Ventuals

What is the funding rate?

The funding rate is a recurring payment between longs and shorts that keeps a perpetual future's price anchored to spot. Here's how it works, with numbers.

By Emily Hsia·Updated

A pair of brass balance scales tipped slightly to one side with stacks of silver coins on each pan — representing the recurring transfer between longs and shorts that the funding rate mediates

The funding rate is a small, recurring payment that flows directly between long and short traders on a perpetual future, paid every 1–8 hours depending on the venue. It exists for one reason: to keep a perp's price anchored to the spot index even though the contract never expires.

If you've traded a perp and watched a little debit or credit hit your margin every 8 hours, that's the funding rate. It's not a fee to the exchange — it's a transfer between traders, designed to make whichever side is crowded pay the other side to rebalance the book.

How the funding rate works

The rate is driven by the gap between the perp's market price and the spot index:

  • When the perp trades above the index — more traders want to be long than short — longs pay shorts. The rate is positive.
  • When the perp trades below the index — shorts are crowded — shorts pay longs. The rate is negative.

Venues calculate funding with a formula that combines a premium index (how far the perp is trading from spot) and a small interest-rate component (usually 0.01% per 8 hours as a baseline). In rough form:

funding rate ≈ premium + clamp(interest − premium, ±cap)

The clamp and the cap vary by venue — for example, Hyperliquid caps hourly funding at 4% and samples premium every 5 seconds. But you don't need to memorize the math to trade a perp. What matters is the direction and the size.

Cadence varies too:

  • Binance, Bybit, OKX: every 8 hours (00:00, 08:00, 16:00 UTC)
  • Hyperliquid, dYdX: every 1 hour (at 1/8 of the 8-hour rate)
  • Some venues: 4-hour schedules

You only pay or receive funding if you're holding a position at the settlement timestamp. Opening and closing between timestamps costs nothing in funding.

A worked example: what funding actually costs

The easiest way to understand funding is to put real numbers on it.

Imagine you hold a $10,000 long on a perp with baseline funding of 0.01% per 8 hours — roughly the long-run average on major crypto perps during balanced conditions.

  • Per settlement (8h): $10,000 × 0.0001 = $1.00 paid to shorts
  • Per day (3 settlements): $3.00
  • Per week: $21.00
  • Per month (~30 days): $90.00 (about 0.9% of notional)
  • Annualized: 0.01% × 3 × 365 ≈ 10.95%

If the rate were negative at the same magnitude, you'd receive those same amounts as a long. Funding is symmetric — whichever side is crowded pays whichever side isn't.

Now flip it: a $10,000 short pays the long when funding is positive, and collects from the long when funding is negative.

Funding and leverage

Here's the part most funding-rate explainers skip: funding is calculated on your notional position size, not your posted margin. That's fine at 1x leverage, but once you lever up, the funding cost as a percentage of your margin scales linearly.

Same 0.01% per 8h baseline, same $1,000 of posted margin, different leverage:

LeverageNotionalFunding / 8hFunding / dayAnnualized on margin
1x$1,000$0.10$0.30~11%
2x$2,000$0.20$0.60~22%
5x$5,000$0.50$1.50~55%
10x$10,000$1.00$3.00~110%
20x$20,000$2.00$6.00~220%
50x$50,000$5.00$15.00~550%

A 10x long at an innocuous-looking 0.01% / 8h is bleeding roughly 110% per year against posted margin. That's why traders who hold leveraged perps through a long rally often end up underwater on funding even when the underlying moves in their direction.

When funding gets extreme

Baseline funding is small. Extreme funding is not.

On one-sided crypto markets during sharp rallies, annualized funding has repeatedly exceeded 100% per year, and at peaks has briefly touched the multiple-hundreds-of-percent range. The mechanism is self-reinforcing: if the perp is trading 1% above spot and funding is recalculating every hour, longs get charged aggressively until enough of them close and the premium collapses.

Most venues cap the rate per period — Hyperliquid's 4% hourly cap is an example — so there is an upper bound. But even at the cap, a leveraged position held through sustained extreme funding can be wiped out from funding alone, independent of any price move in the underlying.

This is the quiet P&L drag that catches new traders off guard. Leverage amplifies funding the same way it amplifies price moves, and funding accrues continuously whether the market is moving or sitting still.

Why funding exists (and where it applies)

A traditional futures contract doesn't need funding because its price is forced to converge to spot at expiry — that's what settlement does. A perp has no expiry, so it needs a different anchor. Funding is that anchor: it makes any gap between perp and spot expensive to maintain, which pulls the two prices back together without ever closing the contract.

The mechanism was invented for Bitcoin perps in 2016 and turned out to generalize. It now anchors perpetual futures on equities, commodity indices, FX pairs, and pre-IPO company valuations on venues like Ventuals, which lists perps on companies like SpaceX and OpenAI. The cadences and caps differ, but the core idea is the same — longs pay shorts when the perp is rich, shorts pay longs when it's cheap, and the contract never has to settle.

One thing to flag: because a perp is a derivative, funding is the cost of price exposure, not ownership. You're not earning or paying a dividend; you're paying or receiving a carry to hold a view. For more on that distinction, see owning stock vs. price exposure for private companies.

The bottom line

The funding rate is the mechanism that lets a futures contract run forever without drifting from spot: a small periodic payment, paid directly between longs and shorts, that makes the crowded side bear a carrying cost until the book rebalances. At typical baselines it's a rounding error. On one-sided markets or at high leverage, it can quietly dominate a position's P&L. Either way, it's worth checking the current rate on your venue before you size up.

Ready to see funding rates on pre-IPO company perps? Start on Ventuals.

This article is for general informational purposes only and is not financial advice. It is not a recommendation or offer to buy, sell, or invest in any security, asset, or product. Always do your own research and consult qualified professional advisors before making investment decisions.

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