Best Quantum Stocks — October 2026
Ranked by AltIndex AI Score · updated daily. · Last updated Oct 12, 2026
Quantum computing stocks include companies building next-generation quantum hardware, software, and cloud services. The best quantum stocks usually combine accelerating hiring in research and engineering roles, growing headcount, an improving employee business outlook, and enough cash on the balance sheet to fund a long development roadmap. The AltIndex AI Score combines 10,000+ alternative-data and financial signals to rank the best quantum computing stocks to buy now.
Top Quantum Stocks ranked by AI Score
| Company | Price | Market cap | 6m trend | AI Score | |
|---|---|---|---|---|---|
 |
TeradyneTER |
$402.681% |
$62.3B | 76 | |
 |
|
$351.661% |
$4.26T | 70 | |
 |
IonQIONQ |
$39.891.1% |
$16B | 65 | |
 |
PalantirPLTR |
$209.055.2% |
$477.7B | 60 | |
 |
Rigetti ComputingRGTI |
$14.030.8% |
$4.7B | 57 | |
 |
Quantum CorpQMCO |
$30.434.3% |
$1.2B | 51 | |
 |
SEALSQLAES |
$2.116.2% |
$474.6M | 47 | |
 |
WiMi Hologram CloudWIMI |
$0.640.4% |
$11.8M | 47 | |
 |
Quantum ComputingQUBT |
$7.440.1% |
$1.7B | 45 | |
 |
Glimpse GroupVRAR |
$0.683% |
N/A | 44 | |
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 Quantum category, are Teradyne (currently trading at $402.68 with an AI Score of 76) and Google (currently trading at $351.66 with an AI Score of 70).
🔔 Get alerts when these stocks move
AltIndex alerts you when AI Score crosses or a signal breaks out on any tracked ticker. Free to start.
Sign up →Best Quantum Stocks — 6-month performance
In the last 6 months it's been a good stretch for Quantum Stocks. Teradyne +9.5%, Google +11%, IonQ +34%, Palantir +63.2%. The average 6-month return across these 10 tickers is +44.5%, with 7 of 10 in positive territory — Quantum Corp led at +374%, WiMi Hologram Cloud lagged at -67%.
What if you had invested 6 months ago?
Type any amount and see how an equal-weight basket of these stocks would have played out.
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 Quantum 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 Quantum Stocks
Quantum is early-stage as a commercial market — most pure-play names are pre-revenue or research-stage. Investing here is closer to early-stage tech investing than to established equity research. The list above ranks the public quantum universe by AI Score, with hiring activity and patent filings as the most useful signals.
A handful of pure-plays (IonQ, Rigetti, D-Wave, Quantum Computing Inc.) plus large-cap incumbents with quantum divisions (IBM, Alphabet, Microsoft). The pure-plays move much more on Reddit/sentiment; the incumbents are tracked under broader tech.
At the moment, Palantir is having a strong day — up 5.2% in the last trading session.
The best stocks in the Quantum category, according to recent data, are Teradyne (currently trading at $402.68 with an AI Score of 76) and Google (currently trading at $351.66 with an AI Score of 70). Disclaimer: This is not financial advice. Please do your own research before investing.
The best stocks to buy in the Quantum category, are Teradyne (currently trading at $402.68 with an AI Score of 76) and Google (currently trading at $351.66 with an AI Score of 70). 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 quantum 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 Quantum sector is home to several prominent players. Some of the leading companies include Teradyne, Google, IonQ, among others. Each has its own unique standing in the market, which you can track and list of best stocks above.
Getting notified when a stock gains momentum is a seamless process on our platform. By signing up, you can activate stock alerts that swiftly bring your attention to stocks that experience an impactful move across any of the datasets that we are monitoring. These alerts serve as your proactive guide, ensuring you're always in the loop about emerging trends and conversations, and enabling you to capitalize on potential opportunities as they arise.
See live AI Stock Picks
Every AI Stock Pick is timestamped and tracked publicly — with the full thesis behind each call.
View AI Stock Picks →About AltIndex
