{"schemaVersion":1,"symbol":"GFL","days":90,"observations":[{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T14:45:48.480000+00:00","captured_at":"2026-10-21T14:53:10.572Z","last_trade_at":"2026-10-21T14:52:40.104568673Z","price":44.1,"iv_pct":69.48475678146906,"implied_move_pct":16.122096506996584,"put_call_skew_pp":6.602371996506173,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"9599d7f92a93c36612a3c80c9b2483c5a28b184777bea4ed9f815fd89fff7117"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T14:58:38.667000+00:00","captured_at":"2026-10-21T15:08:37.342Z","last_trade_at":"2026-10-21T15:08:21.746167161Z","price":43.93,"iv_pct":67.17093635395716,"implied_move_pct":15.380564638793528,"put_call_skew_pp":3.6565036782322813,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"79217c0ed184347ffbf742e4c0e777d0252e83ffe99708b1c63c563b851bed49"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T15:17:29.289000+00:00","captured_at":"2026-10-21T15:23:02.094Z","last_trade_at":"2026-10-21T15:22:51.221785005Z","price":43.815,"iv_pct":67.94524493927125,"implied_move_pct":15.570275059241077,"put_call_skew_pp":3.3741458467503427,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"b7fb334eb8009e2725199d8e9169a18578b8dbc9147072f0cc97d440ebb0a0bd"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T15:28:36.539000+00:00","captured_at":"2026-10-21T15:39:37.322Z","last_trade_at":"2026-10-21T15:39:25.100568536Z","price":43.62,"iv_pct":70.03393740629687,"implied_move_pct":16.944416375031196,"put_call_skew_pp":3.0500027455760637,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"781028dd55ebfb43f2d3d9976fdec66ddb70f2866707a6f529b7e462f6a59469"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T15:38:19.022000+00:00","captured_at":"2026-10-21T15:53:04.495Z","last_trade_at":"2026-10-21T15:52:48.223571882Z","price":43.8,"iv_pct":59.41093173543166,"implied_move_pct":14.037508778672962,"put_call_skew_pp":2.841960024865864,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"13eeaeba26cb2582f3dcf2a658f31f7e0c94d992674da04c1b95760ecc455ed6"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T15:52:16.760000+00:00","captured_at":"2026-10-21T16:03:52.555Z","last_trade_at":"2026-10-21T16:03:43.774912513Z","price":43.71,"iv_pct":66.02890641226347,"implied_move_pct":15.854746953823934,"put_call_skew_pp":1.260847063440107,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"6b4651f83dd46eb6f66afd532cc108880adbdd73de940329ddb2729beec75a7a"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T16:03:15.962000+00:00","captured_at":"2026-10-21T16:14:10.604Z","last_trade_at":"2026-10-21T16:14:06.616079248Z","price":43.76,"iv_pct":62.207395638629315,"implied_move_pct":14.800177404933173,"put_call_skew_pp":9.805812294555793,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"57b185a381528451dfc040c5494fda73946f9d72dfb5d53d711d26df112d8bcd"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T16:14:02.135000+00:00","captured_at":"2026-10-21T16:24:20.027Z","last_trade_at":"2026-10-21T16:24:12.32192659Z","price":43.87,"iv_pct":52.56154530727956,"implied_move_pct":12.167626243183225,"put_call_skew_pp":12.666625747800374,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"1e144364816142162f88084164b784a3af43317047c0ef537b61d3aa74b93d06"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T16:22:49.080000+00:00","captured_at":"2026-10-21T16:34:36.813Z","last_trade_at":"2026-10-21T16:34:33.094887816Z","price":43.82,"iv_pct":57.59928651119273,"implied_move_pct":13.542205336522088,"put_call_skew_pp":10.73302050879985,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"fec0fedde1f8aabaf