# B funding rates and arbitrage

Updated 2026-10-29 16:59 UTC · https://afterfees.xyz/coin/B

## Best B arbitrage after every cost

No B pair nets a profit at this size right now.

_At $10,000 per side, held 7 days, after taker fees, order-book slippage and carry._

## B funding rate on every exchange

| Exchange | Contract | Rate | Every | Annualised | Settled 7d, annualised | Open interest | Next settlement |
|---|---|---|---|---|---|---|---|
| [Aster](https://afterfees.xyz/venues/aster) | BUSDT | 0.0350% | 4 h | +76.8% | +50.5% | $708.6K | 2026-10-29 20:00 |
| [BingX](https://afterfees.xyz/venues/bingx) | B-USDT | 0.0141% | 4 h | +30.9% | +19.8% | $1.1M | 2026-10-29 20:00 |
| [Bybit](https://afterfees.xyz/venues/bybit) | BUSDT | 0.0116% | 4 h | +25.4% | +19.2% | $765.6K | 2026-10-29 20:00 |
| [BloFin](https://afterfees.xyz/venues/blofin) | B-USDT | 0.0072% | 4 h | +15.8% | +13.6% | $395.2K | 2026-10-29 20:00 |
| [Extended](https://afterfees.xyz/venues/extended) | B-USD | 0.0017% | 1 h | +14.9% | +12.6% | $12.7K | 2026-10-29 18:00 |
| [LBank](https://afterfees.xyz/venues/lbank) | BUSDT | 0.0067% | 4 h | +14.7% | — | — | 2026-10-29 20:00 |
| [MEXC](https://afterfees.xyz/venues/mexc) | B_USDT | 0.0067% | 4 h | +14.7% | +12.7% | $994.5K | 2026-10-29 20:00 |
| [Binance](https://afterfees.xyz/venues/binance) | BUSDT | 0.0065% | 4 h | +14.3% | +12.7% | $7.7M | 2026-10-29 20:00 |
| [KuCoin](https://afterfees.xyz/venues/kucoin) | BUSDTM | 0.0050% | 4 h | +10.9% | +5.8% | $662.8K | 2026-10-29 20:00 |
| [Bitunix](https://afterfees.xyz/venues/bitunix) | BUSDT | 0.0050% | 4 h | +10.9% | +12.7% | — | 2026-10-29 20:00 |
| [Bitget](https://afterfees.xyz/venues/bitget) | BUSDT | 0.0050% | 4 h | +10.9% | +11.1% | $1.8M | 2026-10-29 20:00 |
| [Gate](https://afterfees.xyz/venues/gate) | B_USDT | 0.0050% | 4 h | +10.9% | +11.1% | $949.7K | 2026-10-29 20:00 |
| [BingX](https://afterfees.xyz/venues/bingx) | NCSKB2USD-USDT | 0.0040% | 8 h | +4.4% | +4.6% | $914.6K | 2026-10-30 00:00 |
| [QFEX](https://afterfees.xyz/venues/qfex) | B-USD | 0.0000% | 1 h | 0.0% | — | $1.6M | 2026-10-29 18:00 |

## Borrow B to sell spot

| Exchange | Borrow APR | Per-account limit |
|---|---|---|
| Gate | 5.18% | $30K |

## Cost to enter $10,000 of B

| Exchange | Contract | Fee + slippage | Source |
|---|---|---|---|
| MEXC | B_USDT | 5.6 bp | top of book only |
| Binance | BUSDT | 8.6 bp | top of book only |
| BingX | B-USDT | 8.6 bp | top of book only |
| Extended | B-USD | 8.7 bp | top of book only |
| BingX | NCSKB2USD-USDT | 10.2 bp | top of book only |
| Gate | B_USDT | 11.2 bp | top of book only |
| Aster | BUSDT | 11.3 bp | top of book only |
| BloFin | B-USDT | 13.3 bp | top of book only |
| Bitget | BUSDT | 13.3 bp | top of book only |
| Bitget | BUSDT (spot) | 16.2 bp | top of book only |
| Bybit | BUSDT | 20.8 bp | top of book only |
| Gate | B_USDT (spot) | 21.5 bp | top of book only |

_Taker fee plus slippage of a market buy of $10,000 from the mid price, at standard (VIP0) fees._

## More on B

- [Borrow B: rates on every exchange](https://afterfees.xyz/borrow/B)

## Questions

**Is B funding-rate arbitrage profitable right now?**

Not at $10,000 per side for 7 days: no B pair shows a verified profit after fees and order-book slippage right now. Rates change every hour; the live page re-ranks continuously.

**Which exchange has the highest B funding rate?**

Aster at +76.8% a year (0.0350% every 4 h); the lowest is QFEX at 0.0%. A positive rate is paid by longs to shorts, a negative one by shorts to longs.

_The method behind every number on AfterFees is published; Pro opens each figure into its line-by-line calculation. Estimates from current data, not investment advice. We never hold funds or trade for you._