The funding rate is a periodic payment exchanged between long and short traders in perpetual futures contracts, designed to keep the contract price anchored to the underlying spot price. Unlike traditional futures that expire, perpetuals never settle, so the funding rate acts as a mechanical incentive: when the contract trades above spot, longs pay shorts; when it trades below, shorts pay longs. This payment happens every few hours (typically every 8 hours on major exchanges like Bitget) and is calculated in the contract’s base currency, not as a fee to the exchange itself.
How the Funding Rate Is Calculated
The rate is not a single fixed number but a blend of two components: the interest rate (a baseline cost of capital) and the premium index (the gap between the perpetual price and the spot price). Exchanges publish the formula, but the logic is universal.
The Premium Index and Its Role
The premium index measures how far the perpetual price deviates from the spot index. If the perpetual trades at a 0.1% premium, the funding rate becomes positive, pushing longs to pay shorts. If it trades at a discount, the rate flips negative, and shorts compensate longs. This mechanism prevents the perpetual price from drifting too far from reality.
Interest Rate Baseline
The interest rate component is usually a small, constant value (often near zero or tied to short-term lending benchmarks). It ensures that even when the premium is zero, a tiny payment still occurs, reflecting the opportunity cost of capital. In practice, this baseline is minor compared to the premium-driven swings.
Why the Funding Rate Matters for Your Positions
For active traders, the funding rate is not a theoretical detail—it directly affects profitability. Holding a position across multiple funding timestamps means paying or receiving cash flows that can stack up over days.
Cost of Holding Long Positions
In a strong bullish trend, the funding rate often turns highly positive. Longs pay shorts at each interval. If you hold a leveraged long for a week, those payments can eat a meaningful portion of your unrealized gains, especially if the rate spikes above 0.1% per interval.
Income for Short Sellers
Conversely, during euphoric rallies, short sellers receive funding as compensation for taking the contrarian side. Some traders use this as a passive income stream, but it is risky: a short position that collects funding can still face massive losses if the price keeps rising.
Interpreting Funding Rate Extremes
Funding rates are not just costs—they are sentiment signals. Extreme values often indicate overcrowded positioning.
- High positive funding (above 0.05% per 8h): Longs are paying a premium to stay in the trade, suggesting excessive bullish leverage. This sometimes precedes a long squeeze.
- High negative funding (below -0.05%): Shorts are paying heavily, hinting at extreme bearishness. A short squeeze may follow if any positive news triggers buying.
- Near-zero funding: The market is balanced, and the perpetual price closely tracks spot. This is the “normal” state.
Traders often watch funding alongside open interest: rising funding plus rising open interest confirms trend strength, while rising funding with falling open interest warns of forced liquidations.
Practical Strategies for Managing Funding Costs
You cannot avoid funding if you hold a perpetual position, but you can plan around it.
Timing Your Entries and Exits
If you expect to hold for less than one funding interval (e.g., under 8 hours), you can skip the payment entirely. Scalpers often enter right after a funding timestamp and exit before the next one. For swing traders, check the current rate before opening—entering during a 0.2% positive funding is a different cost profile than entering at 0.01%.
Using the Funding Calendar on Bitget
Bitget displays the next funding time and the predicted rate on the contract page. You can use this to avoid opening a large position minutes before a high payment is due. Some traders also use the “funding rate arbitrage” strategy: buy spot and short the perpetual when funding is strongly positive, collecting the payments while remaining market-neutral.
Funding Rate vs. Other Fees
It is important to distinguish funding from trading fees. Trading fees are charged by the exchange when you open or close a position. Funding is a peer-to-peer transfer—the exchange only facilitates the calculation and settlement. A comparison table clarifies this:
| Feature | Trading Fee | Funding Rate |
|---------|-------------|--------------|
| Paid to | Exchange | Opposite side of the trade |
| Timing | On order execution | Every 8 hours (or per exchange schedule) |
| Purpose | Exchange revenue | Price alignment |
| Volatility | Fixed percentage | Variable, based on premium |
On Bitget, you pay a taker/maker fee when you trade, but funding payments go to other traders. Ignoring this distinction leads to confusion when reviewing your PnL statement.
Key Takeaways for LeverageLadder Futures Readers
Funding rates are a built-in cost of perpetual leverage, not a hidden fee. Check the current rate before opening a position, plan around the 8-hour timestamps, and treat extreme funding values as a contrarian indicator. A disciplined trader who understands funding can reduce costs, capture income, and read market sentiment more accurately than someone who only watches price charts.