#交易流动性 System**
#(1) Contract Type**
- **Perpetual Contract** No expiration date, anchored to spot prices through the Funding Rate mechanism, suitable for long-term holding.
-*Delivery Contract* has a fixed settlement date, suitable for short-term arbitrage or hedging.
- **Forward Contract (USDT Denominated)** priced in USDT, suitable for multi-currency trading.
- **Inverse Contract (Coin Denominated)** priced in BTC/ETH, suitable for investors holding specific cryptocurrencies for the long term.