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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 ~14d
Funding ArbitrageLooking at price convergence? → /price-pair
Current Net APR · Snapshot
+5.48%
7d Period Avg+10.06%
swing±14.72%
LONG Variational · nowSPCX
+0.00%
7d avg:+4.84%
SHORT Phemex · nowSPCXUSDT
+5.48%
7d avg:+14.90%
Entry Spread Now
+0.103%
In your favorL ask 135.9500 · S bid 136.0900+$10.30 at entry
24h range −0.45%…+0.78% · median +0.08%
Long pays every8hShort pays every8h
LONGmaker0%/taker0%SHORTmaker0.010%/taker0.060%
Loading Funding History…
↗Total PnL
−$1.09
−0.01%
$Avg Daily PnL
+$2.75
+0.0275%
★Best Day
+$6.29
Nov 10
◎Open Interest
Variational$4.31M
Phemex$2.48M⚡Funding APR
+10.05%
annualized · funding only
⚠Execution Cost
−$20.37
entry + exit fees
⏱Payback
7.4d
to break even
◧24h Volume
Variational$3.22MPhemex$20.60MLoading 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 (−$20.37 for size $10,000). Slippage scales nonlinearly with position size — try a larger size to see thin upper levels run out.