Funding Rate Carry: What Holding a Leveraged Position Really Costs

Most traders think of a perpetual futures position as having two costs: the taker fee to get in and the taker fee to get out. There is a third cost, it is paid continuously for as long as the position is open, and it is the one that quietly turns a marginally profitable swing trade into a losing one. That cost is funding, and the running total of it over your holding period is your carry.

Carry is easy to underestimate for one specific reason: funding is charged on the notional value of your position, while your profit and loss is usually measured against your margin. At 20x leverage, a funding rate that looks like a rounding error against the position size is twenty times larger when you measure it against the capital you actually put up. A rate of 0.01% per eight hours is 0.03% per day on notional, which is 0.6% per day against margin at 20x. Hold that for a week and carry alone has consumed more than 4% of your account equity before the price has moved at all.

This guide covers what the funding rate actually is and where the number comes from, how to convert between the per-interval and annualized quotes you will see on different venues, how to compute carry for a specific position and holding period, the break-even price move that carry forces on you, how funding debits interact with your liquidation price, and when carry flips from a cost to a source of income. Every section is written so you can model it yourself with the funding rate calculator as you read.

What the Funding Rate Actually Is

A perpetual futures contract has no expiry date. That is the entire point of it, and it is also its central engineering problem. A dated futures contract converges to spot because it settles on a known date, and arbitrageurs enforce that convergence as expiry approaches. A perpetual has no such anchor. Left alone, its price could drift arbitrarily far from the underlying spot market and never be pulled back.

Funding is the mechanism that replaces expiry. At fixed intervals, the exchange computes a funding rate from the gap between the perpetual price and an index of spot prices. If the perpetual trades above spot (a premium, which happens when demand to be long exceeds demand to be short), the rate is positive and longs pay shorts. If the perpetual trades below spot (a discount), the rate is negative and shorts pay longs. The payment goes directly from one side to the other, peer to peer. The exchange is not a counterparty to it and typically takes no cut of it.

The economic effect is a continuous incentive to close the gap. When longs are paying a large positive rate, holding a long gets expensive and holding a short gets paid, which attracts sellers and pushes the perpetual back toward spot. Funding is therefore not a fee the exchange invented to extract money from you. It is the price of the crowd being one-sided, and you pay it when you are standing on the crowded side.

Where the number comes from

Most major venues compute funding as the sum of two components. The first is a premium index: a time-weighted average of the difference between the perpetual mark price and the spot index price over the interval, expressed as a percentage of the index. The second is an interest rate component, which reflects the difference in borrowing cost between the quote currency and the base currency and is usually a small fixed constant on crypto venues. The result is then clamped to a maximum, both by a per-interval cap and by a damper band that stops tiny premiums from producing funding at all.

Three practical consequences follow from this construction:

• Funding is backward-looking. The rate you pay at the funding timestamp was computed from the premium that already existed during the preceding interval. It tells you what positioning was, not what price will do next.
• Funding is venue-specific. Each exchange runs its own order book, its own index composition, and its own damper and cap parameters. The same symbol can carry a materially different rate on two venues at the same moment.
• Funding is capped, not unbounded. Even in a violent squeeze, the per-interval rate hits a ceiling. That ceiling can still be enormous when annualized, but it is finite and it is published in each venue's contract specifications.

The Unit Trap: Per-Interval, Daily, and Annualized

More mistakes are made converting funding rates than computing them. The number displayed on an exchange order ticket is almost always the rate for a single funding interval, not a daily or annual figure. The number quoted in research and on data dashboards is very often annualized. Comparing one to the other without converting produces errors of a factor of a thousand.

The standard interval is eight hours, which means three funding events per day and 1,095 per year. Some venues and some symbols settle hourly, which is 24 per day and 8,760 per year. Always confirm the interval for the specific contract before you convert anything.

The annualized column above uses simple annualization: rate multiplied by the number of intervals in a year. That is the convention almost every crypto data source uses, and it is the right one for comparing rates at a glance. It is not the right one for projecting a year of compounded carry, because funding is settled into your margin balance and a real position would be resized or reset many times over that horizon. Treat annualized funding as a comparison unit, not as a forecast of a year of returns.

Carry Math: Why Leverage Multiplies the Cost

A single funding payment is calculated as:

Notional is the full size of the position, which is your margin multiplied by your leverage. Your margin never enters the funding formula. This is the entire reason carry scales with leverage: the cost is anchored to the exposure, while the account impact is measured against the collateral.

Take a concrete case. You commit $1,000 of margin and hold the position for three days at a funding rate of 0.01% per eight hours, and you are on the paying side throughout.

