How to Read Funding Rates: The Long/Short Thermometer of Perps
CryptoRebateHub Editorial Team
Funding is a fee longs and shorts pay each other. Positive = crowded longs, negative = crowded shorts. It is a sentiment gauge.
What funding is Perpetual contracts have no expiry. To keep the contract price near spot, exchanges use a "funding rate": every 8 hours (varies by venue) one side pays the other.
What the sign means Positive: contract trades above spot, longs are crowded, longs pay shorts. Negative: shorts are crowded, shorts pay longs. Extreme positive funding often marks overheated sentiment prone to pullbacks; extreme negative funding often appears near panic bottoms.
How to use it It is not a timing oracle but a sentiment thermometer. Persistently high funding (tens or hundreds of percent annualized) means leveraged longs are over-crowded, and a dip can cascade into liquidations. The reverse holds for deep negative funding.
Mind the cost If you hold a long perp while funding is positive, you pay every 8 hours — for long holds, spot is cheaper. For market-neutral arbitrage, see our funding-rate arbitrage tool.
See also funding rates, Leverage & Liquidation Basics: The One Thing to Calculate First
