Perpetual futures · isolated margin · settled on-chain
Hold the position.
Never roll the contract.
Ballast clears perpetual futures on eight markets — crypto, metals, energy, equities and FX — with isolated margin per position, a 0.50% maintenance floor, and funding exchanged every eight hours. The terminal below is running: paper collateral, real clearing maths.
Chart, book and ticket
Take a position and watch the margin move
Every figure here comes from the same clearing engine: entry averaging, pro-rata funding, and a liquidation price solved from your margin — not an approximation.
No positions. Set a size and leverage above, then buy or sell — the liquidation price, margin ratio and accrued funding appear here and update every tick.
| Market | Side | Size | Entry | Mark | Liquidation | Margin ratio | Funding | Unrealised | Action |
|---|
Listed perpetuals
Eight books, one collateral pool
Collateral is posted once in USDC and allocated per position. Select any row to load it into the terminal.
| Market | Mark | 24h | Funding / 8h | Open interest | 24h volume | Trend |
|---|
Venue totals: — open interest across — of 24-hour volume.
What the contract actually does
A perpetual has no expiry, so funding does the work
With no settlement date to pull the contract back to spot, the two sides pay each other instead. These are the exact expressions the terminal evaluates.
Longs and shorts pay each other
When the perpetual trades above the index, the rate turns positive and longs pay shorts — which pushes the price back toward spot. Ballast exchanges funding every eight hours and accrues it continuously in between, so closing early still settles what you owe.
Isolated, per position
Each position carries its own margin. Adding to a position averages the entry and adds margin; a loss on one market can never reach into another, and only the margin backing that position is ever at risk.
Solved, not estimated
The liquidation price is the price at which the margin ratio reaches the 0.50% maintenance floor — solved directly from your entry, size and margin. At 50× that is roughly 1.5% of adverse movement; at 2× it is nearly half.
Open interest across all eight books, marked continuously.
Notional traded in the last 24 hours.
Listed perpetuals, one shared collateral pool.
Matching-engine availability, trailing 90 days.
Open source
Take the engine and build on it
The clearing engine, the terminal and this page are released under the MIT licence: use it commercially, fork it, relicense your fork. The only condition is that the notice below travels with the copies you distribute.
- Commercial use — ship it in a product, no royalty.
- Modify and redistribute — including as closed source.
- Keep the notice — copyright line and permission text stay.
- No warranty — it is provided as is, which matters for anything touching money.