Weekly Roll-up — 2026-W17
Week of 2026-04-20 through 2026-04-26 (ISO 2026-W17). Generated 2026-04-27.
This is the first weekly roll-up the system has published. The methodology footer at the bottom of this issue describes how the window was constructed, what the catch-up wrappers in /daily/ represent, and how Phase B miss flags surface for the first time.
1. The week in one paragraph
Four events cleared the noise filter in 2026-W17. Two were material corporate-action items in computing M&A: Honeywell’s 2026-04-23 confirmation of Quantinuum’s confidentially-filed S-1 with Q2 2026 deconsolidation expected (score 7), and the FTC’s 2026-04-24 HSR Second Request on the IonQ–SkyWater merger, publicly disclosed via 8-K on the same day and first surfaced by this system on the following day’s Phase C run (score 7). IBM’s 2026-04-22 Q1 earnings (EPS $1.91 versus $1.81 consensus) reaffirmed the FTQC-by-2029 target and disclosed an expanded UIUC partnership (score 6). Cerca Magnetics closed a £3.8M Series A on 2026-04-21 to scale its quantum brain-scanner deployments (score 5, sensing). Three of seven calendar days produced no events; two of those three are retroactive catch-up wrappers written this week, and the third (2026-04-20) was an operationally-quiet day under live pipeline operation.
2. The five developments that mattered most
The week produced four events that cleared the noise filter, not five. Per §12.2 (“fewer if the week was genuinely quiet”), this section runs four entries.
1. FTC HSR Second Request on the IonQ–SkyWater merger (2026-04-24, score 7)
IonQ and SkyWater each received a request for additional information from the U.S. Federal Trade Commission in connection with the FTC’s review of IonQ’s pending acquisition of SkyWater Technology. Per IonQ’s 2026-04-24 Form 8-K (Item 8.01, accession 0000950142-26-001187), the Second Request extends the HSR Act waiting period until 30 days after both parties have substantially complied with the request, unless extended voluntarily by the parties or terminated earlier by the FTC. The parties stated they expect to respond promptly and continue to target completion of the mergers in Q2 or Q3 2026.
What to watch. FTC compliance pace and any remedies demanded; IonQ Q1 2026 earnings on 2026-05-06; whether the IONQ super-cycle catalyst chain holds without a deal-extension data point. Historical Second Requests on deals of comparable size add 4–12 months to the review window.
2. Honeywell confirms Quantinuum S-1 + Q2 2026 deconsolidation (2026-04-23, score 7)
In its Q1 2026 earnings release (EPS $2.45 versus $2.34 consensus, revenue $9.14B versus $9.28B estimate, segment margin +90bps to 23.3%), Honeywell confirmed that Quantinuum confidentially submitted a draft S-1 registration statement to the SEC on 2026-02-17 and stated Honeywell expects to deconsolidate Quantinuum’s results beginning in Q2 2026. Honeywell also announced a sale of its Warehouse and Workflow Solutions business to American Industrial Partners.
What to watch. S-1 conversion from confidential to public; pricing terms; the listing-day close. A priced listing of the largest pure-play quantum revenue name would, if executed at the disclosed-revenue trajectory, become a new pricing-reference for the listed-quantum universe and reshape comparables for Xanadu, IonQ, and QBTS.
3. IBM Q1 2026 earnings reaffirm FTQC-by-2029 (2026-04-22, score 6)
IBM reported Q1 2026 EPS $1.91 versus $1.81 consensus (+5.5% beat) with revenue +6% YoY. CEO Arvind Krishna reaffirmed IBM’s target to deliver a large-scale fault-tolerant quantum computer by 2029, disclosed an expanded quantum research partnership with the University of Illinois, and noted IBM’s role in a $2M healthcare quantum challenge. The big-tech-parent earnings filter (§7.4 rule 8) was satisfied by the FTQC-2029 reaffirmation, the named UIUC expansion, and the named challenge program.
What to watch. The next IBM Quantum architecture announcement; whether 2029 holds as the public target through 2026-end roadmap updates.
4. Cerca Magnetics £3.8M Series A (2026-04-21, score 5)
Cerca Magnetics, a UK-based quantum-sensing company building optically-pumped-magnetometer brain-imaging systems, closed a £3.8M (≈$4.7M USD) Series A to scale manufacturing and clinical deployments. The round sits below the §8.2 funding-event score-6 anchor for the sub-domain ($50–150M Series B) and is recorded as notable rather than landscape-moving.
