ON Semiconductor stock gains as analysts see undervaluation
Published on 09/19/2026 at 20:05 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
ON Semiconductor stock (ISIN US6821891035) closed at USD 69.98 on Nasdaq on September 18, 2026, giving the chip maker a market capitalization of about USD 27.2 billion after a 5.08% gain over the past 24 hours, according to data compiled by FairCurve and Pluang as of September 19, 2026.
Quant model sees over 40 percent upside
According to FairCurve on September 19, 2026, ON Semiconductor stock last closed at USD 69.98 while the research firm’s fair value model estimates intrinsic value at USD 98.80 per share, implying a potential upside of 41.2% from the current level.
In the same quantitative screen, FairCurve ranks ON Semiconductor third among the most undervalued semiconductor stocks for September 2026, with a quality score of 65 and a stated market value of USD 27.2 billion as of the latest close.
Stock moves with broader chip rally
The recent strength in ON Semiconductor stock comes against a supportive sector backdrop, with the Philadelphia Semiconductor Index rising 2.78% in the latest session as chip names broadly advanced on expectations of sustained demand from artificial intelligence applications, according to Seoul Economic Daily on September 19, 2026.
Per comparative data from Pluang on September 19, 2026, ON Semiconductor trades at USD 69.98, up 5.08% over 24 hours, while still described as being in a bearish technical trend, underscoring that the latest rebound has not yet fully reversed the prior downtrend in the shares.
ON Semiconductor fundamentals and positioning
ON Semiconductor Corporation, which markets itself under the onsemi brand, focuses on intelligent power and sensing technologies for automotive, industrial and AI data center end-markets, according to a company profile distributed via Via Ritzau on September 19, 2026.
The company highlights that its differentiated power management and sensing portfolio is designed to help customers improve energy efficiency, performance and system cost while supporting electrification and automation trends across vehicles and industrial equipment, as noted in the Via Ritzau release from September 19, 2026.
ON Semiconductor is part of the S&P 500 index, according to Via Ritzau on September 19, 2026, which means movements in the stock feed directly into one of the key US benchmark indices followed by global investors.
Analyst action and risk factors
On the analyst side, Truist Securities has recently adjusted its stance on ON Semiconductor stock, cutting the price target to USD 75 from USD 91 while maintaining a Hold rating, as reported by Moomoo News on September 19, 2026.
According to the same Moomoo News report dated September 19, 2026, Truist’s analysts now see only limited upside versus the USD 69.98 recent close, with the new USD 75 price target standing just about 7.2% above the latest price compared with roughly 30.1% previously when the target was USD 91.
This more cautious brokerage stance contrasts with the more optimistic quantitative fair value estimate from FairCurve, where the USD 98.80 model value implies about 41.2% upside against the USD 69.98 last close; the divergence underlines how views on ON Semiconductor’s earnings power and growth trajectory differ across methodologies.
For investors, one key risk highlighted implicitly in these reports is that ON Semiconductor’s exposure to cyclical semiconductor end-markets such as automotive and industrial equipment could lead to volatility in revenue and margins if macro conditions or capital spending plans weaken, while higher interest rates and changing discount-rate assumptions can affect valuation models like that used by FairCurve.
ON Semiconductor stock and upcoming checkpoints
With ON Semiconductor stock trading at USD 69.98 on Nasdaq as of the close on September 18, 2026, and Truist Securities’ adjusted USD 75 price target signaling modest expected upside, the shares now sit in a valuation zone where quantitative screens see significant undervaluation while at least one covering broker remains cautious on near-term performance.
In the coming months, investors will watch closely how ON Semiconductor converts its positioning in intelligent power and sensing for automotive, industrial and AI data center customers into sustained revenue and earnings growth, with the next quarterly reporting date and any updated guidance likely to be key catalysts for reassessing whether the roughly 41.2% modeled upside from FairCurve is realistic.
ON Semiconductor stock key data
- Company: ON Semiconductor Corporation
- ISIN: US6821891035
- Ticker: ON
- Trading venue: Nasdaq
- Price (as of September 18, 2026): 69.98 USD
- Market capitalization: 27.2 billion USD (as of September 18, 2026)
- Sector / Industry: Semiconductors
- Index membership: S&P 500
