Best quantum computing stocks in 2026: ranked by real data
Every listed company in the Quantum computing value chain (5 stocks), mechanically ranked by actual market data. No opinions, no January listicle. Re-ranked every trading day.
As of August 26, 2026, the strongest quantum stock this year is FormFactor (FORM, +93.4% YTD), while IonQ leads on size at $17.9B. Unlike a listicle written in January, this page re-ranks itself every trading day from real market data.
Top 10 by return this year
Total return YTD, prices adjusted for splits and dividends.
| # | Company | YTD return | 1Y return | Market cap |
|---|---|---|---|---|
| 1 | FormFactorFORMEnablers, test & components | +93.4% | +270.0% | $10.5B |
| 2 | IonQIONQQuantum hardware & platforms | −8.5% | +3.2% | $17.9B |
| 3 | Quantum Computing Inc.QUBTQuantum hardware & platforms | −19.7% | −47.9% | $2B |
| 4 | Rigetti ComputingRGTIQuantum hardware & platforms | −26.1% | +10.5% | $6.2B |
| 5 | D-Wave QuantumQBTSQuantum hardware & platforms | −28.6% | +20.2% | $7.8B |
Data as of 2026-08-26 · updates daily after U.S. close
The 10 largest by market cap
The heavyweights of the quantum chain.
| # | Company | Market cap | Today | P/E |
|---|---|---|---|---|
| 1 | IonQIONQQuantum hardware & platforms | $17.9B | +2.4% | 54.6 |
| 2 | FormFactorFORMEnablers, test & components | $10.5B | −0.2% | 91.2 |
| 3 | D-Wave QuantumQBTSQuantum hardware & platforms | $7.8B | +3.6% | — |
| 4 | Rigetti ComputingRGTIQuantum hardware & platforms | $6.2B | +3.5% | — |
| 5 | Quantum Computing Inc.QUBTQuantum hardware & platforms | $2B | +2.7% | — |
Methodology: the universe is Sectivia's curated Quantum computing value chain: U.S.-listed companies grouped by their role in the chain. Rankings are purely mechanical from daily Finnhub data. "Best" here means best on the stated metric, not a recommendation. Companies without data for a metric are excluded from that table.
See all 5 companies on the interactive Quantum value-chain map: segments, supply-chain links and daily metrics.Open the Quantum map →