ojy
e2eca5ef66
IV Rank shows where current ATM IV sits in its 1-year (min, max) range from saved snapshot history. The industry-standard entry metric: >=60 = expensive (sell premium), <=30 = cheap (buy premium). Also exposes IV Percentile (share of past snapshots with strictly lower IV) via the tooltip. - snapshots.ts: new getIvRange + getIvPercentile queries with a min-samples gate so the metric is hidden until n>=5 - datafetch.ts: ScanResult gains ivRank, ivPercentile, ivRankN, ivRankSpanDays - options.ts: error stub updated with new fields - scanner.html: new sortable IV Rank column with chip-styled color coding (green/grey/yellow/red); summary row gains a "High IV Rank (>=60)" count card; header text explains the new metric and the >=60 / <=30 entry rule of thumb Live INTC scan: IV Rank 100 (1-year peak) confirms the position's short-premium structure was entered into expensive vol - mean-reversion tailwind is the edge. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>