What Are Crypto Perpetual Contracts
In crypto trading, perpetual contracts (often called perps) are a type of derivative with no expiration date. This means traders can hold long or short positions indefinitely on an underlying asset (e.g., Bitcoin, Ethereum) without needing to settle at a fixed time.Core Mechanisms
Funding Rate
To keep perpetual prices aligned with spot prices, platforms apply periodic funding payments.
If perp price > spot → longs pay shorts
If perp price < spot → shorts pay longs
Leverage
Perpetuals allow leverage (e.g., 10×, 20×, or higher), enabling traders to control larger positions with less capital.
Risk & Liquidation
Due to leverage, market volatility can reduce margin below required levels, triggering forced liquidation. Additionally, unfavorable funding rates can increase holding costs over time.
Example
Suppose you believe Bitcoin will rise and open a 10× leveraged long position:
Margin: $1,000
Position size: $10,000
If BTC rises 5% → profit = 5% × 10 = 50% ($500)
If BTC falls 5% → loss = $500
If funding rate is positive (longs pay shorts), you must also pay periodic funding fees.
This mechanism ensures perpetual prices stay close to spot markets.
Perpetual contracts have become a dominant trading instrument in crypto due to:
Flexible holding (no expiry)
Ability to go long or short
Leverage for amplified returns
Well-suited for 24/7, high-volatility markets
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