Best Semiconductor Stocks — September 2026
Ranked by AltIndex AI Score · updated daily. · Last updated Sep 10, 2026
Semiconductor stocks include chip designers, foundries, and equipment makers powering everything from AI servers to phones and cars. The best semiconductor stocks tend to share accelerating hiring in engineering roles, steady headcount growth, rising web traffic, and strong financial health. The AltIndex AI Score blends 10,000+ alternative-data and financial signals to rank the best semiconductor stocks to buy now.
Top Semiconductor Stocks ranked by AI Score
| Company | Price | Market cap | 6m trend | AI Score | |
|---|---|---|---|---|---|
 |
TSMCTSM |
$429.211.4% |
$2.28T | 83 | |
 |
TeradyneTER |
$372.203% |
$58.2B | 77 | |
 |
CerebrasCBRS |
$191.342.5% |
$46.6B | 76 | |
 |
NVIDIANVDA |
$218.522.2% |
$5.45T | 75 | |
 |
KLA CorporationKLAC |
$177.243.1% |
$246.9B | 74 | |
 |
Lam ResearchLRCX |
$299.285.2% |
$400.9B | 72 | |
 |
CoherentCOHR |
$295.042.8% |
$59.1B | 72 | |
 |
POET TechnologiesPOET |
$7.664.3% |
$1.4B | 72 | |
 |
Navitas SemiconductorNVTS |
$11.233.2% |
$3B | 71 | |
 |
Applied MaterialsAMAT |
$455.952.8% |
$372.1B | 70 | |
Note: The list above is informational. This is not financial advice — always do your own research.
According to our AI score, that incorporates fundamental, technical and alternative data analysis, the best stocks in the Semiconductor category, are TSMC (currently trading at $429.21 with an AI Score of 83) and Teradyne (currently trading at $372.20 with an AI Score of 77).
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Sign up →Best Semiconductor Stocks — 6-month performance
In the last 6 months it's been a good stretch for Semiconductor Stocks. TSMC +28.1%, Teradyne +23.3%, Cerebras -38.5%, NVIDIA +19.5%. The average 6-month return across these 10 tickers is +15%, with 9 of 10 in positive territory — Lam Research led at +36.8%, Cerebras lagged at -38.5%.
What if you had invested 6 months ago?
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Equal-weight basket of the 10 tickers in this list with 6-month price history. Past performance is not indicative of future results.
How we rank the best Semiconductor stocks
Every ticker on this list is ranked by the AltIndex AI Score — a proprietary 0–100 score that combines 10,000+ technical analysis, financial signals, and alternative-data (hiring trends, sentiment, web traffic, employee ratings, insider transactions, etc) into a single number, refreshed daily.
The same score runs on whole portfolios: rate my portfolio to see where your own holdings land against real member portfolios on the same 0–100 scale.
Frequently asked questions about Semiconductor Stocks
Capacity decisions take 2–3 years to come online while demand swings on consumer and enterprise cycles, so semis go through periodic glut/shortage cycles. The 2024–2026 AI capex cycle is reshaping the demand side — reflected in hiring at the chip designers and hyperscalers tracked in the AI Score.
Hiring activity (especially in fab engineering and AI/ML roles), insider transactions, patent filings, and sentiment shifts around earnings. Less driven by social-media chatter than consumer-facing categories.
The best stocks in the Semiconductor category, according to recent data, are TSMC (currently trading at $429.21 with an AI Score of 83) and Teradyne (currently trading at $372.20 with an AI Score of 77). Disclaimer: This is not financial advice. Please do your own research before investing.
The best stocks to buy in the Semiconductor category, are TSMC (currently trading at $429.21 with an AI Score of 83) and Teradyne (currently trading at $372.20 with an AI Score of 77). Note that this is investment advice. The information provided is for educational and informational purposes only and should not be construed as financial or investment advice. Conduct your own research or consult a qualified professional before making any investment decisions.
Our price data undergoes updates every 30 minutes to ensure you receive the most recent information. The AI score is updated daily.
The best semiconductor stocks are identified based on the AI score, a dynamic metric calculated using a smart algorithm that analyzes financial, technical, and alternative data.
The AI score is a unique metric that aggregates insights from various alternative datasets such as revenue, business outlook, webpage traffic, app downloads, and stock sentiment to provide a comprehensive view of a company's standing in the market. It is calculated using advanced algorithms to analyze and weight each dataset appropriately, resulting in a score that can help guide your investment decisions.
The Semiconductor sector is home to several prominent players. Some of the leading companies include TSMC, Teradyne, Cerebras, among others. Each has its own unique standing in the market, which you can track and list of best stocks above.
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