Funding Rates: Why Traders Pay the Other Side

A contract without a final meeting point

A dated future has a settlement date that connects its value to the underlying asset. A perpetual has no scheduled expiry. If traders aggressively demand leveraged long exposure, its price can trade above spot without an approaching delivery date forcing the gap shut.

Funding provides an ongoing incentive to bring prices closer. A positive rate makes longs pay shorts; a negative rate reverses the payment. Every contract has both sides: the imbalance is in demand and willingness to pay, not a larger number of long contracts than short contracts.

Mechanics: perpetual funding — Hyperliquid

Like floating interest on exposure

Funding resembles an interest charge because it is a rate paid over time on a position’s notional value. Some formulas include an interest component and a premium component. Economically, the payment can compensate traders willing to supply the opposite exposure and commit collateral.

It is not necessarily interest on an actual loan. An unleveraged perp position can still pay funding; using more leverage changes the charge relative to your margin, not the rate on the contract. Intervals, caps, reference prices, and eligibility at settlement vary by venue and contract.

Mechanics: funding rates — Binance

Collect funding while hedging direction

For positive funding, a common starting structure buys spot and shorts the same underlying quantity in a linear perpetual. If BTC rises, the spot gain approximately offsets the short’s price loss; if it falls, the reverse happens. The short can receive funding while the rate stays positive.

Matching quantity matters. Different contract multipliers, inverse payoffs, or collateral currencies can leave residual exposure. Negative funding suggests a different structure—long the perp and short spot—but borrowing the spot asset may be costly or unavailable.

Count the whole capital commitment

Suppose spot BTC costs $10,000 for your chosen quantity and you short the same quantity of perpetuals, with another $2,000 reserved as margin. At an illustrative 0.01% per eight-hour interval and unchanged notional, funding is $1 per interval, or $3 daily. That is 0.025% of the $12,000 committed each day, before costs.

If unchanged for 365 days, the simple annualized figure would be about 9.1%, without compounding. It is an extrapolation, not a forecast. Round-trip costs of $24 consume eight such days of gross funding. A rate quoted per hour cannot be compared directly with one quoted per eight hours.

The hedge does not make income fixed

Net P&L combines funding received minus paid, changes in the spot–perp gap, execution costs, and any borrowing costs. Rates can reverse before fees are recovered. A rising spot holding also does not automatically transfer collateral into a losing short account; the short can liquidate while the combined economic exposure looks balanced.

Margin buffers, liquidity, custody, and venue reliability therefore matter alongside the displayed rate. Adding leverage raises sensitivity to these constraints. The aim is to reduce directional exposure, not to manufacture guaranteed interest.

Research the income stream, not today’s APR

Record actual funding settlements, both legs’ prices, all committed collateral, and entry and exit costs. Test changing rates and a widening price gap. Ask how long funding must persist to cover costs, and whether each account can survive a sharp move before funds can be rebalanced.

A credible result shows the income, the capital it used, and the losses that came with it.