BackPack vs Lighter Funding Arbitrage
27 shared markets · net of estimated fees · updated every few minutes
BackPack and Lighter both quote 27 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 right now is MET — long Lighter / short BackPack at 138.0% net APR — but the median across all shared markets is 26.5%, which is the number worth planning around.
BackPack / Lighter spreads by market
top 25 by net APR| Market | Long | Short | Gross APR | Net APR | 7d avg | 24h vol · lower leg |
|---|---|---|---|---|---|---|
| MET | Lighter | BackPack | 142.8% | 138.0% | +84.2% | $60K |
| CHIP | Lighter | BackPack | 133.0% | 127.0% | -18.6% | $96K |
| STABLE | Lighter | BackPack | 133.2% | 126.2% | +18.2% | $11K |
| 0G | BackPack | Lighter | 126.1% | 120.7% | -1.4% | $46K |
| EDGE | Lighter | BackPack | 117.5% | 111.6% | +27.3% | $153K |
| MNT | Lighter | BackPack | 88.3% | 84.4% | -14.3% | $38K |
| JTO | Lighter | BackPack | 75.0% | 72.2% | +15.2% | $105K |
| ZORA | BackPack | Lighter | 61.7% | 56.9% | +25.4% | $169K |
| STRK | BackPack | Lighter | 49.9% | 45.0% | +40.5% | $24K |
| SKR | BackPack | Lighter | 47.4% | 43.4% | +19.4% | $256K |
| LDO | BackPack | Lighter | 42.6% | 39.1% | +13.1% | $79K |
| PENGU | Lighter | BackPack | 37.2% | 33.0% | +9.5% | $39K |
| NEAR | BackPack | Lighter | 31.0% | 27.7% | -15.6% | $451K |
| WLFI | Lighter | BackPack | 30.1% | 26.5% | -25.3% | $17K |
| MEGA | Lighter | BackPack | 30.3% | 23.6% | +27.0% | $11K |
| ADA | BackPack | Lighter | 25.4% | 23.2% | -3.9% | $207K |
| UNI | BackPack | Lighter | 24.0% | 21.6% | +7.0% | $366K |
| AVNT | BackPack | Lighter | 23.6% | 19.0% | +12.8% | $23K |
| VVV | BackPack | Lighter | 22.3% | 18.5% | +11.5% | $70K |
| SEI | BackPack | Lighter | 16.6% | 12.7% | +52.4% | $42K |
| KAITO | BackPack | Lighter | 13.4% | 10.0% | +17.7% | $42K |
| TIA | BackPack | Lighter | 13.2% | 8.9% | +16.0% | $18K |
| FARTCOIN | BackPack | Lighter | 10.9% | 8.8% | -27.9% | $41K |
| ZRO | BackPack | Lighter | 11.5% | 8.0% | +25.9% | $257K |
| LINEA | Lighter | BackPack | 10.3% | 7.8% | +8.9% | $20K |
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.
Which venue is the long leg
The long leg is whichever venue currently prices funding lower for that market — it is a property of the market, not of the exchange, and it flips as rates move.
BackPack vs Lighter — FAQ
How many markets can you arbitrage between BackPack and Lighter?
27 perpetual markets are quoted on both BackPack and Lighter right now. 26 of them show a net spread of at least 5% APR after estimated fees, and 0 have at least $1M of 24h volume on the smaller leg.
What is the best BackPack / Lighter funding spread right now?
MET: long Lighter and short BackPack for about 138.0% net APR after estimated fees. The median across all 27 shared markets is 26.5%, so the top of the list is not typical.
Which side pays on the BackPack / Lighter pair?
It varies by market: BackPack is the long (funding-receiving) leg in 17 of the shared markets and Lighter in the other 10. The direction is set per market by which venue currently prices funding lower.
Trading the BackPack / Lighter 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. Direction risk is largely offset, and the position earns the funding difference each interval. 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. Per-market detail, including a backtest, is on each market's funding page; the full calculation is in the methodology.
Venue detail: BackPack funding rates · Lighter funding rates
Related exchange pairs
Coverage note: BackPack and Lighter share 27 markets, 0 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.