{"schemaVersion":1,"symbol":"ROK","days":90,"observations":[{"symbol":"ROK","expiry":"2026-11-20","observed_at":"2026-10-22T15:20:38.702000+00:00","captured_at":"2026-10-22T15:27:18.865Z","last_trade_at":"2026-10-22T15:27:17.812408174Z","price":423.74,"iv_pct":45.62548251748252,"implied_move_pct":10.362053225011643,"put_call_skew_pp":5.980457895975527,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/ROK","source_hash":"cb6a79aa23f296b6f7f4750b2df86e355696925bc05da2423041791244e9b2c2"},{"symbol":"ROK","expiry":"2026-11-20","observed_at":"2026-10-22T19:55:03.826000+00:00","captured_at":"2026-10-22T22:16:53.874Z","last_trade_at":"2026-10-22T20:10:00.001044722Z","price":423.87,"iv_pct":44.991946720108054,"implied_move_pct":10.269183844412389,"put_call_skew_pp":5.910949432404545,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/ROK","source_hash":"43c7d0fa33ff5aca381c22154b82586b1b3a5e07cebba6abddd8fc80a5597359"}],"dailyIv":[],"dailyIvModel":"theta-four-listed-fridays-50delta-v2","truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/ROK","methodology":"https://intraalpha.com/resources/options-delta-methodology","units":{"iv_pct":"annualized percent","implied_move_pct":"percent of underlying price","put_call_skew_pp":"percentage points","price":"USD"}}