Perpetual Futures Explained: Funding, Leverage, and Liquidation
Perpetual futures (“perps”) are crypto derivatives that let you trade an asset’s price with leverage and no expiry date. A recurring funding payment keeps the contract price tethered to the spot price, so you can hold a long or short position indefinitely as long as your margin covers losses. This guide explains funding, leverage, liquidation, and risk management in plain English.
What are perpetual futures?
Perpetual futures are contracts that track the price of an underlying asset, such as Bitcoin, without a settlement or expiry date. Unlike traditional futures, you never roll over to a new contract. Instead, a periodic funding rate exchanged between longs and shorts nudges the contract price toward the spot market price.
Key traits of perps:
- No expiry: hold a position for minutes or months.
- Leverage: control a larger position with a smaller margin deposit.
- Two directions: profit from rising prices (long) or falling prices (short).
- Margin-based: your collateral backs the position, and losses draw it down.
Because they combine leverage with continuous trading, perps are popular for both speculation and hedging. They are also higher risk than spot trading, which we cover below.
How does the funding rate work?
The funding rate is a small periodic payment exchanged directly between long and short traders, not a fee paid to the exchange. It keeps the perpetual price anchored to spot. When perps trade above spot, longs pay shorts; when they trade below spot, shorts pay longs.
Funding is typically settled at set intervals (often every eight hours, though this varies by venue). The amount you pay or receive depends on the funding rate and your position size.
| Market condition | Funding rate | Who pays whom |
|---|---|---|
| Perp price above spot | Positive | Longs pay shorts |
| Perp price below spot | Negative | Shorts pay longs |
| Perp aligned with spot | Near zero | Minimal transfer |
Practical takeaway: if you hold a leveraged position through many funding intervals, funding can meaningfully add to or subtract from your returns. Always check the current rate before holding overnight.
What is leverage, and why does it amplify risk?
Leverage lets you open a position larger than your deposited margin. With 10x leverage, $1,000 of margin controls a $10,000 position. That magnifies both gains and losses: a 5% move in your favor becomes roughly 50% on your margin, but a 5% move against you erases about half of it.
Leverage does not create free money. It compresses the price distance between profit and total loss. Higher leverage means:
- A smaller adverse move wipes out your margin.
- Your liquidation price sits closer to your entry.
- Funding and fees weigh more heavily relative to margin.
Beginners often benefit from using low leverage, or none at all, until they understand how position sizing interacts with volatility. If you are new to systematic approaches, our overview of algorithmic trading explains how rules can enforce disciplined sizing.
What is liquidation, and how is the liquidation price set?
Liquidation happens when your position’s losses reduce your margin below the maintenance requirement. The exchange then force-closes the position to prevent your balance from going negative. The price at which this triggers is your liquidation price, and it depends on entry price, leverage, and margin type.
Higher leverage pushes the liquidation price closer to your entry, leaving less room for normal volatility. Two common margin models affect this:
- Isolated margin: only the margin assigned to that position is at risk. Liquidation affects one position.
- Cross margin: your whole account balance backs the position, which can delay liquidation but risks more capital.
Avoiding liquidation is largely about sizing and stops. A protective stop loss can close a losing trade at a threshold you choose, ideally before the position reaches its liquidation price.
Long vs short: how do the two directions differ?
Going long means you profit when the price rises; going short means you profit when the price falls. Perps make shorting straightforward because you never need to borrow the underlying asset. Your profit or loss is the price difference multiplied by position size, adjusted for funding and fees.
| Aspect | Long position | Short position |
|---|---|---|
| Profits when | Price rises | Price falls |
| Loss when | Price falls | Price rises |
| Funding (perp above spot) | You pay | You receive |
| Funding (perp below spot) | You receive | You pay |
Both directions carry the same structural risk: leverage can liquidate a position quickly if the market moves against you. Neither long nor short is inherently safer.
How do you manage risk on perpetual futures?
Risk management on perps starts with position sizing, defined exit rules, and protective orders placed before you enter. The goal is to cap the loss on any single trade so no one position can seriously damage your account. Stop losses and take profits automate those exits.
Practical risk controls:
- Size for the worst case: decide the maximum you can lose per trade first, then set leverage accordingly.
- Use stop orders: a stop market or stop limit order closes a position when price crosses your threshold. Remember a trigger is a threshold, not a guaranteed fill; market fills execute against available liquidity and can differ from the trigger.
- Lock in gains: take profit and trailing stop orders help you exit winners methodically.
- Reduce Only: mark closing orders Reduce Only so they only reduce or close a position, never accidentally flip it.
- Test before you trade: backtest a strategy and review metrics like Sharpe ratio and maximum drawdown before risking capital.
A quick, honest risk note: trading perpetual futures involves a real risk of loss, leverage amplifies that risk, and backtested results do not guarantee future performance.
How can Hey-Traders help you trade perps systematically?
Hey-Traders is a natural-language quant platform that turns a plain-English strategy into executable, backtestable code, then generates live signals and can execute on connected venues once you enable trading permissions. You describe your rules in words, and the AI handles the code.
For perpetual futures, that means you can express ideas like entry conditions, leverage limits, stop losses, and take profits without programming. Hey-Traders supports order types including market, limit, stop market, stop limit, take profit market, take profit limit, trailing stop, OCO, grid, TWAP, VWAP, and conditional orders. Supported and connected venues include major crypto exchanges and prediction markets such as Binance, Bybit, OKX, and Hyperliquid, always subject to venue support and your permissions.
If you want the mechanics without writing code, see our guide to no-code trading bots or read how natural-language trading works end to end.
Frequently Asked Questions
What is the difference between perpetual futures and regular futures?
Perpetual futures have no expiry or settlement date, so you never roll contracts. A periodic funding rate keeps their price close to spot, whereas traditional futures settle on a fixed date.
Do I pay the funding rate to the exchange?
No. Funding is exchanged directly between long and short traders. Depending on market conditions, you either pay or receive it at set intervals, and it is separate from trading fees.
Can a stop loss prevent liquidation?
A stop loss can help by closing a position at a threshold you set, ideally before it reaches the liquidation price. However, a stop trigger is a threshold, not a guaranteed fill, and fast markets can execute at a different price.
Is high leverage a good idea for beginners?
Generally no. Higher leverage moves your liquidation price closer to your entry, so a small adverse move can wipe out your margin. Many beginners start with low or no leverage while learning position sizing.
What happens if I hold a perp position for a long time?
You can hold indefinitely as long as your margin covers losses, but you will pay or receive funding at each interval. Over many intervals, funding can noticeably affect your total return.
Try Hey-Traders
If you want to explore perpetual futures strategies without writing code, Hey-Traders lets you describe your rules in plain English, backtest them with professional metrics, and, when you are ready, connect a supported venue to run them. Start by testing an idea, review the numbers honestly, and trade only what you understand.