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Stormbit
Stormbit Borrow interface: loans against BTC or ETH with collateral, principal and terms

Borrow · for holders

Post BTC or ETH, borrow USDC, settle at the option expiry you choose. Your upside is capped at the call strike until settlement. That cap, not interest, is what you pay.

The story behind 0%

When your loan is created, a call option is sold on your collateral. Someone in the options market pays cash for the right to your upside above the cap.

You're not getting a free loan. You're selling your tail upside for one, and the price is quoted before you sign.

No liquidation

The floor under your loan is a put option, bought and paid for at origination. If your collateral crashes, the put pays the difference. No bot, no margin call, no 3am price-wick closure.

Once funded, the position structurally cannot be force-closed. It rides to the expiry you picked.

  1. Collateral

    WBTC or WETH, over-collateralized

  2. Rate

    from 0%, paid in capped upside

  3. Term

    any listed option expiry, days to months

  4. Downside

    covered by the put. Not your problem.

  5. Upside

    yours up to the cap. Above it, the desk's.

  6. Default

    walk away, collateral goes to auction, no debt follows

Feel the trade-off

Your quote

Drag to size the loan against 1 BTC.

Loan-to-value50%

Lower LTV → cap sits higher → you keep more upside.

Term30 days

Shorter terms put the cap closer to spot, but it resets sooner.

You borrow / 1 BTC
$32,500 USDC
Cash interest
0%
Upside cap
spot +19%
The collarillustrative
floorspotcap

Real quotes price off live implied volatility at trade entry.

Decide

If you believe in moderate upside, a 0% loan with no liquidation is hard to beat. If you're expecting a 5x, keep your coins.