What to watch. Clinical deployment milestones; competitive position versus Sandia/National Lab licensees and Compumedics-class classical MEG incumbents.
3. Capital flow
Rounds in the W17 window.
| Date | Company | Stage | Amount | Domain |
|---|---|---|---|---|
| 2026-04-21 | Cerca Magnetics | Series A | £3.8M (≈$4.7M USD) | Sensing / medical-imaging |
Total disclosed primary-round capital in window: ≈$4.7M (one round). No Series B/C-class hardware financings landed in window.
IPO development in window.
- Quantinuum — confidential S-1 filing of 2026-02-17 publicly disclosed via Honeywell’s Q1 release on 2026-04-23. Q2 2026 deconsolidation expected. The S-1 has not converted from confidential to public; pricing terms have not been disclosed.
Retroactively surfaced (Phase B miss flag, Phase C review inventory).
- Imec SPINS €50M EU pilot line (2026-04-03). Flagged as missed during Phase B’s 30-day backfill; not picked up in any prior daily run window. Falls outside the W17 window (2026-04-03 sits in 2026-W14). Surfaced here because this is the first weekly roll-up the system has produced and the item has not appeared in any prior weekly. Not yet absorbed into a structured event record. Future runs may absorb this with
first_reportedlater thandate, mirroring the IonQ-FTC pattern; alternatively, surfaced-only-in-weekly is acceptable per §13’s audit-trail-preserved principle.
4. Technical progress tracker
Superconducting. IBM did not announce new technical milestones in window. The Q1 2026 earnings call (2026-04-22) reaffirmed prior FTQC-by-2029 commitments without architectural or fidelity detail; active monitoring continues for the next IBM Quantum architecture announcement. The 2029 target remains the public-commitment reference point against which Rigetti’s TeraQuOp-2035 target, Alice & Bob’s fault-tolerance roadmap, and Q-Factor’s million-qubit ambition are benchmarked.
Ion-trap. No new architecture or fidelity milestone in window. The IonQ–SkyWater vertical-integration thesis (in-house trapped-ion fabrication via SkyWater’s Bloomington facility) is now subject to an FTC HSR Second Request, extending the integration timeline by an indeterminate margin. The 6th-generation 256-qubit trapped-ion roadmap that anchors the 2026-04-09 Horizon Quantum strategic agreement and the post-2026-04-14 DARPA HARQ rerating depend on integration-completion timing.
Photonic, neutral-atom, spin-qubit, NV-center, topological. No events in window.
Retroactively surfaced (Phase B miss flag, Phase C review inventory).
- IonQ + Q-CTRL Fire Opal integration (2026-04-23). Flagged as missed during Phase B’s daily backfill on the same calendar day Honeywell reported earnings; not picked up because the Honeywell event saturated that day’s reporting. Q-CTRL’s Fire Opal error-suppression product was integrated with IonQ’s trapped-ion hardware. The integration falls into the technical-progress tracker for ion-trap modality as an error-mitigation tooling layer rather than a hardware-fidelity step. Not yet absorbed into a structured event record.
5. Talent movement
No talent events in window.
6. Policy & geopolitics
One policy/regulatory event in window.
- FTC HSR Second Request, 2026-04-24 — U.S. antitrust review escalation on the IonQ–SkyWater merger. The Second Request is the first formal regulatory action on the deal since its 2026-01-25 announcement. No remedies have been demanded; no challenge has been filed.
The PQC-related policy thread was last advanced in the prior ISO week (2026-W16) by the Senate Commerce Committee’s 2026-04-15 NQI Reauthorization advance; no further movement landed in W17. The UK ProQure programme submission window remains open through 2026-05-29; no Phase 1 awards were announced.
7. Post-quantum cryptography
No PQC events in window. The PQC migration convergence thread is currently anchored to the 2026-04-15 NQI Reauthorization event in state.json open_threads.
8. Insider signals
No insider_pattern events promoted in W17. state.open_insider_patterns remained empty at start and end of week.