• Funding events over three days: 3 per day x 3 days = 9
• Total rate paid over the holding period: 9 x 0.01% = 0.09% of notional

At 50x, three days of an unremarkable funding rate costs 4.5% of your collateral. That is a meaningful fraction of the margin that stands between you and liquidation, and it was spent without the price moving a single tick. Now raise the rate. During a strong trending phase it is common for a popular altcoin perpetual to sit at 0.05% or higher per eight hours for days at a time. At 0.05% per interval, the same three-day hold costs 0.45% of notional, which at 20x is 9% of your margin and at 50x is 22.5% of it.

The Break-Even Move Carry Forces On You

The useful way to think about carry is not in dollars but in required price move. Because both carry and profit and loss are computed on the same notional, the leverage cancels out and you get a clean answer in percentage of price:

Suppose you pay 0.055% taker in and 0.055% taker out, which is 0.11% round trip, and you hold a long through a 0.01% per eight-hour rate.

Read that last row carefully. Holding a long for a month through a modest positive rate means the market has to move about 1% in your favour before you have made anything at all. If the same position is held through a 0.05% rate instead, the month costs 4.5% and break-even becomes roughly 4.6%. This is why funding matters far more to swing and position traders than to scalpers, and why an otherwise sound multi-week thesis can be destroyed by entering it on the crowded side of a heavily-funded market.

Note also the first row. A four-hour intraday position may cross zero or one funding timestamps depending purely on what time you opened it. If you enter twenty minutes before a funding stamp on the paying side, you take a full interval of carry for twenty minutes of exposure. If you enter twenty minutes after it, you take none. For short holds, the timestamp matters more than the rate does.

How Funding Debits Move Your Liquidation Price

Traders routinely compute a liquidation price at entry, write it down, and treat it as fixed for the life of the trade. It is not fixed, and funding is one of the reasons why. When a funding payment is debited on an isolated-margin position, it comes out of the margin allocated to that position. Less margin backing the same notional means a liquidation price that has crept closer to the market.

The effect is small per interval and cumulative over time. Consider a long with $1,000 of isolated margin at 20x on a $20,000 notional, paying 0.03% per day. After a week, roughly $42 has been debited. The position now has about $958 of margin against the same $20,000 of exposure, which is effectively 20.9x rather than 20x, and the liquidation price has moved toward the entry accordingly. After a month at that rate, roughly $180 is gone and the effective leverage is closer to 24x. Nothing about the trade thesis changed. The buffer just shrank.

Two habits follow from this. First, recompute your liquidation level periodically on any position you intend to hold for more than a day or two, using the current margin balance rather than the amount you originally deposited. The liquidation calculator makes that a ten-second check. Second, if you are running an isolated position through a sustained high-funding period, budget for topping up margin as part of the plan rather than discovering the drift when the position is already under pressure. The mechanics of how those buffers fail under stress are covered in detail in our guide to liquidation cascades and why a calculated liquidation price is a floor rather than a guarantee.

When Carry Is Income Instead of Cost

Funding is a transfer, so for every trader paying it there is a trader receiving it. Being on the receiving side is not clever by itself, because the receiving side is usually the side positioned against a strong trend, and getting paid a few basis points per interval while the market runs against you is not a good trade. Carry becomes genuinely interesting only when the price exposure is removed.

The classic construction is the cash-and-carry, or basis, trade: hold the asset on spot and short an equivalent notional of the perpetual. Directional exposure nets to approximately zero, and while funding is positive the short leg collects it. The return comes from carry rather than from direction. This is the same structure that funds and market makers run at scale, and it is the honest answer to the question of who is on the other side of your funding payment.

It is not free money, and the risks are specific rather than vague:

• The rate can flip. Positive funding is a regime, not a constant. A market that pays you today can charge you next week, and the position that was collecting carry becomes one that is bleeding it.
• The short leg still needs margin. If the market rallies hard, the perpetual short takes unrealized losses that must be collateralized even though the spot leg has gained. Traders get liquidated on the hedge leg of a hedged trade more often than they expect, usually because collateral was in the wrong place.
• Fees and slippage eat thin spreads. Two legs in and two legs out is four executions. If the annualized carry is in the single digits, round-trip costs can be a large share of the whole expected return.
• Venue risk is concentrated. Cross-venue versions of the trade require capital sitting on two exchanges simultaneously, and rebalancing between them is neither instant nor free.

Model the yield before committing to any of it. The funding rate calculator will tell you what a given rate pays over your intended holding period, and the wider mechanics of cross-venue spread trades are covered in our crypto arbitrage guide.

Reading Live Funding Before You Size the Trade

Every calculation above needs one input you cannot get from a calculator: the rate that is actually being charged right now, on the specific contract you intend to trade, on the specific venue you intend to trade it on. Exchange order tickets show you the current rate for that venue, which is enough if you have already decided where to trade. It is not enough if you want to know whether the venue you defaulted to is the expensive one.

