Perpetual funding rates: who pays, and why annualized funding is not a return
An annualized funding rate of 20% can look like an interest quote. It may instead be a short-lived holding cost expressed on a yearly scale—and you may be the side paying it.
Start with the payer
Perpetual funding helps keep the contract’s price aligned with its spot reference. Under the usual convention, longs pay shorts at a positive rate; shorts pay longs at a negative rate. Settlement arrangements depend on the contract.
The sign identifies the paying side. It does not establish which side will make money after price changes.
Calculate one settlement first
Take an invented contract settling every eight hours at 0.01%, with a 10,000 USDT notional position. One settlement costs about 1 USDT. Three unchanged settlements would cost about 3 USDT over a day.
The calculation uses position notional, not the margin balance. Posting 1,000 USDT of margin does not reduce the fee base to 1,000. Price and position changes also alter the amount.
How 0.01% becomes 10.95%
Simple annualization gives 0.01% × 3 settlements × 365 days = 10.95%. It is a change of scale under an unchanged-rate assumption, not a promise about the coming year.
Check whether the display annualizes the current rate or an average, which settlement interval it assumes, and whether it uses simple or compounded arithmetic. Numbers with different conventions are not directly comparable.
High funding: persistence matters
Rising positive funding makes long exposure more expensive. A single spike and a sustained run deserve different descriptions. For a group of altcoins, distinguish a few outliers from a broad increase.
Treat that as a prompt to examine crowding, not a forecast of an imminent decline. Funding can change as price, hedging and contract demand change.
Receiving funding does not settle the trade’s result
Funding receipts can be outweighed by price losses, fees or slippage. Paired spot and derivative exposure introduces its own basis, margin and execution issues.
Before comparing dashboard numbers, identify whether you are reading a cost rate or a strategy return after costs. They are different quantities.
Concept references and examples
Prices, amounts and scenarios are invented teaching examples, not historical market observations, backtest results or return promises. These references support the concepts; they do not identify the supplier of this site’s market series or imply endorsement.
Sources checked: 2026-10-03Now read the number in its context.
The guide explains the reading; the dashboard provides dated observations. Put them together and make your own decision about participation.
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