{"schemaVersion":1,"symbol":"IOSP","days":90,"observations":[{"symbol":"IOSP","expiry":"2026-11-20","observed_at":"2026-10-22T19:55:02.578000+00:00","captured_at":"2026-10-22T20:44:47.811Z","last_trade_at":"2026-10-22T20:00:04.887042586Z","price":98.67,"iv_pct":29.17027885962331,"implied_move_pct":6.702716812435466,"put_call_skew_pp":-11.115665886175009,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/IOSP","source_hash":"b46b6fbb2efdbeb6e2702bfe572802341fe90416496f1285218f1240d4f5b185"}],"dailyIv":[],"dailyIvModel":"theta-four-listed-fridays-50delta-v2","truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/IOSP","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"}}