Cross-venue divergence is real and routinely material. Because each exchange derives funding from its own book and its own index, the same symbol can be meaningfully cheaper to hold on one venue than another at the same moment. For a scalper that difference is noise. For someone planning to hold a leveraged position for two weeks, choosing the venue with the lower rate on the side they intend to take is one of the few genuinely free improvements available to a retail trader.

Aggregated funding data across Bybit, Binance, and Hyperliquid is available on the Smart Money API derivatives screener, which normalizes each venue's rate onto a common basis and shows the annualized figure alongside open interest and long/short ratio. There is a public JSON endpoint behind it at GET /v1/derivatives/screener if you would rather pull the number into your own sheet or bot than read it off a page.

As an illustration of what an ordinary, non-stressed market looks like, a snapshot of that screener taken on 24 August 2026 showed the ten largest perpetuals by open interest carrying annualized funding between roughly 5.9% and 11.0%, with BTC around 8.0% and DOGE the highest of the group at about 11.0%. Those are historical observations from one moment, not a forecast, and they will be different by the time you read this. The point of the range is calibration: single-digit to low-double-digit annualized funding is the normal background cost of being long a major perpetual, and rates far outside that band are the signal to slow down and recompute your break-even before entering.

A Pre-Trade Carry Checklist

Run this before opening any leveraged position you expect to hold longer than a few hours. It takes about a minute once it is habitual.

• Confirm the funding interval for the contract. Eight hours is standard, but not universal.
• Read the current rate and note the sign relative to your intended side. Positive means longs pay.
• Estimate your holding period in funding intervals, not in days.
• Multiply rate by intervals to get total carry as a percentage of notional.
• Add round-trip fees to get the break-even price move.
• Compare that break-even to the size of the move your thesis actually calls for. If carry plus fees is a large fraction of the expected move, the trade is thinner than it looked.
• Check whether a funding timestamp falls inside a short intended hold, and whether entering after it rather than before it removes a whole interval of cost.
• For holds beyond a few days, note that funding debits will erode isolated margin and plan to recheck the liquidation level rather than trusting the entry-time figure.

Frequently Asked Questions

Do I pay funding continuously or only at the funding timestamp?

Only at the timestamp, on nearly every venue. If you open and close entirely between two funding stamps, you pay no funding at all. This is why the exact minute you enter can matter more than the rate for very short holds, and why funding is close to irrelevant for scalping and close to decisive for multi-week position trading. A few venues have moved toward continuous or hourly accrual, so check the contract specification rather than assuming.

Is funding charged on my margin or on my position size?

On the position size, always. Your margin is the collateral backing the position; the funding formula does not reference it. This is the single most important fact in this guide, because it is what makes carry scale linearly with leverage when measured against your account.

Can funding alone liquidate me?

In principle yes, in practice it is rare and slow. Funding debits reduce the margin backing an isolated position, and if the price sits still while a high rate is charged against high leverage for long enough, the maintenance margin threshold will eventually be reached. Far more commonly, funding does not liquidate you on its own but quietly narrows the buffer so that a normal pullback which would have been survivable at entry is no longer survivable a week later.

Does a high funding rate mean the price is about to reverse?

It does not mean that reliably. A high positive rate tells you that the perpetual has been trading at a premium to spot, which is evidence that positioning is one-sided. One-sided positioning can unwind violently, and it can also persist for weeks in a strong trend while every contrarian who shorted the crowded rate gets stopped out. Use funding to size the cost of the trade you want to make. If you want a directional read, get it from your actual strategy, not from the funding print.

Why do two exchanges show different funding for the same coin?

Because each venue computes its own premium index from its own order book and its own basket of spot reference prices, then applies its own damper band, interest component, and cap. Different books have different flow, so they develop different premiums. The gap between them is the raw material for basis and funding-spread trades, and for a directional trader it is simply a reason to check where the position is cheaper to hold before opening it.

Should I close a position just to avoid a funding payment?

Almost never. Closing and reopening costs two taker fees, which at typical rates is 0.11% of notional, whereas a single funding interval at 0.01% is 0.01%. You would be paying roughly ten times the cost you are avoiding, plus taking slippage and the risk of the market moving while you are flat. The exception is a genuinely extreme rate on a position you were going to exit soon anyway, where the arithmetic can flip. Do the arithmetic rather than assuming.

Model Your Carry Before You Enter

Every number in this guide can be reproduced in under a minute with the calculators below. Put in your real notional, your real holding period, and the rate currently quoted on your venue, and you will know your break-even before you commit capital rather than after.

Related Guides

• Crypto Options Trading: A Beginner's Guide
• Crowding, Open Interest and the Long/Short Ratio
• Understanding Order Types: Market, Limit, Stop & More
• The Complete Guide to Risk Management in Trading