Ridgeline · Deribit
Joy
One stacked density line per expiry — strike on the x-axis, stacked top-to-bottom in nearest-first order. Reveals concentration patterns across expiries at a glance.
Each ridge is normalised to its own peak so individual shape is comparable across expiries (large near-dated OI doesn't crush the back-month ridges into invisibility). Strike band: ±25% of spot for readability. For GEX/Δ the sign is preserved — positive ridge fills above the baseline, negative below. Source: Deribit chain; math from lib/options (R25).