Quantum computing remains the most speculative segment of the US public technology market, with September 2026 offering investors a timely moment to reassess the three dominant pure-play names.
IonQ (NYSE: IONQ), Rigetti Computing (NASDAQ: RGTI), and D-Wave Quantum (NYSE: QBTS) all trade at steep multiples relative to revenue while posting substantial operating losses each quarter.
All three stocks have delivered multi-hundred-percent swings in both directions over the past year, making them suitable only for investors with genuine risk tolerance and disciplined position sizing.
Sentiment has cooled from last autumn’s peak mania, yet the underlying commercial story has arguably strengthened, with backlogs expanding, government contracts landing, and hardware roadmaps advancing faster than previously expected.
IonQ is the largest quantum pure-play by market capitalization, sitting at roughly $17 billion after closing at $42.05 on August 25, with shares up 28.05% over the past month.
Q2 revenue hit $80.05 million, up 286.83% year over year, and management raised full-year 2026 guidance to a range of $280 million to $290 million, with remaining performance obligations growing 297% year over year.
CEO Niccolo de Masi described the quarter as “the fifth consecutive quarter of record results and the strongest quarter in our company’s history,” underscoring the pace of commercial momentum.
The SkyWater acquisition makes IonQ, in management’s own framing, “the only vertically integrated, full-stack quantum platform and the largest merchant supplier to the US and allied quantum ecosystem.”
However, Q2 net income came in at negative $1.87 billion, distorted by $1.6 billion in warrant-liability fair-value changes and $141.8 million in stock-based compensation, with a beta of 3.3 amplifying every setback.
Rigetti Computing shares closed at $16.94 on August 25, up 19.72% over one month but still down 23.52% year to date, with a 52-week range stretching from $12.53 to $58.15.
Rigetti holds $541.29 million in cash and investments with no debt, and has a letter of intent with the U.S. Department of Commerce for up to $100 million in potential CHIPS Act funding over three years.
Q2 revenue of $5.14 million rose 185.29% year over year, while CEO Subodh Kulkarni highlighted the company’s “open modular approach, superconducting gate-based architecture, and chiplet-based scaling strategy” as key competitive differentiators.
The scaling risk is real, as R&D burn reached $20.73 million in Q2 against modest revenue, with Rigetti still heavily dependent on government and academic customers for the bulk of its business.
D-Wave Quantum closed at $19.35 on August 25, carrying the most bullish analyst posture of the three, with a 94% bullish sentiment reading and a consensus price target of $35.24.
D-Wave’s Q2 revenue of $3.076 million fell 0.61% year over year and missed consensus, yet first-half 2026 bookings surged to $35.50 million from just $2.90 million in the prior-year period.
Remaining performance obligations grew 668% year over year to $40.70 million, with commercial customers now representing 62.4% of Q2 revenue compared to 45.1% previously.
New customer engagements with AT&T, Nasdaq Verafin, Oki Electric, Shionogi, and Unisys have broadened D-Wave’s commercial base, and CEO Alan Baratz stated that “D-Wave is translating technical leadership into commercial progress.”
The key risk for D-Wave is the widening gap between bookings and recognized revenue, with adjusted EBITDA loss expanding 85% to $37.1 million and cash falling to $546.2 million from $819.3 million.
Across all three names, the shared speculative profile includes negative forward earnings per share, warrant-driven GAAP volatility, and technology roadmaps extending years into the future before full commercial maturity.
Execution against stated hardware milestones will ultimately determine whether the analyst upside targets are achievable or whether investors face the kind of brutal drawdowns this category has repeatedly delivered.
