⛓ SPXW 0DTE Chain — strike ±10, every 30 seconds

Snapshots recorded by the poller every 30 seconds during market hours (9:30–16:00 ET). Δ5m / Δ15m / Δ30m = premium change vs the closest snapshot that far back. Green ≥ +100% marks a premium doubling — the pattern under study. Red ≤ −50% marks a premium halving. Read-only: nothing here touches orders.

← 2026-10-13 2026-10-14 → 2026-10-15 729 snapshots · as of 15:59 ET · spot 7718.805 · 5 strikes
Strike Calls Puts
bid×askmidΔ5mΔ15mΔ30m midbid×askΔ5mΔ15mΔ30m
7710 6.9×8.2 7.55 -29.4% -6.2% -8.5% 0.025 0.0×0.05 -94.1% -98.6% -99.1%
7715 3.0×3.6 3.3 -47.6% -30.5% -38.3% 0.375 0.3×0.45 -65.1% -88.8% -92.1%
7720 0.25×0.35 0.3 -89.8% -88.2% -90.8% 2.75 2.1×3.4 +0.9% -55.6% -64.1%
7725 0.0×0.05 0.025 -97.9% -98.1% -98.7% 7.75 7.1×8.4 +29.2% -20.9% -31.4%
7730 0.0×0.05 0.025 -94.1% -95.7% -97.7% 12.85 12.5×13.2 +27.9% -10.1% -17.1%