What is funding rate arbitrage on Hyperliquid?
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Funding rate arbitrage is the trade of holding a hedged position — long on one venue, short on another (or short the perp and long the spot) — to capture the difference in funding rates between the two legs. On Hyperliquid, because perp funding and positions are public on-chain, you can see the spread and the size of the carry before you put the trade on.
How the trade is built
The basic shape is: take opposite positions in the same market on two venues so that net directional exposure is zero, and earn the funding differential. For example, if a perp pays longs a high positive funding on venue A and charges longs a lower rate on venue B, you go long on A and short on B. The price moves cancel out; the funding differential is the carry.
The costs that decide whether the spread is real
A headline funding spread is gross, not net. Before treating it as edge, subtract:
- Trading fees on both entry and exit on both legs — two round trips can eat a small funding spread entirely.
- Borrow or collateral cost for the capital sitting on each venue, especially if one leg is spot and needs to be held somewhere that pays less than the funding earns.
- Liquidation buffer. Even a hedged position can be liquidated on one leg if price moves hard against that leg before the other leg catches up; you need to keep margin on both sides.
Where it tends to break
Funding arbitrage looks like free money until the spread closes while you are still in the trade — the rate you were capturing compresses to zero and you are left paying fees to exit. It also breaks when one venue's funding flips sign unexpectedly, turning income into a cost. Treat the spread as a temporary carry that you monitor, not a permanent yield.
FAQ
- Is funding rate arbitrage risk-free?
- No. It is directionally hedged, so it is not exposed to price moves, but it still carries execution, counterparty, liquidation, and basis risk. "Market-neutral" is not the same as "risk-free."
- Why does the funding spread between venues exist?
- Different venues have different participant mixes, collateral, and leverage, so the same market can price different funding rates. The spread persists until enough capital moves to close it.
- Do I need the same position size on both sides?
- Yes, the two legs must be size-matched in notional for the position to be delta-neutral. A mismatch leaves a directional exposure that can swamp the funding income.