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SBXD

OTC SBXDFDeal announced

SilverBox Corp IV

Merging with Parataxis

Deal announced 2025-08-07

Pulse

55

→Steady

0–100 vitality — and a read on how the book feels about this shell.

% done

23%

Path to close

Price

$10.83

Mkt 69.55M

What is Pulse?

SPAC Pulse measures the current vitality of a deal on a 0–100 scale. A new IPO starts near 50 — a healthy heart with room both ways. It is not weakening just because nothing has printed yet. Weakening is a tag for a slowing beat (stalling cadence), not a quiet shell. 10-Q / 10-K on time is a good beat; an NT is a deficiency. File the report late, then file the NT late, and Pulse falls — that is how public investors read whether management is on top of the shell. Filing recovers some of it. It never pretends the miss did not happen. When other new IPOs file that window on time, they are no longer equal — those shells are healthier. High readings mean the deal book is accelerating; low readings flag life-support risk. Full methodology lives on the desk.

Rate + Lead II · 25 mm/s

Pulse Timeline

Top trace is the Pulse rate. Bottom is the filing lead — R-wave when the rate lifts, QS when it slows. Height is the change.

0255075100II
  1. 11-12 10-Q
  2. 03-19 10-K
  3. 05-15 10-Q
  4. 08-12 10-Q
  5. 09-25 Listing deficiency
  6. 10-07 Now
Auto interpretation · Lead II printoutNormal sinus rhythmPulse 55

Regular beats, no life-support flag. Read the marks below for what moved it.

Silent —Beats/90d 0Recent gap —

Marks on this strip

  • 08-07Deal announced. Contract signed. Close-path clock starts. +15
  • 08-1210-Q. Periodic report on time. +5
  • 11-1210-Q. Periodic report. Pulse -2 — calendar, not the S-4.
  • 03-1910-K. Periodic report. Pulse -2 — calendar, not the S-4.
  • 05-1510-Q. Periodic report. Pulse -2 — calendar, not the S-4.
  • 08-1210-Q. Periodic report. Pulse -2 — calendar, not the S-4.
  • 09-25Listing deficiency. Exchange notice that day. It belongs on this date, not today. Pulse does not double-haircut an already-slow book.
  • 10-07Now. No new filing. Rate holds from the last mark.

Impression: Regular beats, no life-support flag. Read the marks below for what moved it.

Unconfirmed machine read · not medical advice · not financial advice

Historical context

Post-DA in the archive

Precedent from 36 names in the Pulse archive (closed, liquidated, and broken deals). Archive base rate is one input; live beat speed then moves Pulse. Not a forecast.

Close rate
97%
Median days left
155
Archive n
36

Status

Announced

Exchange

NYSE as SBXDF

Rights

No

Warrants

Listed

CIK

0002015947

IPO date

2024-08-16

Market cap

69.55M

Days to deadline

—

SEC tickers

SBXD, SBXD-UN, SBXD-WT

Sponsor

—

S-4 / F-4 filer

SPAC (typical)

Fiscal year

December 31

Next filing

10-Q 2026-11-14

Vote

—

Schedule

What is due next

Fiscal year
Ends December 31 · 10-K cover
This window
10-Q due 2026-08-14 · filed
Next due
10-Q 2026-11-14Period 2026-09-30
Pulse
+6

10-Q for period ended 2026-06-30, due 2026-08-14. 10-Q 2026-08-12 on time (+6).

On time with this window. Pulse stays even with the other new listings that filed.

Meetings

No shareholder meeting dated in the Q&A or calendar.

Price history

Delayed exchange prints — common, rights, units, warrants when listed. Last price is in the header. This tape does not move Pulse.

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S-4 amendment timeline

Shrinking gaps mean the deal is progressing. The tag says whether that filing cleared a checklist, dropped a hurdle, or repriced the deal.

  • Deal book

    On file

    No S-4 / F-4 on file. Still a search.

  • 10-Q / 10-K

    On file

    10-Q for period ended 2026-06-30, due 2026-08-14. 10-Q 2026-08-12 on time (+6).

  1. 10-Q2026-08-12

    10-Q

  2. 8-K2026-08-05

    Item 1.01 Amendment to Business Combination Agreement — Parataxis

  3. 4252026-08-05

    425

  4. 10-Q2026-05-15

    10-Q

  5. 4252026-05-12

    425

Show 32 more filings
  1. 8-K2026-05-12

    FORM 8-K

  2. 8-K2026-05-04

    Item 1.01 Amendment to Business Combination Agreement — Parataxis

  3. 4252026-05-04

    425

  4. 10-K2026-03-19

    10-K

  5. 4252026-02-04

    425

  6. 4252025-12-04

    425

  7. 8-K2025-12-04

    FORM 8-K

  8. 10-Q2025-11-12

    10-Q

  9. 8-K2025-11-06

    FORM 8-K

  10. 4252025-11-06

    425

  11. 4252025-10-15

    425

  12. 8-K2025-09-04

    FORM 8-K

  13. 4252025-09-04

    425

  14. 4252025-09-02

    425

  15. 10-Q2025-08-12

    10-Q

  16. 4252025-08-08

    425

  17. 8-K2025-08-07

    Item 1.01 Entry Into A Material Definitive Agreement — Parataxis

  18. 8-K2025-08-07

    Item 1.01 Amendment to Business Combination Agreement — Parataxis

  19. 4252025-08-07

    425

  20. 4252025-08-07

    425

  21. 4252025-08-07

    425

  22. 8-K2025-06-27

    FORM 8-K

  23. 8-K2025-06-20

    FORM 8-K

  24. 8-K2025-06-09

    FORM 8-K

  25. 10-Q2025-05-13

    10-Q

  26. 10-K2025-03-13

    10-K

  27. 10-Q2024-11-12

    10-Q

  28. 8-K2024-10-04

    FORM 8-K

  29. 10-Q2024-09-23

    10-Q

  30. 8-K2024-09-23

    FORM 8-K

  31. 8-K2024-08-23

    FORM 8-K

  32. 8-K2024-08-19

    FORM 8-K

Your notes

Saved on this device only.

Journal

Latest journal

All notes
  1. Cayson paid $125,000 for month six. Time is not an S-4/A.CAPN · 2026-08-26
  2. THEO filed a 10-Q they did not have to. Early cadence.THEO · 2026-08-26
  3. B&R Technology filed an 8-K. Unregistered sales, Pulse 52.BRTM · 2026-08-25
  4. Karman Line filed an 8-K. Other events. Pulse 52.XTER · 2026-08-25
  5. Mercator filed late. The NT is a missed beat.MRCO · 2026-08-25