What Is a Perpetual Contract in Crypto Trading
Last Updated: September 15, 2026
A perpetual contract is a derivative that lets you speculate on the price of Bitcoin, Ethereum, or other cryptocurrencies without owning the underlying asset. Unlike traditional futures contracts, perpetual contracts have no expiration date, so you can hold a position for as long as you want — provided you manage your margin and cover funding rates. These contracts use leverage, meaning you control a large position with a relatively small amount of capital. That leverage can magnify gains, but it also increases the risk of liquidation if the market moves against you. Perpetual contracts have become the dominant trading instrument on crypto exchanges, accounting for the majority of derivatives volume. They're popular because they offer 24/7 trading, deep liquidity, and the ability to profit in both rising and falling markets. If you want to understand how perpetual contracts work before placing your first trade, explore leverage trading strategies or review margin requirements on EVEDEX. By the end of this guide, you'll know how funding rates keep prices anchored, what triggers liquidation, and how to size positions without overleveraging.
Perpetual vs Traditional Futures
| Feature | Perpetual | Futures | Spot |
|---|---|---|---|
| Expiration | None — hold indefinitely as long as margin is sufficient and funding is paid | Fixed expiry date (weekly, monthly, quarterly) — position settles at expiration | None — you own the asset outright with no time constraint |
| Funding | Periodic funding rate every 8 hours to align contract price with spot | No funding — basis (price difference) converges naturally at settlement | No funding — you pay only the purchase price and any fees |
| Leverage | Up to 125× on many exchanges, amplifying both gains and liquidation risk | Typically lower (5–20×), depending on the exchange and contract specifications | None — you trade with the full capital required to buy the asset |
How Perpetual Contracts Track Spot Prices
Perpetual contracts stay close to the spot market through a mechanism called the funding rate. Every eight hours, traders with long positions pay shorts (or vice versa) depending on whether the perpetual price is trading above or below the spot price. When the contract trades at a premium, longs pay shorts, incentivizing arbitrageurs to sell the perpetual and buy spot, which pushes the contract price down. When the contract trades at a discount, shorts pay longs, encouraging traders to close shorts or open longs, lifting the perpetual price back toward spot. This continuous adjustment prevents the kind of divergence you see in traditional futures, where basis can widen significantly before expiration. Funding rates are small — often between –0.01% and +0.01% per interval — but they compound if you hold a position for days or weeks. You can read more about funding rate mechanics on Binance's official documentation.
Six Factors That Drive Perpetual Contract Risk
Before you open a leveraged position, understand the variables that determine whether you profit or get liquidated.
- Leverage ratio Using 10× leverage means a 10% adverse move wipes out your margin; 100× leverage leaves almost no room for volatility.
- Maintenance margin Exchanges require a minimum margin balance to keep your position open; fall below it and you're liquidated automatically.
- Funding rate direction If you're long and funding is consistently positive, you pay shorts every eight hours, eroding your position over time.
- Liquidation price This is the exact price at which your position is closed; it's calculated from your entry, leverage, and remaining margin.
- Order book depth Thin liquidity can cause slippage during liquidation, meaning you lose slightly more than your margin in extreme moves.
- Volatility spikes Sudden price swings — common in crypto — can trigger cascading liquidations, pushing the market even further against you.
Traders often underestimate funding costs on longer holds. If you're planning to keep a position open for weeks, check the historical funding rate for that pair. A rate that averages +0.01% per interval costs you roughly 1% per month on your position size, which adds up. You can see real-time funding rates on most exchange dashboards or track them on CoinGlass.
Liquidation doesn't always happen at the exact theoretical price. During flash crashes or exchange outages, the liquidation engine may execute your close at a worse price than calculated, leaving you with a small negative balance (though most exchanges have insurance funds to cover this). Always use stop-loss orders as a secondary defense and never commit your entire account balance to a single leveraged position.
Trading Perpetual Contracts on EVEDEX
EVEDEX is a hybrid crypto derivatives exchange — off-chain matching, on-chain settlement on Arbitrum — built for traders who want transparent margin calculations and access to 52 perpetual contracts across crypto majors, altcoins, stocks, forex and commodities. The platform supports leverage up to 200× on BTC-USD, ETH-USD and SOL-USD for positions up to $50,000 notional, 100× on XRP, oil, silver and gold, and lower caps on other pairs, with maintenance margin set per pair and position size. A margin call fires at 80% margin utilisation, and liquidation is measured against the mark price. EVEDEX runs cross margin only: your entire futures balance backs every position, giving you more flexibility but higher account-wide risk; isolated margin, which limits risk to the funds allocated to a single position, is planned but not yet live. You can compare isolated vs cross-margin setups to understand the trade-off. The exchange charges 0.015% maker and 0.045% taker fees, with cashback of up to 35% on your own trades, and funding is computed every eight hours and settled hourly at one eighth of the rate. Perpetual futures carry a high risk of loss.
