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Funding: who pays whom, and what it says about the crowd
Funding exists to keep a perpetual from drifting away from spot. Along the way it became the most honest sentiment gauge: it shows money, not opinions.
A perpetual future has no date on which it must converge with spot. So another mechanism is needed to stop it drifting. That mechanism is funding: every eight hours one side pays the other.
How it works
If the future trades above spot, there are more longs than shorts, and longs pay shorts. Holding a long becomes expensive, holding a short becomes profitable, and the imbalance dissolves. If the future trades below spot, the reverse: shorts pay longs. The market pulls itself back to spot with no expiry needed.
Note: position SIZE, not your collateral. A $10,000 position at 0.01% pays $1 per period whether it is backed by $10,000 or by $500 on leverage. At 20x that dollar is 0.2% of your collateral every eight hours.
The sign
Positive funding: longs pay shorts, buyers dominate positioning. Negative: shorts pay longs, sellers dominate. On a calm market the usual rate is around +0.01% per eight hours; that is the value everything oscillates around. Negative funding is rare in itself and always says something.
The cost of holding a long for a week
A $5000 position at +0.02% every eight hours. Three charges a day: $5000 × 0.02% × 3 = $3. Over a week, $21. If you expected to make 2% ($100), funding ate a fifth of the target before price moved anywhere. At 0.1% — which a hot market does produce — the same seven days cost $105, more than the entire expected profit.
Reading funding as a directional signal
"Funding is high, so everyone is long, so a drop is coming." It does not work like that. High funding can persist for weeks in a strong trend, price rising the whole time, while whoever shorted "against the crowd" pays for that opinion and watches a loss. Funding speaks about CROWDING of positions, not about when the crowd unwinds. It answers "how painful if it turns", not "will it turn".
Why the absolute number is useless
A rate of +0.05% is ordinary for one coin and a yearly record for another. Every instrument has its own norm, set by who trades it. Comparing coins by absolute rate is like comparing people by weight without looking at height. What matters is where the rate sits in the instrument's OWN history.
That is why our screener puts a rank next to the rate — the share of days in the year when funding was lower than today. A rank of 97 means it was higher on only 3% of days: now that is an extreme. Whereas +0.05% with no rank means nothing.
More about fundingWhat is worth watching
- The rank against the coin's own history, not the raw number.
- Divergence between exchanges: +0.08% on one and −0.01% on another means the imbalance is local, not market-wide.
- The rate together with open interest: high funding on rising OI means positions are being built; on falling OI they are being closed.
- The moment the sign FLIPS: a move from positive to negative marks a change of mood more precisely than any absolute value.
Find an extreme and see what followed
Open the screener, sort by funding rank and take a coin ranked above 95. Open its chart and find a moment in history when the rank was equally high. Look at what happened over the next 24 hours. Do this on five coins and you will know more about funding than any article gives you, this one included.
Funding is −0.03%. You are short. Do you pay or receive?
You pay. Negative funding means the future trades below spot and shorts dominate — so shorts pay longs. The sign tells you who is in the majority; the majority always pays the minority.
Is funding more important for a scalper or for a position trader?
For the position trader. A scalp lives for minutes and never reaches a funding charge. For someone holding for weeks, funding becomes a standing rent that must be built into the target. The longer the horizon, the more weight funding carries.