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DBCA

Deal announcedLife support

D. Boral Acquisition I Corp.

Merging with Exascale Labs Inc.

Deal announced 2026-07-01

Pulse

↑Life-support risk

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

Life support

% done

30%

Path to close

Price

$9.99

Mkt 432.28M

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.

04-01 10-K
04-01 NT (late notice)
05-14 10-Q
07-01 S-4
08-14 10-Q
10-07 Now

Auto interpretation · Lead II printoutLife supportPulse 62

QRS is weak or missing. Cadence stalled, cash is thin, or the book went quiet.

Silent 98dBeats/90d 0Recent gap —

Marks on this strip

02-1152IPO. New heart. Baseline, room both ways.
04-0151 ↓110-K. Periodic report. Pulse -1 — calendar, not the S-4.
04-0143 ↓8NT (late notice). Late-notice. Housekeeping, scored as a miss until the 10-Q/10-K lands. -8
05-1441 ↓210-Q. Periodic report. Pulse -2 — calendar, not the S-4.
07-0162 ↑21S-4. Book opened. Amendment velocity starts here. +21
08-1467 ↑510-Q. Periodic report on time. +5
10-0762 ↓5Now. No S-4/F-4 beat in 98 days. 98d since the last beat. -5

Impression: last filing printed 67. Live Pulse is 62. No S-4/F-4 beat in 98 days. 98d since the last beat. -5

· No S-4/F-4 beat in 98 days.
· Long silence after a registration statement — cadence looks like life support.

Unconfirmed machine read · not medical advice · not financial advice

Skin in the game

medium

Target

early

Historical context

S-4 on file in the archive

Precedent from 27 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: 100%
Median days left: 105
Archive n: 27

Status

S-4 Filed

Exchange

Nasdaq

Rights

Warrants

Listed

CIK

0002095161

IPO date

2026-02-11

Market cap

432.28M

Days to deadline

—

SEC tickers

DBCA, DBCAU, DBCAW

Sponsor

—

S-4 / F-4 filer

Merger sub · D. Boral ARC Merger Corp

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 2026-08-14 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.

Merging company
On file
Exascale Labs Inc.
Close timing Q&A
On file
second quarter of 2026
Meeting Q&A
Gap
Meeting Q is still a blank. They have not printed a date.
Proxy card
Gap
No form of proxy in the exhibits yet.
10-Q / 10-K
On file
10-Q for period ended 2026-06-30, due 2026-08-14. 10-Q 2026-08-14 on time (+6).

Q&A · close

When is the Business Combination expected to be completed? A. It is currently expected that the Business Combination will be consummated in the second quarter of 2026. This date depends, among other things, on the approval of the proposals to be put to BCAR shareholders at the Extraordinary General Meeting. However, such meeting could be adjourned if the Adjournment Proposal is adopted by BCAR s shareholders at the Extraordinary General Meeting and BCAR elects to adjourn the Extraordinary General Meeting to a later date or dates, if necessary, to permit further solicitation and vote of proxies in the event that there are insufficient votes for the approval of one or more proposals at the Extraordinary General Meeting. For a description of the conditions for the completion of the Business Combination, see The Business Combination Proposal Business Combination Agreement . Q. What happens if the Business Combination is not consummated? A. BCAR wil

Q&A · meeting

When and where will the Extraordinary General Meeting be held? A. The Extraordinary General Meeting will be held at 10:00 A.M., Eastern Time, on [_], 2026 at the offices of Loeb amp; Loeb LLP, 345 Park Avenue, New York, NY 10154. Shareholders may attend the Extraordinary General Meeting in person or virtually via telephone at: Telephone number: __________________ Participant Passcode: __________________. Q. Who is entitled to vote at the Extraordinary General Meeting? A. BCAR has fixed [_], 2026 as the Record Date for the Extraordinary General Meeting. If you were a shareholder of BCAR at the close of business on the Record Date, you are entitled to vote on matters that come before the Extraordinary General Meeting. However, a shareholder may only vote his, her or its shares if he, she or it is present in person or is represented by proxy at the Extr