The trailing-90-day insider-transactions stream grew during 2026-04-20 through 2026-04-22 (filing dates) by routine activity at Amazon, IBM, and SEALSQ (5 of the 19 trailing transactions land in the W17 portion of the stream). The 90-day cumulative net-position-by-company snapshot, per state.insider_watch:
| Company | Tx count | Distinct sellers | Distinct buyers | Net value USD |
|---|---|---|---|---|
| Alphabet | 3 | 3 | 0 | -$3,008,013 |
| Amazon | 3 | 2 | 0 | -$13,138,000 |
| Arqit Quantum | 6 | 6 | 0 | -$186,828 |
| D-Wave Quantum | 1 | 1 | 0 | -$65,545 |
| SEALSQ | 8 | 3 | 0 | -$210,800 |
All five tracked companies with stream activity show net-sell composition over 90 days. No net-buy at any tracked entity.
Caveat. Insider activity is a lagging, noisy indicator. Absolute aggregate values for the four small-cap tracked entities (Arqit, D-Wave, SEALSQ, plus Alphabet and Amazon as big-cap parents tracked for context) sit below Pattern A’s $500K aggregate floor on the small-cap names; pattern detection trips no thresholds. The small-cap insider under-detection question is a Phase 2-backlog calibration item awaiting the 90-day backtest review.
9. Competitive positioning
Evidential snapshot for W17.
This week’s events concentrated at the top of the score band on IonQ and the joint Honeywell–Quantinuum entry, with single events at IBM and Cerca Magnetics below.
| Score band | Companies with events |
|---|---|
| ≥ 7 | IonQ (1, 04-24); Honeywell + Quantinuum (1, 04-23, joint) |
| 6 | IBM (1, 04-22) |
| 5 | Cerca Magnetics (1, 04-21) |
Open threads advanced in window (per state.json open_threads):
- Quantinuum IPO pending — last_event advanced from the off-stream 2026-02-17 confidential filing reference to 2026-04-23 (Honeywell public confirmation + Q2 deconsolidation expectation).
- IONQ super-cycle catalyst chain — last_event advanced to 2026-04-24 (FTC HSR Second Request).
- Superconducting vs ion-trap enterprise-utility race — last_event advanced to 2026-04-24 (FTC review timing affects the vertical-integration completion against Rigetti’s modular-superconducting roadmap).
Open threads not advanced in window: UK ProQure Phase 1 awards (submission window remains open through 2026-05-29); PQC migration convergence (last advanced 2026-04-15, prior week); Maryland ‘Capital of Quantum’ cluster formation (last advanced 2026-04-13, prior week); NVIDIA Ising ecosystem adoption curve (last advanced 2026-04-14, prior week; awaiting next adopter).
Trailing-30-day momentum window note. The 30-day momentum view rolls forward this week. Events on 2026-03-26 and 2026-03-27 drop out as the window advances from [2026-03-26..2026-04-25] to [2026-03-28..2026-04-27]. Specifically affected: Xanadu’s 2026-03-27 de-SPAC trading debut event (the prior view’s score-8 event) ages out, and Xanadu’s events_30d transitions 1→0 in next week’s momentum_signals snapshot. Also dropping at this boundary: 2026-03-26 IBM materials-properties demonstration; 2026-03-26 IonQ Scannell board election (RF-16 backfill); 2026-03-26 OQD/Western Digital/QuScript open-source collaboration; 2026-03-26 John Martinis White House panel appointment; 2026-03-27 SBQuantum MagQuest mission selection; 2026-03-27 UK ProQure programme launch. The drop is window-mechanics, not relevance change. Xanadu’s post-IPO operational metrics will refresh in subsequent weeks via earnings calendar pulls; the named open thread (UK ProQure) advances on its own award-cycle calendar regardless of trailing-30 visibility.
10. Corrections log
No corrections issued in W17.
11. What’s quiet
- Photonic computing. No events in window. Quandela, PsiQuantum, Xanadu absent from the week’s reporting.
- Spin-qubit computing. No events in window. Diraq, Quantum Motion, Equal1, Photonic Inc absent.
- Neutral-atom computing. No events in window. Atom Computing, QuEra, Pasqal, Q-Factor absent.
- NV-center sensing. No events in window. SBQuantum’s 2026-03-27 MagQuest selection ages out of the trailing-30 view in next week’s snapshot.
- Post-quantum cryptography product launches and standards. No NIST draft, no vendor PQC product launch, no standards-body movement in window.
- Government quantum programme awards. No DOE / NSF / NIST / UK ProQure / EU Commission grant announcements in window.
- Earnings calendar. IBM (Wednesday) and Honeywell (Thursday) were the only tracked-universe earnings reports in window. IonQ Q1 2026 lands 2026-05-06.
