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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
+4.16%
3d Period Avg+14.40%
swing±29.72%
LONG QFEX · nowSPCX-USD
+0.00%
3d avg:−0.62%
SHORT Arcus · nowSPCX-USD
+4.16%
3d avg:+13.78%
Entry Spread Now
−0.081%
Against youL ask 135.9800 · S bid 135.8700−$8.09 at entry
24h range −0.37%…+0.28% · median −0.05%
Long pays every1hShort pays every1h
LONGmaker0.050%/taker0.100%SHORTmaker0%/taker0.022%
Loading Funding History…
↗Total PnL
−$18.61
−0.19%
$Avg Daily PnL
+$3.94
+0.0394%
★Best Day
+$6.50
Nov 11
◎Open Interest
QFEX$1.51M
Arcus$1.03M⚡Funding APR
+14.40%
annualized · funding only
⚠Execution Cost
−$30.44
entry + exit fees
⏱Payback
7.7d
to break even
◧24h Volume
QFEX$6.06MArcus$6.18MLoading 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 (−$30.44 for size $10,000). Slippage scales nonlinearly with position size — try a larger size to see thin upper levels run out.