XBTUSDTM is the BTC-USDT perpetual swap mini contract. This contract has no expiry date, and is worth 0.001 BTC per contract.
*The interval time of funding settlement may change during periods of high market volatility. See relative announcements for details.

| Keyword | Description |
|---|---|
Contract Name | XBTUSDTM |
Type | Settled in USDT, quoted in USDT |
Expiry Date | Perpetual |
Contract Size | 1 contract = 0.001 BTC |
Tick Size | 0.1 USDT |
Max Order Price | 1,000,000.0 USDT |
Max Limit Order Size | 1,000,000contract |
Max Market Order Size | 1,000,000contract |
Min Order Size | 1contract |
Price Protection Limit | 5.00% |
Initial Margin Rate | 1/Leverage |
Maintenance Margin Rate | 0.40% |
Risk Limit | 250,000.00000000 USDT |
Risk Limit Tick Size | 125,000.00000000 USDT |
Fee Rates | Maker: 0.0200% / Taker: 0.0600% More details |
Open Interest | 28.48Mcontract |
Funding Interval | Every 8h |
Funding Rate | -0.0015% |
Next Funding | 03/30/2026 08:00:00 |
Base Currency Rate | 8 Hour: .XBTINT8H; 1 Min: .XBTINT |
Quote Currency Rate | 8h: .USDTINT8H / 1m: .USDTINT |
Premium Index | 8 Hour: .XBTUSDTMPI8H; 1 Min: .XBTUSDTMPI |
Mark Price Method | Fair Price |