Off Hits Speculative AI Stocks, Quantum Computing Falls First
Quantum computing stocks like IonQ, Rigetti Computing, and D-Wave Quantum have fallen harder than the Nasdaq-100 during tech sector declines in 2026. These companies trade at high forward sales multiples, with IonQ at 52x, Rigetti at 223x, and D-Wave at 148.8x, despite reporting losses and relying on future growth. While their strong cash balances reduce near-term risks, their valuations remain vulnerable to further compression.
How this was made

The 30-second read
Why it matters
High forward‑sales multiples and recent guidance updates suggest heightened downside risk, but strong cash positions provide a cushion.
Market read
The guidance raise for IonQ and the extreme valuation multiples across the sector provide actionable insight for traders monitoring speculative tech exposure.
What to watch
Potential government contracts or breakthrough breakthroughs could dramatically shift valuation dynamics.
Background
The article reviews recent performance and valuation metrics of pure‑play quantum computing companies amid a broader tech sector decline.
Ticker impact
IonQ raised its 2026 revenue guidance to $280M-$290M, up from $260M-$270M, after reporting Q2 revenue of $80.1M.
Potential modest upside if market digests higher guidance.
Guidance improvement offsets valuation compression risk, but high forward-sales multiple limits upside.
Rigetti is trading at over 223x forward sales after Q2 revenue of $5.1M and a $28.1M operating loss.
Likely continued price pressure in a tech sell‑off.
Valuation compression risk remains high despite cash balance.
D‑Wave Quantum posted Q2 revenue of $3.1M, RPO up 668% YoY, and trades at ~149x forward sales.
Limited upside; price may stay flat or decline in broader tech weakness.
Improving demand signals are offset by very high valuation multiples.
Quantum Computing Inc. underperformed the Nasdaq‑100 on 17 of 23 tech‑sell‑off days, showing higher volatility.
Expect further downside if tech sector weakness persists.
Historical outperformance of the index during sell‑offs signals heightened risk.
Market effects
Quantum computing stocks may lag broader tech indices during sell‑offs, increasing sector‑wide risk.
U.S. tech investors likely to reduce exposure to speculative quantum plays.
Limited to investors focused on high‑growth speculative tech.
Counterpoint
If cash balances remain strong, the sector could rebound faster than implied by current multiples.
Key entities
- companyIonQ
Quantum computing firm with new 2026 revenue guidance.
- companyRigetti Computing
Quantum computing firm trading at >223x forward sales.
- companyD‑Wave Quantum
Quantum computing firm with rapid RPO growth.
- companyQuantum Computing Inc.
Quantum computing firm underperforming Nasdaq‑100 on sell‑offs.