12. Sources
FTC HSR Second Request on the IonQ–SkyWater merger (2026-04-24).
- SEC EDGAR (IonQ 8-K, Item 8.01, accession 0000950142-26-001187): https://www.sec.gov/Archives/edgar/data/1824920/000095014226001187/0000950142-26-001187-index.htm
- MLex: https://www.mlex.com/mlex/mergers-acquisitions/articles/2469931
- TradingView News: https://www.tradingview.com/news/tradingview:0b9037ac720b2:0-ionq-receives-ftc-second-request-extending-hsr-waiting-period-for-skywater-merger/
- Investing.com: https://www.investing.com/news/sec-filings/ftc-issues-second-request-for-information-on-ionq-and-skywater-merger-93CH-4637162
Honeywell-Quantinuum Q1 + IPO confirmation (2026-04-23).
- Honeywell via PR Newswire: https://www.prnewswire.com/news-releases/honeywell-reports-first-quarter-results-and-reaffirms-2026-outlook-announces-sale-of-warehouse-and-workflow-solutions-302751131.html
- Honeywell Investor Relations (Q1 presentation): https://investor.honeywell.com/static-files/6ff901cd-a05a-46a7-8d74-393f1417e1e9
- HPCwire: https://www.hpcwire.com/2026/04/22/honeywell-confirms-quantinuum-ipo-filing-as-quantum-firms-face-market-scrutiny/
- EODHD: https://eodhd.com/financial-apis/insider-transactions-api
IBM Q1 2026 earnings + FTQC-2029 reaffirmation (2026-04-22).
- IBM Investor Relations: https://www.ibm.com/investor/events/earnings-1q26
- Motley Fool (call transcript): https://www.fool.com/earnings/call-transcripts/2026/04/22/ibm-ibm-q1-2026-earnings-call-transcript/
- EODHD: https://eodhd.com/financial-apis/insider-transactions-api
Cerca Magnetics £3.8M Series A (2026-04-21).
- The Quantum Insider: https://thequantuminsider.com/2026/04/21/cerca-magnetics-secures-38m-series-a-funding-scale-quantum-brain-scanner/
Methodology footer
Window. 2026-04-20 through 2026-04-26 (ISO 2026-W17). Last Sunday: 2026-04-26.
Daily-file coverage in window. Five of seven daily files contain content from a live pipeline run on the date in question. Two are retroactive catch-up wrappers written 2026-04-27 to restore the wrapper-always invariant after run-day gaps on 2026-04-24 and 2026-04-26 — these wrappers contributed zero events to this aggregation by design. The 2026-04-20 wrapper is operationally-quiet (the pipeline ran live on the date and found no events meeting the threshold), distinct from the retroactive-fill category.
The IonQ-SkyWater FTC HSR Second Request event of 2026-04-24 is preserved in daily/2026-04-25.json (first_reported: 2026-04-25) where the Phase C run on 2026-04-25 originally placed it. It is not duplicated in 2026-04-24’s catch-up wrapper. Spec §5.1 distinguishes event.date from the run-date of the wrapper file; this aggregation reads the event from its correct location and counts it once.
Phase B miss flags surfaced retroactively per the Phase C review-flag inventory:
- Imec SPINS €50M EU pilot line (2026-04-03) — surfaced in §3 capital flow. Falls outside the W17 window. Surfaced because this is the first weekly roll-up the system has produced.
- IonQ + Q-CTRL Fire Opal integration (2026-04-23) — surfaced in §4 technical progress, ion-trap modality. Falls inside the W17 window but was not picked up by Phase B’s daily run on that date.
Neither retroactively-surfaced item has been absorbed into a structured event record.
Insider-pattern detection ran against the 19-record trailing-90-day stream; no patterns promoted. No corrections issued. Wrapper-schema gap (no wrapper_provenance field distinguishing operationally-quiet from retroactive-fill) is queued to meta/phase-2-backlog.md as a proposed Phase 2 enum.
On the “what’s quiet” naming convention. The §11 listings name specific absent companies for reader orientation. These lists are informative, not exhaustive: a company’s omission from a “what’s quiet” line in any given week does not imply that company had activity that week. Future weeklies should follow the same convention: name a representative subset of expected actors in each quiet category to anchor the reader, but do not infer activity from non-mention.
This is the first weekly roll-up the system has published; subsequent weeklies will reference this issue’s coverage approach as the precedent.