What Are Perpetual Futures in Crypto?

By Dana Kovac · Published 2026-09-10 · Independent review — not affiliated with any exchange

Perpetual futures are crypto derivatives contracts that let traders speculate on an asset’s price with leverage but never expire, unlike traditional futures that settle on a fixed date. Instead of a settlement mechanism, perpetuals use a funding rate — a periodic payment between long and short traders — to keep the contract price tethered to the underlying spot price. That single design choice is why perpetual swaps, often just called “perps,” now account for the large majority of crypto derivatives volume on most major exchanges.

If you’ve read about options basics or compared cross margin vs isolated margin elsewhere on this site, perpetuals sit alongside those as one of the three core building blocks of leveraged crypto trading. This piece covers what makes them structurally different from dated futures, how funding actually gets calculated, and the practical risks, fees, liquidation, leverage, that come with trading them.

How Are Perpetual Futures Different From Dated Futures Contracts?

Traditional futures, the kind traded on regulated venues like CME Group, have a fixed expiry. A trader who buys a March contract must close it or roll into a new contract before it settles, and the contract price naturally converges to spot as expiry approaches.

Perpetual futures remove that clock entirely. There’s no settlement date, no rollover, no convergence event. Instead, the exchange applies a funding rate on a fixed schedule (commonly every 8 hours, though some venues use hourly funding) to nudge the contract price back toward the index price whenever the two diverge. This makes perpetuals functionally closer to a leveraged tracking instrument than a classic futures contract, even though margin, leverage, and liquidation mechanics look similar on the surface.

The practical effect: a trader can hold a leveraged long or short on Bitcoin indefinitely, provided they keep enough margin and can absorb funding payments over time. That’s a meaningful behavioral shift from dated futures, where position management around expiry is unavoidable.

How Does the Funding Rate Actually Work?

Funding is paid directly between traders, not to the exchange. When the perpetual contract trades at a premium to spot (more buyers than sellers pushing price up), longs pay shorts. When it trades at a discount, shorts pay longs. The rate itself is usually a function of the price gap between the perpetual and the index, plus an interest rate component.

A few things trip people up here:

• Funding can flip sign multiple times a day during volatile stretches.
• Holding a position through a funding timestamp means you pay or receive regardless of whether you plan to close soon after.
• Extremely high positive funding (often above 0.05% per 8-hour period) usually signals an overheated, crowded long trade, historically a setup that precedes sharp downside liquidation cascades once the trade unwinds.

Our funding rate calculator estimates the cost of holding a leveraged position over a given period, which is worth running before entering any trade you plan to hold longer than a day or two. For a broader definition, see the funding rate glossary entry.

Why Do Perpetual Futures Dominate Crypto Trading Volume?

A few structural reasons. There’s no expiry friction, so market makers and retail traders both concentrate liquidity into a single perpetual contract per asset instead of spreading it across quarterly and monthly expiries. Leverage is typically higher than what’s available in regulated futures markets. And because perpetuals were invented for crypto (BitMEX popularized the modern version around 2016), most exchanges built their entire derivatives stack around this contract type first, with dated futures often an afterthought or absent entirely.

Bitcoin perpetual futures open interest, the total value of outstanding contracts, is one of the more-watched derivatives metrics precisely because it’s concentrated in a handful of venues, unlike dated futures open interest which fragments across expiries. Independent trading education sites like leverage.trading cover the mechanics of margin and leverage in more depth if you want a deeper technical dive outside our exchange-focused coverage.

Perpetual Futures vs Spot Trading: What Actually Changes?

The core trade-off: perpetuals let you express a view with far less capital and can profit from downside moves as easily as upside ones, but they introduce funding costs and liquidation risk that spot trading simply doesn’t have. For a side-by-side of two exchanges that both lean heavily on derivatives volume, our Binance vs BingX comparison breaks down fee structures and leverage caps in practice.

What Do Perpetual Futures Fees and Liquidation Actually Cost You?

Trading fees on perpetuals are usually quoted as maker/taker percentages, separate from funding. As of 2026, taker fees on major exchanges commonly range from roughly 0.02% to 0.06% per trade, according to fee schedules published by the exchanges themselves, with volume-based discount tiers on top. Funding is the variable, ongoing cost that spot trading doesn’t have at all.

Liquidation happens when losses erode your margin below the exchange’s maintenance threshold, at which point the position is force-closed, often with an additional liquidation fee. Higher leverage means a smaller adverse price move triggers this. Before opening a leveraged position, it’s worth running the numbers through a liquidation price calculator and a position size calculator rather than eyeballing it. Our glossary entry on liquidation and leverage cover the underlying formulas if you want the math itself.

For exchanges that specifically advertise deep leverage ceilings, our guide to high-leverage crypto exchanges compares maximum leverage and margin modes across platforms rather than just fee percentages.

Where Can You Trade Perpetual Futures, and Does KYC Matter?

Availability and verification requirements vary by exchange and by region. Some platforms allow trading, and even withdrawals up to a threshold, without full identity verification, a draw for traders who value speed or operate in regions with patchy banking access. Others require full KYC before any derivatives trading. Regulatory posture also differs sharply by country: some jurisdictions cap retail leverage or restrict derivatives access entirely, so checking local rules matters as much as checking the exchange’s own policy.

If you’re evaluating alternatives to a specific platform, our MEXC alternatives roundup and the full exchange rankings table compare fee tiers, leverage limits, and verification requirements across BYDFi, Bitget, Bybit, OKX, and BingX side by side. For anyone starting from zero, the beginner learning path walks through spot trading fundamentals before introducing leverage products like perpetuals.

Perpetual futures aren’t complicated once the funding mechanism clicks, but they punish traders who treat them like spot trading with extra steps. Size positions deliberately, watch funding on trades you hold overnight, and treat high open interest plus extreme funding as a warning sign rather than a signal to pile in.

Dana Kovac — Covers trading tools, bots and market structure. Spent four years on a prop trading desk before going independent.