Perpetual futures are the most mainstream contract product in cryptocurrency markets, and typically the first type of contract most traders encounter. Their defining feature is no expiration date — you can hold a position indefinitely. This article provides a comprehensive overview of perpetual futures mechanics and trading essentials. Start at Binance and download the Binance App. iOS users can refer to the iOS installation guide.
Basic Concept
Perpetual futures are a special type of crypto derivative that simulates spot trading while providing leverage and short-selling capabilities. Unlike traditional futures, perpetual contracts have no expiration or settlement date.
Perpetual futures were first introduced by BitMEX in 2016 and have since been widely adopted by Binance, OKX, Bybit, and other major exchanges.
How Do They Work?
Price Anchoring Mechanism
Perpetual contracts use a funding rate mechanism to keep contract prices aligned with spot prices. When the contract price is above spot, longs pay shorts, encouraging shorting to bring the price down.
Mark Price
Exchanges use a mark price rather than the last trade price to calculate liquidation. The mark price incorporates spot prices from multiple exchanges to prevent manipulation.
Funding Rate
Settled every 8 hours between longs and shorts. The funding rate's sign depends on the relationship between contract and spot prices. This is a unique mechanism of perpetual contracts and a key component of holding costs.
Types of Perpetual Contracts
USDT-Margined
Uses USDT as collateral and settlement currency. P&L calculated in USDT — simple and intuitive. Most commonly used type.
Coin-Margined
Uses the underlying crypto as collateral. BTC perpetuals use BTC as margin, ETH perpetuals use ETH. In bull markets, collateral value increases alongside profits.
Advantages
- No expiration: Hold freely without worrying about forced settlement
- High liquidity: Highest volume derivative product with tight spreads
- Flexible leverage: Adjust leverage as needed
- Two-way trading: Profit in both rising and falling markets
- Simple to use: Similar experience to spot trading
Risks
Funding Rate Accumulation
Long-term positions accumulate funding rate costs. In extreme markets, rates can be very high.
High Leverage Risk
While 125x leverage is available, small price movements can cause liquidation. Rarely use more than 20x.
Market Volatility
Crypto markets trade 24/7 with no circuit breakers. Extreme moves can happen at any time.
FAQ
Can I hold perpetual futures indefinitely?
In theory, yes — as long as your margin is sufficient to avoid liquidation. But watch for cumulative funding costs.
How do perpetual futures differ from leveraged spot?
Perpetual futures are derivatives (no actual asset ownership); leveraged spot is margin trading (you hold the asset). Perpetuals support higher leverage but have funding rates.
Which exchange is best for perpetual futures?
Binance, OKX, and Bybit are the top three by volume with good liquidity and mature products.
Safety Tips
- Perpetual futures are high-risk products — start with small amounts and low leverage
- Always set stop-losses after opening positions
- Use the Binance App for trading and regularly check positions and liquidation prices
- Monitor funding rate collection times
- Diversify — don't put all funds into perpetual futures