Crypto funding rate, explained
Funding rates keep perpetual futures in line with spot prices. How funding works, what positive and negative rates say about traders' positions, and how to read extremes.
Perpetual futures in one paragraph
Most crypto derivatives trading happens in perpetual futures, contracts that let traders bet on a coin's price with leverage and no expiry date. Because they never expire, exchanges need a way to keep their price close to the real spot price. That mechanism is the funding rate.
How funding works
Every few hours, usually every 8 hours, traders on one side of the market pay traders on the other side. When the funding rate is positive, traders holding long positions pay those holding shorts. When it is negative, shorts pay longs.
The rate is small, often around 0.01% per 8-hour period, but with leverage it adds up. Some exchanges now settle certain contracts every 4 or 1 hours, so Blockdeck converts rates to an 8-hour basis to compare coins fairly.
What the rate tells you
A positive rate means more demand to be long than short: traders are paying for bullish exposure. A negative rate means the opposite. The size of the rate shows how one-sided positioning has become.
Very high funding means many traders are leveraged in the same direction. That can make the market fragile, because a sharp move against them can force many positions to close at once.
Reading extremes carefully
Funding is a measure of positioning, not a prediction. Rates can stay elevated for long periods during strong trends. It is most useful alongside open interest and liquidation data, which Blockdeck VIP shows together.