Cross-venue perpetual funding spreads reach up to 0.0262% per 8 hours, altering long-term carry costs across exchanges for identical positions.
Holding a BTC long position on Bitget costs 0.0138% of notional value more per day than on Bybit due to cross-venue funding rate spreads. Perpetual futures use periodic funding cash flows to anchor contract mark prices to spot index values. When market participants skew heavily long, mark prices trade above the index, forcing long position holders to make payments to short position holders every 8 hours.
This ongoing cash transfer represents the primary cost of carry for perpetual futures exposure. Unlike fixed-expiry futures where carry is priced directly into the basis forward curve, perpetual carry fluctuates constantly across settlement intervals. A funding rate of 0.0100% per 8-hour period requires a long position holder to pay 0.0300% of open notional value daily, equivalent to an uncompounded annual carry cost of 10.95%.
Funding rates for identical trading pairs vary substantially across exchanges due to fragmented liquidity pools, local order book imbalances, and differing margin requirements.
| Asset | Lowest Funding Venue | Lowest Rate (8h) | Highest Funding Venue | Highest Rate (8h) | 8h Spread | 24h Volume |
|---|---|---|---|---|---|---|
| BTC | Bybit | +0.0054% | Bitget / MEXC | +0.0100% | 0.0046% | $7,684,837,300 |
| ETH | Bybit | +0.0039% | Bitget | +0.0100% | 0.0061% | $7,381,684,837 |
| SOL | MEXC | +0.0029% | Bitget | +0.0100% | 0.0071% | $1,577,636,994 |
| SNDK | Bitget | +0.0000% | Bybit | +0.0262% | 0.0262% | $1,277,643,778 |
| TRUMP | OKX | +0.0035% | Bitget / Bybit | +0.0050% | 0.0015% | $1,128,477,524 |
| XAU | Bitget / MEXC / OKX | +0.0000% | Bybit | +0.0077% | 0.0077% | $713,382,303 |
For BTC perpetuals, Bybit currently charges the lowest rate for long positions at +0.0054% per 8 hours, whereas Bitget and MEXC charge +0.0100%. This creates an 8-hour spread of 0.0046 percentage points, or 0.0138% per day.
The absolute widest funding spread across the sampled markets occurs in SNDK perps. Bitget offers a funding rate of +0.0000% per 8 hours, while Bybit charges +0.0262%. Long positions held on Bybit incur 0.0786% per day in carry fees, whereas identical positions on Bitget incur no funding carry cost.
Evaluating the cash flow impact requires multiplying notional position value by the venue funding rate across multiple settlement intervals. The table below outlines cumulative funding payments for holding a $100,000 notional BTC long position over 30 days, assuming rates remain constant.
| Venue | 8h Funding Rate | Payment Per Settlement (8h) | Daily Carry Cost (24h) | 30-Day Cumulative Cost |
|---|---|---|---|---|
| Bybit | +0.0054% | $5.40 | $16.20 | $486.00 |
| OKX | +0.0064% | $6.40 | $19.20 | $576.00 |
| Bitget | +0.0100% | $10.00 | $30.00 | $900.00 |
| MEXC | +0.0100% | $10.00 | $30.00 | $900.00 |
On Bybit, a $100,000 long position incurs a $5.40 charge every 8 hours ($100,000 multiplied by 0.000054). Three daily settlements aggregate to $16.20. On Bitget, the same $100,000 position incurs $10.00 every 8 hours ($100,000 multiplied by 0.000100), totaling $30.00 per day.
Holding the position for 30 days yields a cumulative funding cost of $486.00 on Bybit compared to $900.00 on Bitget. Holding the position on Bitget costs an extra $414.00 in funding expense per $100,000 of open exposure.
For altcoins with wider spreads like SNDK, a $100,000 long position on Bybit incurs $26.20 per 8 hours ($100,000 multiplied by 0.000262), totaling $78.60 daily or $2,358.00 over 30 days. The same long position on Bitget incurs $0.00 in total funding carry.
Total position expenditure equals execution fees plus cumulative funding carry. Exchange trading fee schedules impose fixed costs on entry and exit that trade off against variable carry rates.
| Exchange | Futures Maker Fee | Futures Taker Fee | Round-Trip Taker Cost ($100k) | Round-Trip Maker Cost ($100k) |
|---|---|---|---|---|
| MEXC | 0.0000% | 0.0200% | $40.00 | $0.00 |
| Bitget | 0.0200% | 0.0300% | $60.00 | $40.00 |
| OKX | 0.0200% | 0.0500% | $100.00 | $40.00 |
| Bybit | 0.0200% | 0.0550% | $110.00 | $40.00 |
Executing a $100,000 BTC long entry and exit as a taker costs $110.00 total on Bybit (0.0550% entry plus 0.0550% exit) versus $40.00 total on MEXC (0.0200% entry plus 0.0200% exit). Bybit imposes a $70.00 execution fee penalty over MEXC.
However, Bybit carries a lower daily funding cost for BTC longs ($16.20 per day) than MEXC ($30.00 per day), generating a daily funding advantage of $13.80 for Bybit.
Dividing the $70.00 execution fee gap by the $13.80 daily funding savings establishes a break-even holding duration of 5.07 days (5 days and 1.7 hours).
For holding periods under 5.07 days, lower taker execution fees make MEXC cheaper overall. For holding periods exceeding 5.07 days, lower funding rates make Bybit cheaper overall.
If entering and exiting via maker orders, Bybit incurs $40.00 in total execution fees (0.0200% entry plus 0.0200% exit) while MEXC incurs $0.00 (0.0000% maker fee). The $40.00 maker fee gap is offset by Bybit's funding savings after 2.90 days (69.6 hours) of holding time.
Short-term positions closed within single settlement windows are dictated primarily by exchange fee schedules. Long-term directional positions held over multiple weeks are dictated primarily by cross-venue funding spreads. Measuring duration against combined execution fees and daily funding rates determines the net cost of holding leverage across exchanges.
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