XLB

Puts are the richer wing (positive 25Δ RR); stretched vs its 180-day baseline.

Persistent, non-event bid — the current structural skew regime.

ρ confirms — vol moves with spot as the skew implies.

Rich vs baseline: fade or finance the expensive wing via defined-risk structures.

RICH sector_etf bucket separated -13.7%/20d (survived the per-quarter catastrophic gate);

borrow normal today (point-in-time borrow history unavailable — borrow-clean subset is approximate, so this is a tilt, not a forecast); current regime LOW