Technical Definition

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.

By Crypto University Editorial
Perpetual FuturesBasis TradeOpen Interest

✦ 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:

When funding is positive, long traders generally pay short traders. When it is negative, short traders generally pay long traders. The exchange calculates the rate using its own formula, commonly based on differences between perpetual and spot prices, interest components, and market conditions. Payments occur at scheduled intervals. The timing and calculation vary between platforms.

FAQs:

  • Does the exchange keep the funding payment?
    In the standard model, funding is transferred between long and short traders, although platform mechanics vary.

    Can funding change before the next payment?
    Yes. Estimated rates may change with market conditions.

    Is negative funding always bullish?
    No. It shows short-side payment pressure, not a guaranteed price increase.

In Practice

“A trader holds a $20,000 BTC perpetual long position. The funding rate is 0.01% for the interval. The approximate funding payment is $2. If similar funding continues across many intervals, the cumulative cost can become significant.”

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.