Let’s figure out what’s really happening with these funding payments in the perpetual futures market. This is one of those things that many traders underestimate, even though it can seriously affect their results.

Perpetual futures are contracts with no expiration date, so the contract price can diverge from the asset’s true price. To keep them in sync, exchanges introduced a funding system. Essentially, it’s a mechanism where money is transferred directly between traders—those who are in long pay those who are in short, or vice versa, depending on the market situation.

How does it work? If the futures are quoted above the underlying asset, the funding is positive. This means long positions pay shorts. If the futures are below, the funding is negative, and here shorts pay longs. Settlements happen every 8 hours, so if you have an open position at the time of settlement, you’ll receive a payout or have an amount deducted.

The formula is simple: the funding amount equals the notional value of your position multiplied by the funding rate. The rate consists of two parts—a fixed interest rate (usually 0.01% for each 8-hour period) and a premium that changes depending on the misalignment between the futures and the spot. It’s the premium that’s the dynamic part, reacting to market sentiment.

Why is this important? When the market is confidently rising, most people open longs, funding rises, and long positions start paying a lot. Conversely, during a drop, funding often turns negative, and shorts pay. This creates a natural balance.

Traders who understand this mechanism use it to their advantage. For example, if there are only a few minutes left until the next settlement and the funding is positive, there’s no point in opening a long—you’d be better off waiting. On the other hand, if you planned to short, it’s better to do it at the end of the period so you get the payout right away.

There’s also a more interesting approach—funding arbitrage. A trader can simultaneously buy the asset on the spot market and sell the futures. The positions offset each other in terms of profit and loss, but the funding becomes net profit. If you manage these positions properly, you can earn income just from the difference in funding rates.

One important detail: funding is calculated based on the margin you use. With high leverage, even a funding payout can trigger liquidation of your position. But on the other hand, with a successful strategy, funding can become the main source of profit, especially on pairs that don’t move much.

Since the crypto market changes quickly, it makes sense to set up notifications for changes in funding rates. This will help you respond to new opportunities or risks faster. The key is to understand that funding isn’t just a technical detail—it’s a real source of profit or loss that you can manage through the right timing of entries and the choice of strategy.