vike-perp-spread-arblisted

# vike-perp-spread-arb ## Command ```bash vike perp spreads --json # full matrix, all symbols with spread >= 0.5% vike perp spreads --symbol BTC --json # one specific symbol ``` ## Output Pre-ranked rows: `symbol`, `buy_exchange`, `buy_price`, `sell_exchange`, `sell_price`, `spread_pct`. Outliers (> 400 bps off the cross-venue median) are filtered upstream — typically these are unit-mismatch listings like `1000SHIB` vs `SHIB`, or stale prices. ## Reading `spread_pct = 0.7%` on a liquid pair = real arb opportunity, **before fees + transfer time**. Realistic net edge: - 30-60 bps after taker fees - Cross-venue settlement adds latency — fast inventory rotation matters more than per-trade size - Always check `vike-perp-funding-arb` for the same symbol — funding can amplify or kill the trade economics ## Anti-patterns - Quoting a spread as "free money" without mentioning fees / transfer time - Trading 1000-token-suffix pairs without normalizing — `1000PEPE` on Binance ≠ `PEPE` on Bybit; if the spread looks insane it's probably this - Treating the buy/sell exchanges as static — the spreads update minute-by-minute; the row you see is current snapshot, not forecast ## Pairs well with - `vike-perp-funding-arb` (combine for the full carry picture) - `vike-cross-venue-perps` for one-symbol depth