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updated —SPY Funding Arbitrage Backtester
Size per leg$
R-trip cost
on +$10000.00 per leg · +$20000.00 turnover · funding covers it in ~48d
Funding ArbitrageLooking at price convergence? → /price-pair
Current Net APR · Snapshot
+1.38%
3d Period Avg+8.27%
swing±12.47%
LONG Pionex · nowSPYX_USDT_PERP
−1.38%
3d avg:+4.55%
SHORT Aster · now
+0.00%
3d avg:+12.82%
Entry Spread Now
+0.022%
Eaten by executionL 752.0100 · S 752.1741+$2.18 if it converges
24h range −0.16%…+0.12% · median +0.02%
Long pays every8hShort pays every8h
LONGmaker0.020%/taker0.050%SHORTmaker0.010%/taker0.040%
Loading Funding History…
↗Total PnL
−$11.33
−0.11%
$Avg Daily PnL
+$2.27
+0.0227%
★Best Day
+$3.15
Nov 14
◎Open Interest
Pionex$1.26M
Aster$952.6K⚡Funding APR
+8.27%
annualized · funding only
⚠Execution Cost
−$18.13
entry + exit fees
⏱Payback
8.0d
to break even
◧24h Volume
Pionex$1.85MAster$874.5KLoading Cumulative PnL…
How it works: Funding PnL is bucketed daily from real settlement history. Execution Cost = round-trip taker fees + fees only (orderbook snapshot stale) on both legs (−$18.13 for size $10,000). Slippage scales nonlinearly with position size — try a larger size to see thin upper levels run out.