{"schemaVersion":1,"symbol":"SIL","days":90,"observations":[{"symbol":"SIL","expiry":"2026-11-20","observed_at":"2026-10-22T15:41:31.863000+00:00","captured_at":"2026-10-22T15:48:40.663Z","last_trade_at":"2026-10-22T15:48:36.17855061Z","price":76.57,"iv_pct":47.62857208260666,"implied_move_pct":11.07193324015787,"put_call_skew_pp":-0.7348729840834844,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/SIL","source_hash":"f88b4435d641821df11cec4ad512189a88ec7b1c1004b898a7e10fef8b8e3276"},{"symbol":"SIL","expiry":"2026-11-20","observed_at":"2026-10-22T19:55:03.173000+00:00","captured_at":"2026-10-23T00:17:42.435Z","last_trade_at":"2026-10-23T00:00:00.176448725Z","price":75.99,"iv_pct":48.56218444561219,"implied_move_pct":11.194008227843678,"put_call_skew_pp":-1.0069168474331203,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/SIL","source_hash":"2898b354f7cb10568e2e364de9f3f9d6364157ff8d0d41e9d6b54218b7fad745"}],"dailyIv":[],"dailyIvModel":"theta-four-listed-fridays-50delta-v2","truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/SIL","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"}}