Funding Rate
The funding rate is a periodic payment exchanged between long and short positions in perpetual futures markets, designed to keep the perpetual's price tethered to the underlying spot price. When longs pay shorts the rate is positive; when shorts pay longs it is negative.
✦ Key Insight
Funding is one of the cleanest indicators of crowded positioning. Persistently high positive funding signals over-leveraged longs and often precedes long liquidation cascades; deeply negative funding signals the reverse.
✕ Common Misconceptions
Ignoring funding cost when holding a leveraged position for days.
Reading funding as a directional signal in isolation — it is a positioning signal, not a price forecast.
Comparing funding rates across exchanges without normalizing the interval.
Detailed Explanation
How It Works: Most exchanges calculate funding every 8 hours (some hourly) based on the gap between the perpetual price and an index of spot prices. Holders of positions at the snapshot pay or receive funding proportional to their position size; the exchange itself does not take this fee.
FAQs:
Who pays funding? The side of the market with the dominant pressure pays the other side; the exchange does not collect it.
Can funding flip mid-trade? Yes, and frequently does during volatile markets.
In Practice
Dig Deeper
Perpetual Futures
Perpetual Futures (Perps) Derivative contracts that track the price of an underlying asset (e.g., BTC) with no expiration date, settled in cash or stablecoins.
Basis Trade
A basis trade is a market-neutral strategy that profits from the price difference (the "basis") between a spot asset and its futures contract, or between two derivatives on the same asset. The trader holds offsetting positions so directional price moves largely cancel out.
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