The three trading methods of spot, leverage, and contract in cryptocurrency trading for #中心化与去中心化交易所 have essential differences in asset ownership, source of leverage, settlement mechanism, and risk structure.

1. Spot Trading

- Core Logic: Instant buying and selling of actual assets

- Leverage and Risk:

- Leverage Ratio: 1x (no leverage)

- Maximum Loss: Principal goes to zero (when the currency price drops to 0)

- Typical Scenario:

> Buy 0.025 BTC with 1000 USDT, if BTC rises to 45,000 USDT, profit is 125 USDT (25% increase).

2. Margin Trading

- Core Logic: Using spot collateral to borrow and amplify principal

- Leverage and Risk:

- Leverage Ratio: 2-100x (platform-set limit)

- Liquidation Mechanism: Automatic liquidation is triggered when the value of collateral assets ≤ borrowed principal + interest.

- Maximum Loss: May exceed principal (liquidation risk is low, but the borrowing gap needs to be covered).

- Case:

> Collateralize 0.01 BTC (worth 400 USDT) to borrow 800 USDT, total funds 1200 USDT to buy BTC.

> If BTC rises by 25%, profit is 300 USDT (75% return); if it drops by 20%, loss is 240 USDT triggering liquidation.