Funding rates are one of the most important mechanics in crypto perpetual futures. They can increase trading costs, reduce hedge performance, or create additional income depending on whether a trader is paying or receiving funding.
For hedgers, funding rates matter because a hedge is not only affected by price movement. It is also affected by the cost of holding the futures position. A short hedge may protect a Bitcoin holder from downside risk, but if funding is negative, that hedge may become more expensive. A long hedge may provide upside exposure, but if funding is positive, the trader may pay funding while holding it.
In simple terms, a positive funding rate means longs pay shorts. A negative funding rate means shorts pay longs. Understanding this difference helps traders plan better hedges, estimate net profitability, and avoid unexpected costs.
This guide explains how positive and negative funding rates work, how they affect hedging profitability, and how traders can monitor funding rates on Bitunix.
Funding rates are periodic payments exchanged between long and short traders in perpetual futures markets. They help keep the perpetual futures price close to the underlying spot price.
Perpetual futures do not have an expiry date. Because there is no fixed settlement date, the contract price can move above or below the spot price. Funding rates help reduce this gap by encouraging balance between long and short demand.
Funding is not usually paid directly to the exchange. Instead, it is exchanged between traders who hold long and short positions.
The direction of the funding rate determines who pays and who receives.
| Funding Rate | Who Pays | Who Receives | Common Market Meaning |
| Positive Funding | Long traders | Short traders | More demand for longs |
| Negative Funding | Short traders | Long traders | More demand for shorts |
When funding is positive, traders holding long positions pay traders holding short positions. When funding is negative, traders holding short positions pay traders holding long positions.
This matters for hedgers because the hedge position may either earn funding or pay funding while it is open.
Funding rates exist because perpetual futures have no expiration date. Traditional futures eventually settle or expire, which helps bring the futures price closer to the spot price. Perpetual futures need another mechanism to create that alignment.
If the perpetual futures price trades above the spot price, funding often turns positive. This makes long positions more expensive and rewards shorts, encouraging the market to rebalance.
If the perpetual futures price trades below the spot price, funding often turns negative. This makes short positions more expensive and rewards longs, again encouraging the contract price to move closer to spot.
On Bitunix, funding is usually charged every 8 hours at 00:00, 08:00, and 16:00 UTC. However, the funding time may be adjusted for certain trading pairs depending on market conditions.
Users only pay or receive funding if the position is open at the funding time. If a position is closed before the funding fee is charged, no funding fee is payable for that interval.
This is important for hedging because holding time directly affects funding cost or funding income.
A positive funding rate usually happens when the perpetual futures price is above the spot price. This often occurs when more traders are taking long positions and market sentiment is bullish.
When funding is positive:
Assume the following:
| Item | Value |
| BTC Spot Price | $81,000 |
| BTC Perpetual Price | $81,200 |
| Funding Rate | 0.0002 |
| Short Futures Position | $100,000 |
Funding received by the short position:
$100,000 × 0.02% = $20
In this example, the short trader receives $20 at the funding interval if the position is open when funding is charged.
For a hedger who is holding BTC spot and shorting BTC perpetual futures, positive funding can help offset holding risk and improve hedge profitability.
A negative funding rate usually happens when the perpetual futures price is below the spot price. This often occurs when more traders are taking short positions and market sentiment is bearish.
When funding is negative:
Assume the following:
| Item | Value |
| ETH Spot Price | $3,000 |
| ETH Perpetual Price | $2,950 |
| Funding Rate | -0.01% |
| Long Futures Position | $50,000 |
Funding received by the long position:
$50,000 × 0.01% = $5
In this example, the long trader receives $5 at the funding interval if the position is open when funding is charged.
For a trader using a long hedge, negative funding can reduce holding cost or create additional income.
Hedging profitability depends on more than price movement. Funding rates can change the final result.
A hedge may protect the portfolio but still become costly if the trader pays funding repeatedly. On the other hand, a hedge may become more efficient if the trader receives funding while the hedge is open.
A short hedge is commonly used by traders who already own crypto and want protection against downside risk.
For example, a trader owns BTC in spot and opens a short BTC perpetual futures position to hedge against a possible price drop.
If funding is positive, the short futures position receives funding. This can improve the hedge because the trader receives payments while staying protected.
This setup can be useful when:
A short hedge becomes more expensive when funding is negative because shorts pay longs.
This can reduce hedging profitability, especially if the position stays open across multiple funding intervals.
For example, a trader holds BTC spot and shorts BTC perpetual futures. If funding is negative for several days, the trader keeps paying funding while maintaining the hedge.
This may still be acceptable if the hedge protects against a larger price decline, but the cost must be included in the strategy.
A long hedge may be used by traders who want upside exposure while holding stablecoins or reducing spot exposure.
If funding is negative, the long futures position receives funding. This can make the hedge more attractive because the trader gains upside exposure and receives funding payments.
This setup may be useful when:
A long hedge becomes more expensive when funding is positive because longs pay shorts.
This can reduce profitability if the long hedge is held for many funding periods. A trader expecting a price increase may still choose to hold the long position, but funding cost should be included in the expected return.
