{"schemaVersion":1,"symbol":"ERII","days":90,"observations":[{"symbol":"ERII","expiry":"2026-11-20","observed_at":"2026-10-21T19:55:06.282000+00:00","captured_at":"2026-10-22T04:23:42.881Z","last_trade_at":"2026-10-21T23:24:19.073710898Z","price":6.6485,"iv_pct":87.96557509338676,"implied_move_pct":25.550846135872128,"put_call_skew_pp":-207.01811594716912,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/ERII","source_hash":"659147ed64a5bcb592497463b9ceaf96e06a094a9b20dbee63074b696d3a2ebd"},{"symbol":"ERII","expiry":"2026-11-20","observed_at":"2026-10-22T18:01:40.527000+00:00","captured_at":"2026-10-22T18:13:11.975Z","last_trade_at":"2026-10-22T18:12:23.010771701Z","price":6.645,"iv_pct":79.97207145021224,"implied_move_pct":23.179911700062416,"put_call_skew_pp":-135.27149974697258,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/ERII","source_hash":"3df6e5b11b4df21cdbcd6cf98600ba4a1791786c1ab877a83d5517fefe0fb303"}],"dailyIv":[],"dailyIvModel":"theta-four-listed-fridays-50delta-v2","truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/ERII","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"}}