Perpetual Funding Rates, Explained for Allocators
Perpetual futures have no expiry, so a periodic payment keeps them anchored to spot. What funding measures, how venues calculate it, and how to read it.
A conventional futures contract converges to the spot price at expiry, because on that date the two must be equal. Perpetual futures never expire, so they need a different mechanism to stay close to spot. That mechanism is funding: a periodic payment exchanged directly between holders of long and short positions.
How the mechanism works
When the perpetual trades above the spot index, the funding rate is typically positive and longs pay shorts. This makes holding a long more expensive and a short more attractive, encouraging trades that push the perpetual back toward spot. When the perpetual trades below spot, the rate turns negative and the payment flows the other way.
Reading funding as a positioning signal
- Persistently high positive funding indicates strong demand for leveraged long exposure.
- Sharply negative funding often accompanies crowded shorts or hedging demand.
- Extremes can precede reversals, as the cost of carrying the crowded side accumulates.
- Funding reflects leverage demand relative to arbitrage capacity, not directional conviction alone.
Comparability pitfalls
A rate quoted per eight hours cannot be compared directly with one quoted per hour, and caps can truncate the signal during the most extreme periods. Before aggregating across venues, rates should be normalized to a common interval — and ideally annualized — with the cap and the index construction of each venue recorded alongside the value.
“Funding is not a forecast. It is the price the market charges for holding the popular side of a trade.”
For allocators, the practical uses are twofold: as a carry cost that directly affects the return of any perpetual position, and as a measure of how crowded leveraged positioning has become — context that belongs in any assessment of liquidation risk.
This publication is provided for informational purposes only and does not constitute investment, legal, or tax advice, or an offer or solicitation to buy or sell any asset. Live figures are computed from third-party public market data and may be delayed, incomplete, or inaccurate.
