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updated —SPACEX Funding Arbitrage Backtester
Size per leg$
R-trip cost
on +$10000.00 per leg · +$20000.00 turnover · funding covers it in ~27d
Funding ArbitrageLooking at price convergence? → /price-pair
Current Net APR · Snapshot
+3.51%
7d Period Avg+7.63%
swing±8.08%
LONG QFEX · nowSPCX-USD
+0.00%
7d avg:−0.44%
SHORT Lighter Robinhood · nowSPCX-USDG
+3.51%
7d avg:+7.19%
Entry Spread Now
+0.051%
In your favorL ask 135.9700 · S bid 136.0400+$5.15 at entry
24h range −0.19%…+0.31% · median +0.02%
Long pays every1hShort pays every1h
LONGmaker0.050%/taker0.100%SHORTmaker0%/taker0%
Loading Funding History…
↗Total PnL
−$11.01
−0.11%
$Avg Daily PnL
+$2.09
+0.0209%
★Best Day
+$3.97
Nov 12
◎Open Interest
QFEX$1.51M
Lighter Robinhood$4.46M⚡Funding APR
+7.63%
annualized · funding only
⚠Execution Cost
−$25.63
entry + exit fees
⏱Payback
12.3d
to break even
◧24h Volume
QFEX$6.07MLighter Robinhood$6.72MLoading Cumulative PnL…
How it works: Funding PnL is bucketed daily from real settlement history. Execution Cost = round-trip taker fees + live L2 orderbook slippage on both legs (−$25.63 for size $10,000). Slippage scales nonlinearly with position size — try a larger size to see thin upper levels run out.