Inside Perps: The Trading Instrument Now Bigger Than the Rest of Crypto Derivatives Combined

More money changes hands on perpetual futures contracts in a single day than most stock exchanges see in a month. The instrument, known across trading desks simply as “perps,” has quietly become the default way traders bet on Bitcoin’s next move, and the mechanism that makes it work is stranger than most people realize.

A regular futures contract expires. You pick a date, the contract settles, and if you still want exposure you have to buy a new one. That worked fine for oil or wheat, but early crypto exchanges found it clunky: liquidity kept splitting across different expiry dates instead of pooling into one deep, easy-to-trade market.

The Fix Nobody Expected to Work

An exchange founded in 2014 solved the expiry problem in 2016 by removing expiry altogether. Its perpetual swap never settles. Instead, every eight hours, longs and shorts pay each other a small fee called the funding rate. When the contract trades above the real spot price, longs pay shorts, nudging the price back down. When it trades below, shorts pay longs, nudging it back up. No exchange has to step in and fix the price by hand; the traders do it to each other, automatically, forever.

That single mechanic is why perps now account for well over 90% of all crypto derivatives volume, with annual turnover estimated in the tens of trillions of dollars.

Where the Real Price Gets Set

Because so much volume runs through perps, sharp Bitcoin price moves usually start there before spot markets catch up. Traders and algorithms increasingly treat the perpetual price, not the spot price, as the “true” number in the moment. That is a strange inversion for an instrument that was originally designed just to track the spot price as closely as possible.

It also explains why liquidation cascades happen the way they do. Early perpetual exchanges allowed up to 100x leverage, meaning a 1% price swing could wipe out a fully leveraged position in seconds. Waves of forced liquidations during volatile stretches have repeatedly amplified price swings far beyond what spot trading alone would produce. Leverage limits on most major platforms have come down from those extremes since, but the underlying dynamic hasn’t gone away.

Traditional finance has noticed. At least one major derivatives exchange operator has floated the idea of bringing a perpetual-style structure to equities, which would mean an instrument invented to solve a crypto-specific liquidity problem eventually reshaping how stocks trade. Total perpetual futures volume has kept climbing even as the broader crypto market matures, up close to 30% year over year by some estimates, suggesting the format is still gaining ground rather than plateauing.

Disclaimer: The content provided on this page is for informational and educational purposes only and does not constitute financial or investment advice. Cryptocurrency markets are highly volatile and involve significant risk of loss. Always do your own research and consult a licensed financial advisor before making any investment decisions.