What Are Perpetual Futures Contracts

Definition of Perpetual Futures

A Perpetual Futures Contract is the most popular derivatives trading product in the cryptocurrency market. Unlike traditional futures contracts that have a fixed expiration and delivery date, perpetual contracts have no expiry. Traders can hold positions indefinitely. This flexibility is a key reason why perpetual contracts have become the dominant contract type in crypto markets.

Perpetual vs. Traditional Futures

Traditional Futures

Traditional futures contracts (such as Binance's delivery contracts) have a clear expiration date and must be delivered or closed before expiry. For example, "BTCUSDT 0329" refers to a BTC contract expiring on March 29.

Perpetual Contracts

Perpetual contracts have no expiration date. As long as your margin is sufficient, you can hold your position indefinitely. This means:

No need to worry about forced closure at contract expiry
No need to "roll over" positions before expiration
Trading experience is closer to spot trading, but with leverage

How Perpetual Contracts Stay Anchored to Spot Price

Since perpetual contracts lack an expiration delivery mechanism, how does their price stay aligned with the spot price? The answer is the funding rate mechanism.

Funding Rate

The funding rate is one of the most critical mechanisms in perpetual contracts. It settles every 8 hours (UTC 00:00, 08:00, 16:00), transferring funds between longs and shorts:

When the funding rate is positive: Longs pay shorts. This typically occurs when the contract price is above spot, incentivizing more shorts and bringing the contract price down
When the funding rate is negative: Shorts pay longs. This typically occurs when the contract price is below spot, incentivizing more longs and pushing the contract price up

Through this mechanism, the perpetual contract price always fluctuates around the spot price without significant deviation.

Types of Binance Perpetual Contracts

USDT-Margined Perpetual (USDT-M)

USDT is used as margin and settlement currency
P&L calculated in USDT — intuitive and easy to understand
The most popular contract type
Example: BTCUSDT Perpetual

Coin-Margined Perpetual (COIN-M)

The corresponding cryptocurrency is used as margin
For example, BTC coin-margined contracts require BTC as margin
P&L calculated in the corresponding cryptocurrency
Suitable for users who hold a specific cryptocurrency long-term

Key Features of Perpetual Contracts

Leverage Trading

Binance perpetual contracts support 1x to 125x leverage (the maximum varies by trading pair). Leverage lets you seek large profits with small capital, but risks are proportionally amplified.

Bidirectional Trading

You can go long or short, providing profit opportunities in both bull and bear markets.

High Liquidity

Binance's perpetual contract trading volume is a global leader. Major trading pairs have excellent liquidity, with minimal slippage even on large trades.

Mark Price Mechanism

To prevent market manipulation from causing unfair liquidations, Binance uses the "mark price" rather than the last traded price to calculate P&L and trigger liquidation. The mark price is a fair price calculated from multiple exchanges.

How to Trade Perpetual Contracts on Binance

Register a Binance account and complete identity verification
Download the Binance App
Enable futures trading by passing the knowledge quiz
Transfer USDT from your spot account to your futures account
Go to the futures trading interface and select a perpetual contract pair
Set leverage and margin mode
Choose long or short, enter the amount, and place your order

Costs of Perpetual Contracts

Trading fees: Charged once each for opening and closing — Maker 0.02%, Taker 0.05%
Funding rate: Settles every 8 hours at a variable rate (can be positive or negative)
Spread cost: The difference between bid and ask prices

Important Considerations When Holding Perpetual Contracts

Monitor the funding rate: During extended holdings, the funding rate becomes a significant cost. Consecutive funding rate payments can accumulate to substantial amounts
Watch your margin ratio: Ensure margin is sufficient to avoid liquidation from price fluctuations
Not the same as holding spot: Perpetual contract positions don't represent actual cryptocurrency ownership — don't treat contracts like spot holdings for "accumulating coins"

Suitable Trading Strategies

Trend trading: Go with the flow — long in uptrends, short in downtrends
Short-term trading: Capitalize on intraday volatility with quick entries and exits
Arbitrage trading: Exploit price differences between perpetual contracts and spot
Hedging: Pair spot holdings with contract shorts to hedge against downside risk

Risk Warning

Perpetual contract trading is extremely risky. Leverage amplifies P&L fluctuations, and liquidation can result in total loss of principal. Funding rates can become abnormally high during extreme market conditions. Beginners should start with low leverage, strictly control position sizes, set stop losses, and fully understand all perpetual contract mechanisms before trading.