What Are Funding Rates in Crypto Perpetual Futures?
Direct answer
Funding rates explained
A funding rate is a small payment exchanged between long and short holders of a perpetual futures contract, usually every 8 hours on major exchanges (some use 1 or 4 hours). When the perpetual trades above spot, the rate is positive and longs pay shorts; when it trades below, shorts pay longs. The payment equals your position's notional value times the rate, so 0.01% every 8 hours on a $10,000 position is $1 per interval, about $110 a year if it stayed constant.
- Paid between longs and shorts, not to the exchange (on most venues)
- Positive rate: longs pay shorts
- negative: shorts pay longs
- Payment = notional value × rate at each funding time
- 0.01% every 8 hours ≈ 10.95% a year on notional
- leverage magnifies it relative to margin
Perpetual futures never expire, which raises an obvious question: what keeps their price tied to the real coin? The answer is funding, and it can quietly cost or earn a trader a lot.
What people on X are asking
In June 2025 one educational post asked what a funding fee is, describing it as a periodic payment between long and short traders. In July 2026 another asked what funding is and how traders can benefit from it, and a June 2025 DeFi thread compared funding-based yields with basis arbitrage, "the oldest trade in crypto". We explain the mechanics and the arithmetic without recommending any venue.
The fact-checked answer
Why funding exists. A dated futures contract converges to spot at expiry. A perpetual has no expiry, so exchanges use funding instead: if the perpetual price is above the spot index, holding a long becomes more expensive and holding a short pays, which pulls the prices together. Formulas vary by exchange, but most combine a premium (the gap between perpetual and index) with a small interest component.
Who pays whom. On most venues funding goes directly between traders. Positive funding: longs pay shorts. Negative funding: shorts pay longs. You only pay or receive if you hold a position at the funding timestamp.
How much it costs. Payment = position notional × funding rate. Because it is charged on the notional, not your margin, leverage magnifies its impact on your account.
What a constant funding rate adds up to
Simple (non-compounded) arithmetic by UXS: rate × 3 × 365, then × leverage for the effect relative to margin. Real funding changes every interval, so these are illustrations, not forecasts. Tap a column header to sort.
| 0.005% | 0.015% | 5.5% | 27% | 55% |
| 0.01% | 0.03% | 10.95% | 55% | 110% |
| 0.03% | 0.09% | 32.9% | 164% | 329% |
| 0.05% | 0.15% | 54.8% | 274% | 548% |
| 0.10% | 0.30% | 109.5% | 548% | 1,095% |
What extreme funding signals. Very high positive funding means many traders are paying to stay long with leverage. That crowding can unwind sharply: a fall triggers liquidations, which push the price lower and trigger more. Strongly negative funding shows the opposite crowding and can precede short squeezes. Funding is a sentiment gauge, not a timing signal.
The basis trade. Some traders buy spot and short the perpetual in equal size to collect positive funding while staying market-neutral. It is not risk-free: funding can turn negative, exchanges can fail, and the short leg can be liquidated in a spike if it is under-margined. The general idea of earning a rate gap resembles the carry trade in currencies, which the BIS showed can unwind violently.
Quick poll
How do you treat funding rates when you trade perpetuals?
What each answer means
- I check funding before every trade: Good practice: on multi-day holds, funding can outweigh fees.
- I only notice it on my statement: Worth checking: at high leverage, funding can take a large share of margin over weeks.
- I use funding as a sentiment signal: Reasonable as context; extremes can persist longer than expected.
- I try to earn funding with spot plus short: A real strategy with real risks: exchange risk, rate flips and liquidation of the short leg.
- I don't trade perpetuals: Funding only affects perpetual futures positions.
Your answer is stored only in this browser (localStorage). UXS does not collect, count or publish votes, so no totals are shown.
Funding shows positioning; the order book shows liquidity; see how to read bids, asks and depth.
Decision helper
| Situation | Funding effect | Consider |
|---|---|---|
| Intraday trade closed before funding time | None | Check the exact timestamps |
| Long held for weeks in a hot market | Steady cost | Lower leverage or spot instead |
| Short during strongly negative funding | You pay longs | Squeeze risk is also elevated |
| Spot plus short perpetual | You earn positive funding | Venue risk and margin on the short |
Common mistakes
- Comparing funding with your margin instead of your notional, or the reverse, without noticing.
- Assuming today's rate will hold for a year.
- Forgetting funding can flip sign within hours.
- Ignoring venue risk in "safe" funding strategies.
FAQ
What does a positive funding rate mean?
The perpetual is trading above the spot index, so longs pay shorts at the next funding time.
How often is funding paid?
Commonly every 8 hours on large exchanges; some use 1-hour or 4-hour intervals for certain contracts.
Is funding charged on margin or position size?
On the position's notional value, which is why leverage amplifies its effect.
Does the exchange keep the funding fee?
On most venues it passes between traders; trading fees are separate.
Can funding rates predict price?
Extremes show crowded positioning, which can precede sharp moves, but they are not reliable timing signals.
Do spot holders pay funding?
No. Funding only applies to perpetual futures positions open at the funding time.
Sources
- CFTC: Understand the risks of virtual currency trading
- CFTC: Basics of futures trading
- SEC Investor.gov: Crypto assets
- BIS Bulletin: The market turbulence and carry trade unwind of August 2024
Facts checked November 10, 2026. X posts are cited as evidence of the question, not of the answer.