A funding rate is a periodic payment exchanged between long and short traders in a perpetual futures market. When longs dominate, longs pay shorts. When shorts dominate, shorts pay longs.
It exists for one purpose: to keep the perpetual futures price anchored to the underlying spot price.
Why Perpetual Futures Need a Funding Rate
Perpetual futures — "perps" — have no expiry date. That's their core feature, but it creates a problem: without a settlement date forcing convergence, a perp price can drift indefinitely away from spot.
A standard futures contract solves this through expiry — the contract settles at the spot price on a fixed date, so the two prices must converge. A perpetual has no expiry, so a different mechanism is needed.
The funding rate is that mechanism.
When buying pressure pushes the perp price above spot, a positive funding rate kicks in: long traders pay short traders a periodic fee. This raises the cost of holding longs and rewards the short side, drawing more short interest into the market until the perp price drifts back toward spot.
When selling pressure pushes the perp price below spot, the rate turns negative: short traders pay longs. Same logic in reverse.
The rate isn't fixed — it scales with the size of the imbalance. A small premium produces a gentle correction; a large premium produces a stronger one.
What Funding Rates Actually Cost You
Funding fees accumulate while your position is open and are settled when you close. The cost depends on your position size, the current rate, and how long you hold.
A few things worth knowing before you enter:
Check the current rate. A high positive rate means longs are paying right now. If you're planning to go long and hold for days, you're walking into an ongoing cost. If you're going short into elevated positive funding, you're collecting it.
Rates change. The rate at entry is not the rate you'll pay throughout the trade. As open interest shifts, the rate adjusts — sometimes sharply. A trade that looks cheap to hold can become expensive if sentiment moves toward your side.
Duration multiplies the cost. Funding is a time-weighted expense. A multi-week hold at elevated rates can cost more than your opening and closing fees combined. This matters most for swing positions and anything held over multiple funding periods.
How to Read Funding Rates as a Market Signal
Beyond cost management, funding rates are one of the clearest real-time indicators of market positioning — how crowded a trade is, and in which direction.
High positive funding means long open interest significantly outweighs short. The market is leaning heavily long. This isn't inherently bearish — markets can stay crowded in one direction during strong trends — but it does mean:
- You're paying a premium to hold long exposure
- If sentiment flips, the unwind tends to be fast and disorderly
- The more crowded the positioning, the harder the flush when it comes
High negative funding (shorts paying longs) signals crowded short positioning. These conditions often precede sharp short squeezes, especially when open interest is high and the market has been leaning one way for an extended period.
Rate near zero means long and short open interest are roughly balanced. No strong directional consensus. Lower cost to hold either side.
Funding rates are one input in a broader market read — not a standalone signal, but context that changes the risk/reward of any position. A technically valid trade looks different when you're entering into heavily crowded positioning.
Funding Rate and Open Interest: Reading Them Together
The funding rate tells you the direction of the imbalance and what it's costing to hold. Open interest tells you the size of that imbalance — how much capital is deployed.
| Funding | OI | What it suggests |
|---|---|---|
| High positive, rising | Rising | Crowded long; unwind risk growing |
| High positive, falling | Falling | Long deleveraging underway |
| High negative, rising | Rising | Crowded short; squeeze risk growing |
| Near zero | Any | Balanced positioning; lower directional signal |
The most extreme risk conditions typically show high funding and high OI on the same side. When both compress together, it often signals a flush has happened or is happening.
How LeverUp's Funding Rate Works
On LP-pool perp DEXes, the funding rate structure has to account for LP incentives embedded in how the rate is calibrated. LeverUp's protocol-managed virtual liquidity architecture removes the LP layer entirely — there are no external liquidity providers to compensate.
As a result, LeverUp's funding rate has one job: reflect the actual imbalance between long and short open interest. The rate scales with the size of that imbalance, incorporates historical volatility as a baseline (higher-volatility assets carry a higher base rate), and compresses as OI moves toward balance.
LeverUp also runs a cubic OI funding model that meaningfully reduces funding signals under normal market conditions compared to a linear model — without removing the protocol's ability to respond to severe imbalances. For traders holding positions across multiple funding periods, this translates to lower cumulative funding drag in balanced or moderately skewed markets.
Read how the cubic OI model works →
On LeverUp, holding fees and funding fees are combined and displayed as a single "Holding Fee" in the trading interface. The full rate breakdown is in the docs.
Frequently Asked Questions
What is a funding rate in simple terms? It's a periodic fee paid between long and short traders in a perpetual futures market. If there are more longs than shorts, longs pay shorts. If there are more shorts than longs, shorts pay longs. The payment keeps the perp price from drifting too far from the underlying spot price.
How often is the funding rate paid? Frequency varies by venue. On most perp DEXes, funding accumulates continuously and is settled when you close your position rather than at fixed intervals.
Is a high funding rate bullish or bearish? A high positive funding rate means longs are paying shorts — indicating crowded long positioning. It's not inherently bearish, but it does mean the market has strong directional consensus and there's a cost to holding longs. When that consensus breaks, the unwind can be sharp.
What happens if funding rate goes negative? Negative funding means shorts are paying longs. This occurs when the perp price trades below spot — usually during bearish sentiment and crowded short positioning. If you're long during negative funding, you're being paid to hold.
Does leverage affect how much funding I pay? Yes. Funding is calculated on your notional position size (collateral × leverage), not just your collateral. A $100 deposit at 50x leverage pays funding as if it were a $5,000 position.
Can I profit from the funding rate alone? Some traders run delta-neutral strategies — holding long perps and short spot (or vice versa) to collect funding without directional exposure. This works when rates are high and sustained, but carries its own risks around execution, basis risk, and sudden rate changes.
Where to Go From Here
Funding rates make most sense read alongside open interest. For a complete picture of how positioning data works in perp markets: What Is Open Interest in Crypto? →
For new traders who haven't opened their first position yet: What Are Perpetual Futures? →
Trade perpetuals on LeverUp: app.leverup.xyz