{"schemaVersion":1,"symbol":"ECG","days":90,"observations":[{"symbol":"ECG","expiry":"2026-11-20","observed_at":"2026-10-21T19:59:10.553000+00:00","captured_at":"2026-10-22T04:10:39.332Z","last_trade_at":"2026-10-21T23:00:00.002539489Z","price":106,"iv_pct":71.61925453341061,"implied_move_pct":16.46445315961127,"put_call_skew_pp":5.583700166908379,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/ECG","source_hash":"82e746dbec2e09baf1ba88569f5c77d8b2eebd00e284cd8b009fa17dbd974f15"},{"symbol":"ECG","expiry":"2026-11-20","observed_at":"2026-10-22T17:34:48.457000+00:00","captured_at":"2026-10-22T17:43:26.215Z","last_trade_at":"2026-10-22T17:42:49.341958529Z","price":95.96,"iv_pct":72.70279426758808,"implied_move_pct":16.523107344347295,"put_call_skew_pp":-4.604349442379185,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/ECG","source_hash":"74a7c06120d679557827eb0a32ed60532a0d5f8a22aa2df554299ecf71cb2e46"}],"dailyIv":[{"symbol":"ECG","date":"2026-10-20","iv_pct":61.413885870367295,"model_version":"theta-four-listed-fridays-50delta-v2","expiries":[{"expiry":"2026-11-20","call_iv_pct":68.45117234468938,"put_iv_pct":67.83823845327605},{"expiry":"2026-12-18","call_iv_pct":59.16182608695652,"put_iv_pct":59.14453265044814},{"expiry":"2027-02-19","call_iv_pct":57.5757495256167,"put_iv_pct":58.058296703296705},{"expiry":"2027-05-21","call_iv_pct":60.63596685082874,"put_iv_pct":60.44530434782608}],"source":"ThetaData EOD Greeks","provider_symbol":"ECG","calendar_adjustments":[],"calendar_source":"ThetaData year_holidays","source_hash":"e8550fdf96752ecb7cadecf0148662103c888700bddb37fc2d7f9689aae35762","captured_at":"2026-10-22T15:55:46.923876+00:00"},{"symbol":"ECG","date":"2026-10-21","iv_pct":62.5652951486324,"model_version":"theta-four-listed-fridays-50delta-v2","expiries":[{"expiry":"2026-11-20","call_iv_pct":69.48024757804092,"put_iv_pct":71.35003300330034},{"expiry":"2026-12-18","call_iv_pct":61.352543046357624,"put_iv_pct":62.68300411522634},{"expiry":"2027-02-19","call_iv_pct":57.09238532110091,"put_iv_pct":58.150444015444016},{"expiry":"2027-05-21","call_iv_pct":59.92290410958905,"put_iv_pct":60.4908}],"source":"ThetaData EOD Greeks","provider_symbol":"ECG","calendar_adjustments":[],"calendar_source":"ThetaData year_holidays","source_hash":"358454b75cadba58ffb4e7d344ab570b8f4ec3151c67b0f3a2a8218a7a98d720","captured_at":"2026-10-22T15:55:45.158284+00:00"}],"dailyIvModel":"theta-four-listed-fridays-50delta-v2","truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/ECG","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"}}