Binance vs Ostium Funding Arbitrage
7 shared markets · net of estimated fees · updated every few minutesBinance and Ostium both quote 7 of the same perpetual markets, so a delta-neutral position can be split across the two and collect the difference in their funding. The widest spread on a market with real depth is TRX — long Binance / short Ostium at 9.3% net APR — but the median across all shared markets is 2.2%, which is the number worth planning around.
The long leg is whichever venue prices funding lower for that market. It is a property of the MARKET, not of the exchange, and it flips as rates move: here 1 markets go long on Binance and 6 on Ostium. 1 markets clear 5% net APR, 0 clear 10%.
How this pair behaves
Binance pays funding every 4h on 253 markets and every 8h on 74 markets; Ostium pays every 1h on 57 markets. The two clocks differ, so one leg settles while the other is still accruing: a position held for only a few hours can pay one side without ever collecting from the other. Binance quotes 334 perpetual markets in total and Ostium quotes 57; the 7 they share are what this page ranks. Across its own book Binance runs a median funding rate of 10.9% and Ostium 0.0% — the two sit on opposite sides of zero, which is why this combination throws up spreads at all.
Spreads by market
top 7 of 7 by net APR| Market | Long | Short | Net APR | Gross | 7d avg | Thin leg vol |
|---|---|---|---|---|---|---|
| TRX | Binance | Ostium | 9.3% | 15.6% | +6.2% | $27.7M |
| XRP | Ostium | Binance | 4.7% | 10.9% | +7.4% | $547.3M |
| ADA | Ostium | Binance | 3.9% | 10.9% | +1.5% | $120.6M |
| SOL | Ostium | Binance | 2.2% | 8.5% | +5.1% | $1.3B |
| BTC | Ostium | Binance | 2.0% | 7.8% | +6.3% | $10.1B |
| BB | Ostium | Binance | 2.0% | 10.9% | +5.9% | $2.1M |
| LINK | Ostium | Binance | 1.9% | 8.3% | +3.9% | $89.4M |
Net APR subtracts entry and exit fees, both legs' bid/ask spread and estimated slippage from the gross funding spread. The 7-day average is historical gross funding for the same pair: a current rate close to it suggests the spread has persisted, one far above it is usually a spike that will decay.
Coverage note: Binance and Ostium share 7 markets, 7 of them with real depth — below the 10 markets / 5 liquid this page treats as full coverage, so this is a thin sample rather than a picture of the pair.
Binance vs Ostium — FAQ
How many markets can you arbitrage between Binance and Ostium?
7 perpetual markets are quoted on both Binance and Ostium right now. 1 of them show a net spread of at least 5% APR after estimated fees, and 7 have at least $1M of 24h volume on the smaller leg.
What is the best Binance / Ostium funding spread right now?
TRX: long Binance and short Ostium for about 9.3% net APR after estimated fees, counting only markets with at least $1M of 24h volume on the smaller leg. The median across all 7 shared markets is 2.2%, so the top of the list is not typical.
Which side pays on the Binance / Ostium pair?
It varies by market: Binance is the long (funding-receiving) leg in 1 of the shared markets and Ostium in the other 6. The direction is set per market by which venue currently prices funding lower.
Trading the Binance / Ostium spread
The trade is one position split across two venues: long the exchange paying the more negative funding, short the one paying the more positive, in the same size. What limits it is not the headline APR but the smaller leg's liquidity, the fees on both sides, and how long the spread survives — funding decays and flips, often within hours. Venue detail: Binance funding rates · Ostium funding rates; the full calculation is in the methodology.