Quantinuum Inc. (QNT)
QNT moved a median of +0.70% 30 minutes after news, and -4.56% by the close. How QNT actually reacts to news — the realized, point-in-time move the market made, measured across 96 labeled events over the last three years with zero look-ahead.
QNT’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.63% | 37% | 95 |
| 30-min | +0.70% | 57% | 95 |
| 60-min | -2.15% | 34% | 95 |
| to close | -4.56% | 24% | 95 |
| Middle 50% of QNT reactions | -2.24% to +1.47% |
|---|---|
| Median reaction (30-min) | +0.70% |
| Measured reactions | 96 |
Half of all Quantinuum Inc. news events land between -2.24% and +1.47% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How QNT reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Coverage initiations | 39 | -9.95% | 18% | -8.38% |
| Rating reiterations | 12 | +3.85% | 58% | +16.39% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 2 further classes were observed with fewer than 10 measured events and are not published. See how QNT ranks against every other measured name →
That’s how QNT usually reacts — get an email when it moves on news →Email me when QNT moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to QNT's baseline. Nothing else.
Recent QNT events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Quantinuum Breaks Error-Correction World Record by 10x, Validating Its Leading Path to Fault-Tolerant Quantum Computing by 2029 | Press release | Canada Newswire | -2.73% | -9.93% | |
| Quantinuum and The University of Western Australia Partner to Advance Australia's Quantum Capability | Press release | Canada Newswire | -0.72% | -1.24% | |
| Quantinuum to Participate in the Piper Sandler 5th Annual Growth Frontiers Conference | Press release | PR Newswire | +1.03% | +3.17% | |
| Form 8-K Quantinuum Inc. For: Sep 08 | SEC filing · Form 8-K | SEC EDGAR | +2.25% | -2.63% | |
| Quantinuum Finalizes $100 Million CHIPS R&D Award with U.S. Department of Commerce to Advance Trapped-Ion Quantum Computer Manufacturing in the US | Press release | Canada Newswire | -0.34% | -3.02% | |
| Quantinuum to Participate in the Bernstein 23rd Annual Pan-European Strategic Decisions Conference | Press release | Canada Newswire | -0.34% | -3.02% | |
| Form 10-Q Quantinuum Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.56% | -6.49% | |
| Quanta Computer and Quantinuum Partner to Build an Industrial Foundation for Large-Scale Quantum Computing | Press release | Canada Newswire | +0.56% | -6.49% | |
| Form 8-K Quantinuum Inc. For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | +2.01% | +20.27% | |
| Quantinuum and Oracle Partner to Accelerate Hybrid Quantum Compute Adoption on Oracle Cloud Infrastructure | Press release | Canada Newswire | +2.01% | +20.27% | |
| Quantinuum Reports Second Quarter 2026 Results | Press release | PR Newswire | +2.01% | +20.27% | |
| Quantinuum to Report Second Quarter Financial Results on August 11, 2026 | Press release | Canada Newswire | -3.73% | -4.27% | |
| Quantinuum Appoints Chief Legal Officer and Chief People Officer | Press release | Canada Newswire | +2.50% | +5.14% | |
| Quantinuum and SoftBank Corp. Publish Joint White Paper on Scaling Practical Quantum Computing Use Cases Toward the Fault-Tolerant Era | Press release | Canada Newswire | -0.63% | -4.56% | |
| Quantinuum, Rolls-Royce, Riverlane and University of Edinburgh Sign Agreement to Explore Quantum Computing for Industrial Design and Simulation | Press release | Canada Newswire | +0.14% | +3.30% | |
| Tradr Introduces Leveraged ETFs on Ciena, Quantinuum, Rambus, Tower Semiconductor and TTM Technologies | Press release | PR Newswire | -3.41% | -1.27% | |
| Tradr to Launch Leveraged ETFs on CIEN, QNT, RMBS, TSEM & TTMI | Press release | PR Newswire | -0.10% | +12.37% | |
| Quantinuum Announces Closing of Upsized Initial Public Offering | Press release | Canada Newswire | +0.20% | -0.44% | |
| Form 8-A12B Quantinuum Inc. | SEC filing · Form 8-A12B | SEC EDGAR | -3.94% | -11.21% | |
| Form CERT Quantinuum Inc. | SEC filing · Form CERT | SEC EDGAR | -3.94% | -11.21% | |
| Form EFFECT Quantinuum Inc. | SEC filing · Form EFFECT | SEC EDGAR | -3.94% | -11.21% | |
| Form S-8 Quantinuum Inc. | SEC filing · Form S-8 | SEC EDGAR | -3.94% | -11.21% | |
| Form S-1MEF Quantinuum Inc. | SEC filing · Form S-1MEF | SEC EDGAR | -3.94% | -11.21% | |
| Quantinuum Announces Pricing of Upsized Initial Public Offering | Press release | Canada Newswire | -3.94% | -11.21% | |
| Form S-1/A Quantinuum Inc. | SEC filing · Form S-1 | SEC EDGAR | — | — |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the QNT section they belong to.
Where else QNT is measured.
QNT earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Quantinuum Inc.'s median reaction calculated?
Every labeled QNT news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 96 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 57% of QNT's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does QNT's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.