In this perp trading guide, you will learn how to trade a perpetual contract crypto product in a practical way. We will cover how crypto perpetuals work, how margin and leverage change risk, how to plan a trade, and how to avoid common mistakes that hurt real traders.
1. How Crypto Perpetual Contracts Work
A <strong>perpetual contract</strong> is a derivative, which means its value is based on another asset, such as Bitcoin or Ethereum. Unlike a normal futures contract, a perpetual contract has <strong>no expiry date</strong>. You can hold it as long as your account has enough margin and the exchange keeps the market open.
In spot trading, you buy or sell the actual crypto asset. In crypto perpetuals trading, you trade a contract that follows the price of the asset. For example, if BTC is trading at 60,000 USDT, a BTC perpetual contract should trade close to that price.
Perpetual contracts allow you to go:
Example:
The opposite is also true. If BTC drops after you open a long, your position loses value.
Because perpetual contracts do not expire, exchanges use a <strong>funding rate</strong> to keep the contract price close to the spot price. The funding rate is a small payment exchanged between long and short traders at set times, often every 8 hours.
In general:
Funding can be small, but it matters if you hold trades for a long time. A trade that looks profitable on price can become less profitable after repeated funding payments.
2. Margin, Leverage, and Liquidation
To trade perpetuals, you must post <strong>margin</strong>, which is collateral used to support your position. If you use USDT-margined perpetuals, your collateral is usually USDT.
<strong>Leverage</strong> means controlling a larger position with a smaller amount of margin. For example, with 10x leverage, 100 USDT can control a 1,000 USDT position.
Example:
Leverage increases both gains and losses. It does not make a trade better. It only makes the result larger.
The biggest risk is <strong>liquidation</strong>. Liquidation happens when your margin falls below the exchange requirement, and the exchange closes your position to prevent further losses. Exchanges often use a <strong>mark price</strong>, which is a fair price estimate based on spot and other market data, to decide liquidation. This helps reduce manipulation from sudden price spikes on one order book.
There are usually two margin modes:
For learning and risk control, isolated margin is often easier to manage. If the trade goes wrong, you know the maximum margin assigned to that position is at risk, though fees and exchange rules still matter.
Practical rule: if you are still learning, use low leverage such as 2x or 3x. High leverage gives the market very little room to move before liquidation.
3. Planning a Perpetual Trade Step by Step
A good trade starts before you click buy or sell. A simple plan should include direction, entry, stop loss, target, position size, and invalidation.
<strong>Entry</strong> is the price where you open the trade. <strong>Stop loss</strong> is the price where you exit if the trade is wrong. <strong>Target</strong> is where you plan to take profit. <strong>Invalidation</strong> means the reason your trade idea is no longer valid.
Example long setup:
Your risk per ETH is 70 USDT, because 3,010 minus 2,940 equals 70. Your reward per ETH is 140 USDT, because 3,150 minus 3,010 equals 140. That is a 1:2 <strong>risk-to-reward ratio</strong>, meaning you risk 1 unit to try to make 2 units.
Before entering, check:
Order types matter too:
<strong>Slippage</strong> means getting a worse price than expected, often during fast markets or low liquidity. To reduce it, use limit orders when possible and avoid oversized positions.
You can practice this process on major exchanges that offer perpetuals. For example, CoinW offers crypto derivatives markets, and traders can review contract details and risk settings before placing an order: https://www.coinw.com/en_US/register?r=3443555
4. Risk Management and Common Mistakes
Risk management is the core skill in crypto perpetuals trading. Your goal is not to win every trade. Your goal is to survive losing streaks and grow over many trades.
A common rule is to risk only <strong>1% or less of your trading account on one trade</strong>. If your account is 1,000 USDT, risking 1% means your planned loss should be about 10 USDT if the stop loss is hit.
Position size example:
This calculation is more important than choosing leverage. Leverage controls how much margin is needed, but position size controls how much money you can lose if your stop is hit.
Common mistakes to avoid:
Also remember trading fees. Perpetual trades often include maker and taker fees. A <strong>maker fee</strong> applies when your limit order adds liquidity to the order book. A <strong>taker fee</strong> applies when your order fills immediately and removes liquidity. Active traders should include fees in their profit and loss calculations.
A simple trading checklist:
If any item is missing, wait. In perpetual contract crypto trading, not taking a bad trade is often as valuable as taking a good one.