A simplified funding calculation is:
Funding Payment = Position Value × Funding Rate
If the trader is on the receiving side, this becomes funding income.
If the trader is on the paying side, this becomes funding cost.
Example:
| Item | Value |
| Position Value | 100,000 USDT |
| Funding Rate | 0.03% |
Funding payment:
100,000 × 0.03% = 30 USDT
If the trader pays funding, the cost is 30 USDT.
If the trader receives funding, the income is 30 USDT.
Funding can look small for one interval, but it can add up.
Assume:
| Item | Value |
| Position Value | 100,000 USDT |
| Funding Rate | 0.02% |
| Funding Intervals Per Day | 3 |
Funding per interval:
100,000 × 0.02% = 20 USDT
Daily funding:
20 × 3 = 60 USDT
If this continues for 7 days:
60 × 7 = 420 USDT
This shows why hedgers should monitor funding before holding perpetual futures positions for long periods.
Funding rates can also help traders understand market sentiment.
Positive funding may suggest:
Negative funding may suggest:
However, funding rates should not be used alone. A high positive funding rate does not guarantee a market top, and a negative funding rate does not guarantee a reversal. Strong trends can continue for longer than expected.
Some traders use funding rates in basis or cash-and-carry-style strategies. For example, a trader may hold spot BTC and short BTC perpetual futures to collect positive funding while reducing directional exposure.
This type of strategy may look simple, but it has risks:
Funding strategies should be tested carefully before using large capital.
Funding rates can improve hedging profitability, but they also introduce risks.
Risks and Their Explanations:
A funding rate strategy should always include risk management.
Funding rates can help traders decide whether a hedge is worth holding.
Before opening a perpetual futures hedge, check whether you will likely pay or receive funding.
If you are opening a short hedge, positive funding can be beneficial because shorts receive funding. If you are opening a long hedge, negative funding can be beneficial because longs receive funding.
Calculate expected funding cost using position value and funding rate. If the hedge will stay open for several days, multiply the expected funding cost across multiple intervals.
For example, if funding is charged three times a day, even a small funding rate can become meaningful over a full week.
A hedge may still be useful even if it costs money, but the protection should justify the cost.
For example, paying funding may be acceptable if the hedge protects against a major downside move. However, if the hedge cost is too high compared with the risk being reduced, the strategy may need adjustment.
Funding rates are not fixed. A profitable funding setup can change quickly if market sentiment shifts.
A trader receiving funding today may start paying funding later if the market changes direction or positioning becomes crowded.
Funding income can be wiped out by liquidation if leverage is too high. Hedgers should use leverage carefully and keep liquidation price at a safe distance from the market price.
A hedge should still have risk controls, especially if it is not fully delta-neutral.
Stop loss orders, position sizing, and margin monitoring can help prevent funding strategies from becoming uncontrolled losses.
Bitunix provides funding rate information for perpetual futures contracts. Users can pay or receive funding depending on position direction and funding rate, and funding is usually charged every 8 hours at 00:00, 08:00, and 16:00 UTC.
Bitunix futures features may help traders manage funding-related strategies through:
Users should always check the live funding rate on the specific contract before opening or holding a position.
Before using funding rates in a hedge, ask:
This checklist helps traders treat funding as part of net profitability, not as an afterthought.
Funding rates are a key part of perpetual futures trading. Positive funding means long traders pay short traders. Negative funding means short traders pay long traders. For hedgers, this can directly affect profitability.
A short hedge may become more profitable when funding is positive because the short position receives funding. A long hedge may become more profitable when funding is negative because the long position receives funding. However, funding rates can change quickly, and repeated funding payments can become expensive when the trader is on the paying side.
On Bitunix, funding is usually charged every 8 hours at 00:00, 08:00, and 16:00 UTC, and users only pay or receive funding if the position is open at the funding time. Traders should check the live funding rate, estimate funding cost, manage leverage, and include funding in every hedging plan.
A funding rate is a periodic payment exchanged between long and short traders in perpetual futures. It helps keep the perpetual contract price close to the spot price.
A positive funding rate means long traders pay short traders. It often happens when the perpetual futures price trades above the spot price.
A negative funding rate means short traders pay long traders. It often happens when the perpetual futures price trades below the spot price.
Funding rates affect the cost or income of holding a futures hedge. A hedge can become more profitable if it receives funding, or more expensive if it pays funding.
A short hedge benefits when funding is positive because short traders receive funding from long traders.
A long hedge benefits when funding is negative because long traders receive funding from short traders.
Funding is usually charged every 8 hours at 00:00, 08:00, and 16:00 UTC. Timing may change for some pairs depending on market conditions.
No. Users only pay or receive funding if the position is open at the funding time. If the position is closed before funding is charged, no funding fee is payable for that interval.
Yes. If a hedge receives funding, it may generate income even if price does not move much. However, fees, slippage, leverage risk, and funding changes must still be considered.
No. Funding strategies are not risk-free. Funding can flip, markets can move sharply, fees and slippage can reduce returns, and leveraged futures positions can face liquidation.
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