Perpetual Futures Explained

A perpetual future (often shortened to "perp") is a type of derivative contract that lets traders bet on the future price of a crypto asset without ever owning it, and unlike traditional futures, it has no expiry date. Perps are the most heavily traded product in crypto, and they are almost always used with leverage, which makes them extremely risky.

Futures, briefly

A traditional futures contract is an agreement to buy or sell an asset at a set price on a set future date. When that date arrives, the contract settles and ends. Perpetual futures strip out the expiry date entirely: the contract simply continues indefinitely, which is where the name comes from. You can hold a position for minutes or months.

Because there is no settlement date to pull the contract's price toward the real market price, perps need another mechanism to stay anchored to the actual, or spot, price of the asset. That mechanism is the funding rate.

The funding rate

The funding rate is a small recurring payment exchanged directly between traders on opposite sides of the market, usually every eight hours. It is the clever part of the design:

• When the perp trades above spot (lots of traders are long and optimistic), longs pay shorts. This makes holding a long position cost money, discouraging it and nudging the price back down.
• When the perp trades below spot (crowd is short), shorts pay longs, nudging the price back up.

This constant push keeps the perpetual's price tethered close to the real market price without any expiry. The exchange itself typically does not collect the funding, it flows between traders.

Margin, leverage, and liquidation

Perps are traded on margin: you deposit collateral and the exchange lets you control a much larger position. Common platforms offer leverage of 10x, 20x, even 100x. As explained in the guide on leverage trading, this magnifies both gains and losses.

The critical danger is liquidation. If the price moves against your position enough to threaten the borrowed funds, the exchange force-closes the trade and you lose your margin. At high leverage, a price move of just 1 to 2% can trigger this. Crypto's volatility means such moves happen constantly, sometimes within seconds during a spike.

Why perps dominate and why that matters

Perpetual futures are popular because they offer continuous exposure, high leverage, and the ability to profit from falling prices by going short, all without owning the underlying coin or dealing with a wallet full of actual assets. Huge trading volume flows through them.

But that same design concentrates risk. Because so many positions are leveraged, a sharp price move can set off a liquidation cascade: forced closures push the price further, triggering yet more liquidations. This is a documented cause of the sudden, violent wicks seen on crypto charts. Retail traders on the wrong side of these events can be wiped out in moments.

Exchanges publicly report that most retail accounts trading these leveraged products lose money over time, a consistent pattern driven by the unforgiving math, funding costs, and liquidation risk described above.

The bottom line

A perpetual future is an expiry-free derivative that tracks an asset's spot price through a funding-rate mechanism paid between traders. It lets people take large, leveraged, long-or-short positions without owning the asset. That flexibility comes with severe risk: recurring funding costs, and liquidation that can erase your entire margin on a small adverse move. Perps are a professional-grade instrument where the majority of retail participants lose money, understanding the mechanism is valuable, using it is where the danger lives.

To study how prices actually behave, try the chart reader, or return to the crypto home page.