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Investment Memorandum · Preview

For informational purposes only. Not investment advice.

ON Semiconductor (onsemi)

ON

NEUTRAL

June 1, 2026

Research Conclusion

At spot $120.60, onsemi is a HOLD / TRIM bias with a probability-weighted fair value of ~$96 and a defensible valuation range of $80–$115. The stock has rallied ~120% from the ~$55 prereq reference, fully discounting bull-case SiC execution + sector-multiple expansion. New positions should wait for $85–$95 re-entry zone; aggressive accumulation only <$75. Bull case ($145–165) requires SiC FY30E >$2.5B + 50%+ terminal GM + 30x P/E retention — possible but not the base rate. Bear case ($55–65, -50%) is gated by EV demand slowdown or SiC commoditization. Sell-side average PT $103.97 sits 14% below spot, corroborating the 'fully priced' read.

Company Overview & Moat Assessment

onsemi (NASDAQ: ON) is the #2 global silicon-carbide (SiC) supplier and a vertically integrated power-semiconductor IDM-Lite, with ~50% of revenue from automotive (EV traction inverters, OBCs, ADAS imaging), ~27% industrial, and ~23% other end-markets. Under CEO Hassane El-Khoury (2021–present), the company shed ~$1B of commodity revenue, acquired GlobalFoundries' East Fishkill fab for 300mm capacity, and lifted gross margin from 35% to a structural 45-48% floor — one of the largest margin transformations in semiconductor history. Headquartered in Phoenix, AZ; ~33,000 employees; FY2024 revenue ~$7.1B; FY2025 troughed below $6B before recovering toward consensus FY26E $6.3B.

▲ Bull Case

  • ◆SiC scarcity premium re-rates structurally — Wolfspeed exit + STM SiC headwinds leave onsemi as the only credible vertically integrated 200mm SiC supplier at scale, supporting $2.5-3.0B SiC revenue by FY30E with 50%+ segment GM.
  • ◆Auto OEM platform wins compound — Existing LTAs with BMW, Hyundai/Kia, VW locked through vehicle lifetimes; pipeline includes Toyota, Ford-Pro, and second-wave Chinese OEMs. Each platform win adds 5-7 years of locked-in revenue.
  • ◆IDM-Lite operating leverage delivers 30%+ FCF margin at $9B+ revenue — capex normalization + 200mm SiC wafer economics + premium auto/industrial mix push FCF margin from ~12% FY25 trough to 20%+ structural by FY28-29E.

▼ Bear Case

  • ◆SiC commoditization arrives faster than priced — ASP deflation accelerates to 20-25%/yr as Infineon, Chinese players, and Bosch in-source scale capacity. SiC GM compresses from 45%+ to 35%; revenue growth fails to offset price decline.
  • ◆EV demand stalls 2026-2028 — China subsidy expiration + European EV mandate dilution + US tariff/policy whipsaw cap auto-segment growth at low-single-digits. Industrial recovery delayed by capex caution. Revenue stays flat $6.5-7.5B for 3+ years.
  • ◆Sector multiple compression — Reversion of TXN/STM/IFX from 33-40x P/E back to historical 20-25x band drags ON from 30x to 18-22x; even with base-case EPS, stock falls to $75-90.
Primary Debate on Wall Street

“Sell-side consensus PT $103.97 vs spot $120.60 signals the Street believes full value has passed. The debate is bifurcated: 'Stay long' camp is bullish on sector multiple holding + SiC scarcity narrative, willing to pay 30x for compound-growth-at-quality comparable to TXN/STM/IFX. 'Trim/exit' camp rejects current price via reverse-DCF; argues 30x P/E on ON (cyclical IDM with 16% ROIC) is incompatible with TXN/ADI multiples (33%+ ROIC, fabless quality), expecting mean reversion. Central swing variable: Q3 FY26 SiC revenue print (late Oct 2026). $700M+ confirms re-rating; <$550M validates bear case.”

Top Catalysts
  • ◆Q3 FY26 SiC revenue print (Oct 2026) — Single largest variance-collapsing event. >$700M = bull confirmed; <$550M = bear thesis activated.
  • ◆2026 Investor Day (likely late summer) — Management's long-term SiC capacity + ASP framework; will reset 2027-2030E sell-side models.
  • ◆Major OEM platform wins — Toyota EV ramp, Ford-Pro Gen-3 SiC platform, GM Ultium-2.0 sourcing decision. Any one = +5-15% rerate.
  • ◆Wolfspeed customer transitions — Tesla re-sourcing; secondary OEMs that lost WOLF supply.
  • ◆East Fishkill 300mm production milestones — Each quarter of progress reduces capex tail and supports FCF narrative.
  • ◆Buyback acceleration — Opportunistic share repurchase at <$100 would signal management confidence in intrinsic value.
Top Risks
  • ◆SiC ASP collapse — 20-25%/yr ASP decline vs. base 12% compresses terminal GM 400-600bps; PWFV drops to ~$76.
  • ◆China entity-list / export restriction — ~10% of revenue at direct risk; PWFV drops to ~$82.
  • ◆Major auto OEM cancellation — Loss of 30% volume from BMW or VW group reduces FY27-29E revenue by $300-450M/yr.
  • ◆Cyclical bust + balance sheet stress — Combined recession + EV shock + ASP collapse → FCF negative for 12-18 months; possible $1B convertible dilution.
  • ◆Sector multiple reversion — TXN/STM/IFX compress from 33-40x P/E to historical 20-25x → ON drags to $75-90 even on base-case EPS.
  • ◆Pillar 2 BEPS tax impact — Status-quo 17% effective tax rate could rise to 18-22%; each 1pp = ~$0.10 EPS / ~$3 fair value.

Full Memo Continues

5 more sections, locked

  • ●
    Valuation Range & DCF
    Base/bull/bear fair-value range, WACC, terminal growth, sensitivity to revenue + margin assumptions.
  • ●
    Risk/Reward Assessment
    Position-sizing framework with explicit upside/downside skew and entry conditions.
  • ●
    Management & Capital Allocation
    Multi-year capital-allocation track record, incentive alignment, and management readout.
  • ●
    Monitoring Framework
    What to watch each quarter — leading indicators and inflection signals tracked by the analyst.
  • ●
    Unresolved Questions
    Open analyst questions and follow-up research items — the depth signal.

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Margin of Insight

For informational purposes only. Not investment advice.

ON Semiconductor (onsemi) (ON) — Investment Memo | Margin of Insight