On VIX>28 days the SPY intraday range medians 2.20% and QQQ 2.73% — 3x calm-tape behaviour. We don't trade risk-off by cutting size; we reprice volatility, ETF volume, and quote stability and let those decide the route.

SPY 1-minute volume averages 251K shares at 09:30 and 277K at 15:55 — but only 57K at 12:30. Volume and range concentrate at open and close, and that's exactly where manual route control matters most. Smart routers work the middle.

Mid-size morning drives in US equities reverse during lunch 61–67% of the time; strong drives consolidate instead. The asymmetry is driven by dealer gamma, not coincidence — and the right play depends on which side you're on.

σ-distance from VWAP at 10:30 ET is the cleanest single-checkpoint probability gauge we've found for end-of-day side. Above +2σ closes above VWAP 78% of the time; the cone tightens cleanly through the day.

When pre-market range expansion runs 2.8×–4.5× normal with a clear direction, the first cash-session hour extends that direction 70% of the time. Compressed pre-markets carry no edge. The signal is range × direction, not volume.

VIX-implied exhaustion walls: SPY closes inside its VIX/√252 implied range on 76-95% of normal-VIX days. The wall acts as soft resistance to extension — but it breaks down at VIX >24 where realized range exceeds implied. Different regimes, different sizing.

VIX term structure: contango (VIX3M > VIX) observed on 94% of sessions 2022-2026; backwardation on the 6% that mark stress regimes. Trend continuation works in contango; mean reversion outperforms in backwardation. Same setups, opposite expected values.