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ON Semiconductor's stock drops 9% as CEO explains $30B market gap during investor day.

Market News
17 Sep 2026
24/7 Wall Street
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Bearish
ON Semiconductor's stock drops 9% as CEO explains $30B market gap during investor day.

ON Semiconductor's stock fell 9% during its investor day after CEO Hassane El-Khoury clarified a $30 billion difference in the total addressable market compared to prior estimates. The CEO explained the smaller $213 billion market figure excludes the Synaptics acquisition, which is pending regulatory approval and expected to close in mid-2027. The company also anchored AI data center growth assumptions to consensus estimates, which investors found less compelling without clear revenue wins. The stock's decline reflects investor skepticism about the company's near-term growth and margin targets amid cyclical automotive demand and integration risks from the Synaptics deal. Future investor confidence hinges on ON Semiconductor's ability to disclose concrete AI data center design wins in upcoming quarters.

As of Sep 17, 2026 23:51 WIB, ON Semiconductor trades on Pluang at USD 68.48, showing a 1-day gain of 2.82%, despite the recent 9% drop reported during its investor day. The stock's market cap stands at $25.93 billion with a strong buyer interest reflected in 78% of order activity being buys. This contrasts with the article's note of a sharp decline, highlighting some resilience in ON's trading on Pluang.

More News (ON)

ON Semiconductor's revised $5.7B Synaptics deal boosts earnings outlook, removes share dilution risk.

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