Key Takeaways
- Perpetual futures provide exposure to crypto price movements without a scheduled expiration date or ownership of the underlying coin.
- Funding payments help keep perpetual prices aligned with a reference spot market. Positive funding generally means longs pay shorts; negative funding reverses the direction.
- Funding is typically calculated on position notional, not simply on the margin you deposit.
- Leverage increases exposure relative to margin, amplifying both potential gains and losses. Liquidation can occur before your margin reaches zero.
Perpetual futures let traders take long or short exposure without repeatedly rolling an expiring contract. Their flexibility comes with responsibilities: maintaining margin, understanding funding, and managing the possibility of forced closure.
The central question is not just whether the market will rise or fall. It is whether the position can withstand price changes and carrying costs long enough for the trading idea to play out.
Readers learning about derivatives can create a KTX account to review available products and their current specifications before committing funds. Product availability and eligibility vary.
What Are Perpetual Futures in Crypto?
A perpetual future is a derivative designed to track a crypto asset without a scheduled expiration. A long position benefits from rising prices; a short position benefits from falling prices, before costs.
Unlike a spot purchase, opening a perpetual position does not by itself give you the underlying coin. You post collateral to support contractual exposure.
No expiration does not mean unconditional holding. The position remains subject to margin requirements, funding, platform rules, and possible contract suspension or delisting.
This guide uses simplified linear, dollar-denominated examples. Coin-margined and inverse contracts can use different valuation and profit calculations.
Perpetual Futures vs. Spot Trading and Dated Futures
| Feature | Unleveraged spot | Perpetual futures | Dated futures |
|---|---|---|---|
| What you hold | The purchased crypto asset | A derivative position | A derivative position |
| Scheduled expiration | No | No | Yes |
| Margin requirements | No borrowed exposure in ordinary unleveraged spot | Initial and maintenance margin | Initial and maintenance margin |
| Ongoing pricing mechanism | Spot supply and demand | Funding helps anchor the contract to spot | Expiration and settlement anchor the contract |
| Forced liquidation | Not from leverage in ordinary unleveraged spot | Possible when margin becomes insufficient | Possible when margin becomes insufficient |
Perpetuals can support hedging and directional trading, but their carrying costs make them different from simply buying and holding a coin.
How Do Funding Rates Work in Perpetual Futures?
Funding is generally a payment between long and short position holders. It creates an incentive that helps limit persistent differences between the perpetual price and its reference spot market.
Under the usual convention, a positive funding rate means longs pay shorts. A negative rate means shorts pay longs.
The actual rate can incorporate a premium component, an interest component, and contract-specific caps or adjustments. A positive rate does not prove that the next price move will be downward, and negative funding does not guarantee a rebound.
Funding schedules also vary. Some products settle at discrete intervals; others use different accrual or payment arrangements. Check the contract’s settlement rules and whether the displayed rate is estimated or final.
How to Calculate a Perpetual Futures Funding Payment
For a simplified linear contract:
Funding payment magnitude = position notional × absolute funding rate
A $10,000 position with a positive 0.01% rate produces a $1 payment for that funding event. The long pays and the short receives, assuming both are subject to the settlement.
If an otherwise unchanged position encounters three identical events, the total is $3. This is an illustration, not a forecast: rates and position values can change.
With $1,000 of margin supporting that position, a $1 payment equals 0.1% of the initial margin. The funding rate itself is still 0.01%; the larger percentage reflects exposure relative to collateral.
Receiving funding is not risk-free income. Price losses can exceed the payment received.
How Does Leverage Affect Perpetual Futures Profits and Losses?
Leverage describes position exposure relative to supporting margin. At entry, $1,000 of margin supporting $10,000 of exposure represents 10× leverage.
For a simple linear position, approximate price profit or loss equals notional multiplied by the percentage price movement, with the sign reversed for a short.
| Initial margin | Leverage | Position notional | Profit on a 2% favorable move | Loss on a 2% adverse move |
|---|---|---|---|---|
| $1,000 | 2× | $2,000 | $40 | $40 |
| $1,000 | 5× | $5,000 | $100 | $100 |
| $1,000 | 10× | $10,000 | $200 | $200 |
These examples exclude funding, fees, slippage, and liquidation. The higher exposure is what increases the dollar result. Changing a leverage setting while keeping the same position size does not multiply that position’s price profit or loss; it changes required collateral and the margin buffer.
The CFTC’s virtual currency trading advisory explains why leverage can amplify the effects of market volatility.
Why Can a Perpetual Futures Position Be Liquidated?
Initial margin supports opening a position. Maintenance margin is the minimum required to keep it open. When the relevant account or position equity becomes insufficient, liquidation procedures may begin.
Many platforms use a mark price for margin assessment rather than relying solely on the last trade. The exact trigger depends on the contract and risk system.
Do not assume 10× leverage always permits a full 10% adverse move. Maintenance requirements, fees, funding, collateral changes, and margin mode affect the threshold.
Isolated margin generally separates the collateral assigned to a position. Cross margin can draw on shared eligible collateral, linking the risk of multiple positions. A stop order can help manage exposure, but cannot guarantee execution at the chosen price during fast markets.
What Should You Check Before Opening a Perpetual Position?
Confirm the contract type, settlement asset, position size, margin mode, funding schedule, and estimated liquidation level.
For a practical reference, open the BTC/USDT perpetual futures market on KTX and review the current contract information and order preview before placing a trade.
Then calculate a plausible adverse move in dollars. Include trading fees, possible funding payments, and execution costs rather than considering price profit alone.
If the possible loss exceeds your planned risk, reducing position size changes the exposure directly. Adding collateral may increase the buffer, but also places more money at risk.
For a closer explanation of forced closure, read KTX’s guide to liquidation, margin, and leverage. Understanding the mechanics should come before choosing a leverage multiple.
Frequently Asked Questions About Perpetual Futures
Do perpetual futures expire?
They have no scheduled expiration, but margin requirements and product rules still apply. Positions can be liquidated or closed under the contract’s terms.
Who pays a positive funding rate?
Under the usual convention, longs pay shorts. Negative funding reverses the payment direction.
Is funding charged on margin or position size?
It is typically based on position notional. The contract determines the valuation method, settlement asset, and payment timing.
Can I lose money while receiving funding?
Yes. Adverse price movements and trading costs can exceed funding receipts.
Does lower leverage guarantee safety?
No. Lower exposure relative to collateral provides a larger buffer in comparable conditions, but market losses and other risks remain.
Risk Disclaimer
This article is for informational and educational purposes only and is not investment advice. Leveraged derivatives can cause rapid and substantial losses. Examples are hypothetical and exclude costs where stated. Funding, margin, and liquidation rules vary by contract and may change. Review current specifications and your ability to bear losses before trading.