Funding Rate

The funding rate is a periodic payment between traders holding long perpetual futures positions and traders holding short perpetual futures positions. It exists to keep the perpetual price tethered to the spot price of the underlying asset, since perpetual contracts (unlike traditional futures) never expire. On Hex37, funding settles every 8 hours at 00:00, 08:00, and 16:00 UTC, using the actual Binance perpetual funding rate for that instrument.

Why funding rates exist

A perpetual futures contract is an agreement to buy or sell an asset at any time, with no expiration date. Without a mechanism to keep the contract price close to the spot price of the underlying asset, the two would drift arbitrarily far apart. Funding solves this by creating a financial incentive to bring them back together: when the perpetual trades at a premium to spot (more longs than shorts), longs pay shorts, which discourages going long and encourages going short, pushing the perpetual price down toward spot. When the perpetual trades at a discount, the flow reverses.

How funding is calculated

The funding rate is usually a small percentage (often between -0.1% and +0.1% per 8-hour window). It is applied to the notional value of your position, not your margin. A 0.05% funding rate on a $10,000 long means the long pays $5 to the short side at the funding settlement. Funding accrues continuously during the 8-hour window and settles at the boundary; on Hex37, you see the running funding cost on every open position in real time.

What funding costs over time

Funding is the hidden cost most simulators omit and most live traders underestimate. In aggressive bull regimes, BTC perpetual funding can run 0.05% to 0.1% every 8 hours, which compounds to roughly 0.15% to 0.3% per day. On a long held for a week, that is a 1% to 2% drag against your thesis, enough to flip a winning trade into a flat one. SOL funding can run double or triple BTC's during sentiment-driven runs; meme coin funding can run higher still.

How to manage funding

• Check the current funding rate before entering a perpetual position. The Hex37 trade workspace shows it live next to the order form.
• If funding is sharply against your intended direction, the market is telling you the crowd is positioned the other way. That is a real signal, not just a cost.
• For long holds, consider whether spot is the better instrument. Spot has no funding.
• Do not hold leveraged perpetual positions through funding windows out of habit. Each window is a 0.05% to 0.1% bet that the move has not already happened.
• Use the position sizer to size with funding cost factored in for multi-day holds.