisition, and will there be a new multi-year revenue and margin framework?

Appendix: Valuation & Estimate Summary

Source: Stock Price Data (Yahoo Finance); Visible Alpha Consensus and Actuals Data (NTM multiples as of July 31, 2026). Historical stock prices: 3M ago = ~May 1, 2026 (pre-Q1 earnings); 6M ago = ~Feb 2026; 12M ago = ~Aug 2025.

FY 2026 & FY 2027 Consensus Estimates Summary

Source: Visible Alpha Consensus and Actuals Data (as of August 2, 2026).