If you've ever held a perpetual futures position overnight and noticed your USDC balance tick up or down unexpectedly, that's funding rate payments at work.
What is a funding rate?
Perpetual contracts don't expire, which means there's no natural convergence mechanism to keep the perp price anchored to spot. Funding rates are the mechanism that fills that role.
Every 8 hours (on most platforms including Hyperliquid), longs and shorts exchange a small payment. If the perp is trading above spot — meaning too many people are long — longs pay shorts. If the perp trades below spot, shorts pay longs.
How it's calculated
The rate is typically derived from the premium of the perpetual over the index price, blended with an interest rate component. The formula varies slightly by exchange, but the outcome is the same: it keeps the perp tethered to spot over time.
Example
Suppose BTC perp is trading at $65,200 while spot is $65,000. The market is leaning long. The 8-hour funding rate might be 0.01%. If you hold a $10,000 long position, you'd pay $1 in funding at the next interval. Not much — but it compounds fast in a high-funding environment.
When funding works against you
- Holding longs during a bull run euphoria phase — funding spikes to 0.1%+ per 8h
- Running long-duration bot strategies without checking funding cost
- High leverage positions where funding eats into margin quickly
When funding works for you
- Shorting during periods of extreme positive funding to collect payments
- Neutral delta strategies — long spot, short perp — to harvest funding
- Holding short positions during bearish, negative-funding environments
How to use it in your strategy
Always check the current funding rate before entering a position, especially if you plan to hold for more than a few hours. On ChipaX, the live funding rate is displayed in the pair header for every market.