CHARLIEby TWENTY1 VENTURES
Tell us about your seat. See what it could pay.

01The commitment

Annual commitment
$

02The term

Term
2 years 3 years 4 years 5 years

Total commitment

03Assumed Bitcoin CAGR

%

Profit at term
Seat annual IRRAnnual IRR
Multiple on cash inMultiple
Growth needed to be wholeTo be whole
Cash invested:three different waysthree ways
Buy outrightOutrightall on day oneday one
Average inmonthly, over the termmonthly
CHARLIE
Dollars at work, day oneDollars at work
Bitcoin at work, day oneBitcoin at work
Profit at your viewProfit
Wealth at termWealth
If Bitcoin went to zeroBitcoin to zero
gone on day one
gone as you go
Bitcoin retained at term₿ retained

Maximum lossThis seat carries risk, but it is capped: the most you can ever lose is Capped: the most you can ever lose is , accrued over the schedule — never all on day one, with no margin calls and no liquidation. — accrued over the schedule; no margin calls, no liquidation.

Risks & disclosures

01

Nothing here is an offer

Every figure is illustrative modelling. No security, interest or investment is offered, solicited or sold on this page, and nothing binds any party. Any participation follows diligence, licensed counterparties and executed documents. The calculator may contain errors and ignores fees, costs and taxes except where stated.

02

Who this is for

Sophisticated, professional or accredited investors only, able to bear the loss of their whole commitment. It is not a consumer product and is not directed at anyone in a jurisdiction where it would be unlawful.

03

Your commitment is a schedule

The seat is a fixed schedule of payments for the term. They are a cost, not a deposit: they carry a borrower’s financing and compensation. The schedule is what the borrower’s protection stands on, so stopping payments into a falling market is not an exit; the consequences of a missed payment are documented per deal.

04

Bitcoin can go to zero

If it does, the whole schedule is lost. That loss is capped at the schedule and accrues over the term — never all on day one — and there are no margin calls, no forced liquidation and no further calls beyond it. But it is the whole schedule.

05

The ceiling is real

Upside above a structural ceiling is sold, and the proceeds fund the protection that assures the financing is always repaid. In strong markets the seat will underperform simply holding Bitcoin, and measured in coins it shrinks above the ceiling. Ceiling levels are model estimates, confirmed against live market pricing before any terms.

06

Growth is your assumption, not our forecast

The dial is yours. Below the growth needed to be whole the seat loses money. Bitcoin is volatile, past growth is no guide, and the page shows smooth paths that no real market follows.

07

Structure and counterparties

The position sits inside a commercial real-estate borrower’s financing arranged by Twenty1 Ventures. Custody, lending, brokerage and derivatives sit with licensed third parties; outcomes depend on those parties performing, on borrower headroom being available to match a ticket, and on the protection being executable at size. Twenty1 Ventures acts as an arranger — not a lender, adviser, fiduciary or custodian.

08

Term, exit and transfer

The seat ends at term and nothing renews. It is designed to be transferable, but no established market exists yet; an early exit, where available, may carry costs. Transfer and early-settlement mechanics are documented per deal.

09

Advice, your information, and fuller terms

Take independent legal, tax and financial advice; tax treatment is uncertain and depends on your circumstances. We use what you send only to respond and to assess the seat, and share it only where needed to evaluate or execute. The calculator runs in your browser and sends nothing until you submit the form. Complete terms accompany any proposal and govern over this summary. Provided in confidence.

LAST UPDATED 31 AUGUST 2026

Talk to us
about this seat

Send us the seat exactly as you have it configured and we will come back with an indicative view. Nothing here is an offer.

Seat as configuredEdit →