Funding rate arbitrage is a trade built around collecting the payment described in the funding rate explained guide while holding a position that is neutral to the underlying asset's price. Instead of betting on direction, the trade profits from the recurring transfer between longs and shorts, and it is one of the more mechanical strategies available in perpetuals trading, provided every real cost involved is accounted for before entering.
The classic version of the trade holds two offsetting positions in the same asset: a long spot position and a short perpetual position of equal size, or the reverse when funding runs negative. When funding is positive, longs pay shorts, so a trader who is long spot and short the perpetual collects that payment while the two legs cancel out each other's exposure to price movement. When funding is negative, the structure flips — short spot (or simply not holding it) paired with a long perpetual collects the payment instead. In both directions, the position's profit and loss from price movement is designed to net close to zero, leaving the funding payment as the intended source of return.
The neutrality depends on the two legs actually offsetting each other, which is not automatic. The perpetual's mark price can diverge from spot even outside of funding settlement, so the hedge needs occasional rebalancing to stay tight. The bigger practical risk sits on the perpetual leg itself: because it is typically opened with margin, a large enough adverse move in the perpetual's price before the spot leg can be adjusted risks a liquidation on that side, even though the position is theoretically market-neutral on paper. A liquidation breaks the hedge entirely and can turn a funding-collection trade into a realized loss on the leveraged leg. Sizing the perpetual position with enough margin buffer, well below maximum leverage, is standard practice for exactly this reason.
Funding arbitrage is not free money the moment funding turns positive — entering and later closing both legs costs trading fees on each side, and those fees have to be cleared before the trade is profitable at all. A round trip that costs 0.14% in trading fees, for example, needs the funding collected over the holding period to exceed that figure before the position has actually made money; anything less and the trade loses even though funding was technically "collected." Canborsa's own maker and taker rate is a flat 0.07% per side, 0.14% round trip, which gives a concrete example of the kind of hurdle a trader needs to clear: with funding settling hourly, that means accumulating more than 0.14% in net funding across however many hourly intervals the position stays open before the round-trip cost is covered.
Because the spot and perpetual legs are unlikely to move in perfectly identical increments over time — deposits, withdrawals, or a partial liquidation can shift the balance — a delta-neutral position needs periodic checking to confirm the hedge ratio hasn't drifted. Each rebalancing trade carries its own fee, so the frequency of adjustment is itself a cost decision: rebalancing too often erodes the funding collected through repeated trading fees, while rebalancing too rarely leaves the position exposed to price risk it was supposed to avoid. The position sizing guide covers the general framework for deciding position size relative to available capital, which applies directly to how large a hedge leg to run.
Not every asset with a positive funding rate is worth building this trade around. Deep, liquid markets such as Bitcoin and Ethereum tend to offer lower but steadier funding, with less risk of the rate itself moving sharply against a position mid-trade. Thinner assets can occasionally show far higher headline funding, but that funding tends to be less stable and the spot leg of the hedge harder to execute at size without moving the price, which erodes exactly the edge the trade is trying to capture. Matching position size to the depth of both legs — spot and perpetual — is as important as the funding number itself.
Funding arbitrage stops working cleanly when funding compresses toward zero or flips direction faster than expected, leaving a position that was opened to collect a payment now paying it instead. It can also break down operationally: moving capital between a spot holding and a perpetual venue takes time, and during that window the hedge is incomplete. Liquidity matters as well — a large position can itself move the market it is trying to arbitrage, especially on a thinner perpetual, which is a reminder that funding arbitrage scales with available depth.
A single funding-collection trade is a tactic; running it repeatedly across multiple assets, with defined entry and exit rules for when funding is attractive enough to bother, is closer to a strategy. That systematic version, including how to combine it with pairs trading and mean-reversion ideas, is covered in the funding rate trading strategy guide .
It is a trade that holds offsetting spot and perpetual positions in the same asset to collect the funding payment while remaining neutral to price movement. A long spot plus short perpetual position collects positive funding; the reverse structure collects negative funding.
A carry trade is the general term for holding a position that earns a recurring payment for bearing a specific, hedged risk. Funding rate arbitrage is a crypto-native version of a carry trade, with the funding payment standing in for the interest-rate differential in a traditional currency carry trade.
Perpetual markets for stocks, gold, indices and pre-IPO names — settled on-chain, no wallet-to-exchange transfers.
