What Is a Perpetual Swap?
A perpetual swap (also called a "perp" or "perpetual contract") is a type of crypto derivative that lets you speculate on price movements with leverage — without an expiration date. Unlike traditional futures that expire on a set date, perps run forever. You hold them as long as you want and close whenever you choose.
Invented by BitMEX in 2016, perpetual swaps now dominate crypto derivatives trading. On major exchanges like Bybit and Binance, daily perps volume routinely exceeds $30–50 billion — far more than spot markets.
No Expiry Date
Hold forever, close anytime
Up to 100x Leverage
Amplify gains (and losses)
Long & Short
Profit in any market direction
Plain English Definition
Think of a perpetual swap as a bet on where BTC price goes — you go "long" if you think it rises, "short" if you think it falls. You can use leverage (e.g., 10x means $1,000 controls $10,000 worth of BTC). There is no expiry, but you pay (or receive) a small fee every 8 hours to keep positions open — this is called the funding rate.
Perpetual Swaps vs Traditional Futures
Both are leveraged instruments, but they behave differently in key ways. Here's the full breakdown:
| Feature | Perpetual Swaps | Traditional Futures |
|---|---|---|
| Expiry Date | None — hold forever | Fixed date (e.g., Mar 28) |
| Price vs Spot | Stays close via funding rate | Can diverge until expiry |
| Settlement | Continuous / on close | On expiry date |
| Funding Fees | Every 8 hours | None |
| Liquidity | Very high (most traded) | Lower, varies by contract |
| Complexity | Simpler to manage | Need to roll contracts |
| Best For | Active traders, swing trades | Hedging, institutional |
Ron's Take
For active crypto trading, perps are almost always better than quarterly futures — more liquidity, easier position management, and the funding rate mechanism keeps prices honest. The only time I use quarterly futures is for hedging longer-term positions where I don't want funding rate risk.
How the Funding Rate Works
The funding rate is the key mechanism that keeps perpetual swap prices pegged close to Bitcoin's real spot price. Without it, perps would drift far from reality. Here's exactly how it works:
Market moves away from spot price
If too many traders are long (bullish), perp price rises above spot. This creates demand imbalance.
Funding rate turns positive
When perp price > spot price, funding rate goes positive. Longs pay shorts every 8 hours.
Price is pulled back toward spot
The payment from longs to shorts incentivizes more shorts and discourages longs — pushing price back down.
Equilibrium maintained
The cycle keeps perp price within a tight band of spot price. Typical funding rates range from -0.1% to +0.1% per 8h.
Positive Funding (Bullish Market)
- Perp price > Spot price
- Longs pay shorts
- Shorts earn passive income
- Typical: +0.01% to +0.05% per 8h
Negative Funding (Bearish Market)
- Perp price < Spot price
- Shorts pay longs
- Longs earn passive income
- Common during bear markets
How to Trade Perpetual Swaps (Step-by-Step)
Here's the complete process from opening an account to executing your first perp trade on Bybit:
Open an account on Bybit or Binance
Bybit is the best choice for beginners: clean UI, lower fees, better liquidation engine. Verification takes ~5 minutes.
Open Bybit →Deposit USDT to your derivatives account
Transfer USDT from spot wallet to your Derivatives/Unified Trading Account. Most perps on Bybit are USDT-margined — no need for BTC.
Choose your pair and set leverage
Navigate to Derivatives → USDT Perpetual. Select BTC/USDT. Start with 3–5x leverage maximum. Higher leverage = lower liquidation threshold.
Set your Stop Loss BEFORE entering
This is non-negotiable. Know exactly how much you're willing to lose before the trade. Set SL at 1–2% of account per trade.
Enter Long or Short
Long = profit if price rises. Short = profit if price falls. Use Limit orders for maker fee (0.01%) instead of Market orders (0.06%).
Monitor and close your position
Watch your unrealized PnL and funding fee accumulation. Close with a Limit order to save on fees. Funding is charged/paid every 8h at 00:00, 08:00, 16:00 UTC.
Leverage & Risk Management
Leverage is the most dangerous (and exciting) part of perp trading. Understanding liquidation is the most important risk concept for any perpetual swap trader.
| Leverage | Position Size ($1,000) | Liquidation at | Ron's View |
|---|---|---|---|
| 1x | $1,000 | -100% (not liquidated) | Safe, no leverage |
| 3x | $3,000 | ~-33% move | Good for beginners |
| 5x | $5,000 | ~-20% move | Comfortable for active traders |
| 10x | $10,000 | ~-10% move | Experienced traders only |
| 25x | $25,000 | ~-4% move | High risk — 1 bad candle wipes you |
| 100x | $100,000 | ~-1% move | Gambling. Avoid completely. |
The #1 Risk Management Rule
Never risk more than 1–2% of your total account per trade. If you have $5,000, your stop loss should never be more than $50–$100 away from your entry. This means using appropriate leverage — not maximum available leverage.
Read: How to Avoid Liquidation in Crypto Futures →
Complete guide with 7 rules that keep your account alive
Best Exchanges for Perpetual Swaps
- Lowest fees on the market
- Best liquidation engine — partial liquidation
- Clean UI, easy for beginners
- USDT & USDC margined
- Deepest liquidity on BTC/ETH
- Most pairs available
- USDⓈ + COIN margined
- Advanced order types
- Most advanced trading tools
- Unified account — trade all products
- Low fees, multiple margin modes
- Portfolio margin available
Perpetual Swaps: Pros & Cons
Advantages
- No expiry — hold positions indefinitely
- Very high liquidity on major pairs
- Profit in both bull and bear markets
- Leverage up to 100x for capital efficiency
- Low trading fees (0.01–0.06%)
- USDT-margined = no crypto collateral needed
- Advanced order types (TP, SL, trailing stops)
Disadvantages
- Funding fees erode profit on long holds
- Leverage amplifies losses equally
- Liquidation risk if under-collateralized
- Market manipulation possible on smaller pairs
- Requires more active monitoring than spot
- Psychological difficulty — high volatility
- Not available in some countries (US restrictions)
Frequently Asked Questions
Futures contracts have a fixed expiry date — when the date arrives, your position is automatically settled. Perpetual swaps have no expiry. Instead, a funding rate mechanism (paid every 8 hours) keeps the perp price close to the underlying spot price. For most active traders, perps are simpler and more liquid.
Futures & Derivatives Resource Library
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Risk Disclosure & Affiliate Disclosure · Perpetual swap trading with leverage involves significant risk of loss including potential liquidation of your entire margin. Never trade more than you can afford to lose. RonOnCrypto earns affiliate commissions from exchanges linked on this page. See our affiliate disclosure.