ON Semiconductor: Nasdaq Exit Meets AI TailwindsQ1

ON Semiconductor: Index Exit Collides with Sector Momentum

ON Semiconductor (ON) entered the new year with a mixed set of forces shaping its share trajectory. The company was removed from the Nasdaq‑100 during the index reconstitution in December 2025, a concrete event that alters passive demand dynamics. At the same time, strong AI-driven spending elsewhere in the semiconductor ecosystem — highlighted by outsized results from Broadcom and TSMC — creates favorable demand tailwinds for many chip suppliers, including ON’s power-management and automotive sensor franchises.

Key developments that matter to ON

Nasdaq‑100 removal: immediate and measurable impact

ON’s formal exit from the Nasdaq‑100 (effective December 22, 2025) is not speculative: ETFs and index-tracking funds that benchmark to the Nasdaq‑100 will rebalance holdings, typically selling excluded names and buying additions. That automatic reweighting reduces a predictable source of passive buying pressure. For stocks with modest daily volume, index exclusion can widen bid‑ask spreads and increase short‑term volatility as passive flows unwind.

Think of index inclusion like a marquee placement in a busy mall: removal doesn’t change the store’s inventory, but it does reduce the steady foot traffic that comes from being on the main directory. For investors, the practical consequence is an important, observable reallocation of capital away from ON that can temporarily suppress price performance regardless of fundamentals.

Sector AI wins: evidence from Broadcom and TSMC

Concrete strength elsewhere in the semiconductor sector provides countervailing support for ON’s demand outlook. Broadcom’s business, heavily tied to AI infrastructure, posted pronounced gains last year — with a reported surge driven in part by large hyperscaler commitments (including multi‑billion‑dollar orders). TSMC also showed robust expansion, reporting roughly 32% year‑over‑year revenue growth in 2025 and advancing volume production on cutting node technology.

Those results matter for ON because the company supplies critical analog, power and sensing components used across servers, edge devices, automotive platforms and industrial equipment. Sustained investment in AI compute and advanced packaging often ripples through supply chains to benefit specialists in power management, thermal control and high‑reliability sensors.

What this means for investors

Near term: structural headwind, possible buying opportunities

The index exclusion is a mechanical headwind that can weigh on ON’s stock in the short term. Passive outflows are predictable and may depress the share price independent of business performance. That dislocation can create entry points for investors focused on fundamentals rather than headline flows — provided company metrics (revenues, margins, cash flow) remain healthy.

Medium to long term: fundamentals and sector trends matter most

Over a longer horizon, ON’s exposure to automotive electrification, industrial automation, and components for AI‑enabled systems should determine valuation. If the broader AI build‑out and semiconductor demand growth continue — as signaled by major foundry and infrastructure suppliers — ON stands to benefit through increased content per system and steady replacement cycles in autos and industrial equipment.

Practical signals to monitor

• Quarterly revenue and margin trends, particularly in automotive and industrial segments.
• Guidance for content per vehicle / unit in EV and ADAS applications.
• Share buyback activity or other capital allocation moves that can offset passive outflows.
• Index reconstitution updates and ETF flow reports that quantify the passive selling pressure.

Conclusion

The removal of ON Semiconductor from the Nasdaq‑100 is a verifiable event with short‑term implications for passive flows and share liquidity. At the same time, demonstrable AI investment and strong results at major suppliers such as Broadcom and TSMC underpin demand trends that could benefit ON’s core product lines. For investors, the situation combines a mechanical near‑term constraint with longer‑term fundamental upside tied to power management, sensing and automotive electronics adoption.