300a27dbacbad68cb2072b8816fe9b24d08d01c8ff11fb1"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T16:39:37.668000+00:00","captured_at":"2026-10-21T16:44:55.493Z","last_trade_at":"2026-10-21T16:44:49.486202157Z","price":43.9,"iv_pct":52.67707277628034,"implied_move_pct":12.131498320736302,"put_call_skew_pp":13.811332051123726,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"c57979951476e95e20a1238e9cef4d9a27d9e31597be80aef67c22fb03a955d9"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T16:46:17.452000+00:00","captured_at":"2026-10-21T16:55:11.882Z","last_trade_at":"2026-10-21T16:55:01.455649544Z","price":43.96,"iv_pct":58.24220588235295,"implied_move_pct":13.44470909382862,"put_call_skew_pp":15.671402061214135,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"7fa5338d60b0cff7c85cfcf5cbea5b1dc92feba8e641d8fadafa68286431b5a6"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T16:57:19.760000+00:00","captured_at":"2026-10-21T17:09:58.898Z","last_trade_at":"2026-10-21T17:09:49.58227523Z","price":43.91,"iv_pct":64.90644724840378,"implied_move_pct":14.998823916273643,"put_call_skew_pp":15.984455311474822,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"c185c032117c4a825f7a06794c324861ae2e1c04b8b169bdfce7cff28d22b035"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T17:11:43.495000+00:00","captured_at":"2026-10-21T17:23:59.520Z","last_trade_at":"2026-10-21T17:23:29.890808441Z","price":43.7694,"iv_pct":62.981064439946024,"implied_move_pct":14.613647132508545,"put_call_skew_pp":11.144796859803098,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"a2d61f57eeb3ccac8bdba201fc7f597053219d8438d022d40074a101d25ad4a4"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T17:19:32.346000+00:00","captured_at":"2026-10-21T17:34:27.273Z","last_trade_at":"2026-10-21T17:34:00.11489328Z","price":43.79,"iv_pct":64.3451073519844,"implied_move_pct":14.950439215496331,"put_call_skew_pp":19.198684172679016,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"290a5121f047f90fbcbb74c0db96fa7c95cf7104f83bd2e6613d0c926646b91f"},{"symbol":"GFL","expiry":"2026-11-20","observed_at":"2026-10-21T17:31:20.194000+00:00","captured_at":"2026-10-21T17:44:50.570Z","last_trade_at":"2026-10-21T17:44:27.39148752Z","price":43.78,"iv_pct":63.66751723274864,"implied_move_pct":14.787124664221556,"put_call_skew_pp":19.326546415083346,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/GFL","source_hash":"207a5f7b87c53d7c29b28839d1ded6810d86969ef8bf583a64a5567214667a71"}],"dailyIv":[{"symbol":"GFL","date":"2026-10-19","iv_pct":90.12595856738369,"model_version":"theta-four-listed-fridays-50delta-v2","expiries":[{"expiry":"2026-10-23","call_iv_pct":70.55157360406092,"put_iv_pct":85.57797570850202},{"expiry":"2026-10-30","call_iv_pct":110.24621761658028,"put_iv_pct":106.641},{"expiry":"2026-11-06","call_iv_pct":89.62725225225225,"put_iv_pct":89.13040229885057},{"expiry":"2026-11-13","call_iv_pct":83.55148235294118,"put_iv_pct":85.68176470588236}],"source":"ThetaData EOD Greeks","source_hash":"d2878cb62e7daecba2f53b0762c13d11097377d7ea0cf1a2160ab7fa4c124e84","captured_at":"2026-10-21T15:17:36.885885+00:00","migrated_from":"theta-four-listed-fridays-50delta-v1","calendar_adjustments":[],"calendar_source":"ThetaData year_holidays"},{"symbol":"GFL","date":"2026-10-20","iv_pct":91.71653296529045,"model_version":"theta-four-listed-fridays-50delta-v2","expiries":[{"expiry":"2026-10-23","call_iv_pct":87.78513572204128,"put_iv_pct":101.72205175600739},{"expiry":"2026-10-30","call_iv_pct":109.08956521739131,"put_iv_pct":106.42285714285713},{"expiry":"2026-11-06","call_iv_pct":82.85398467432951,"put_iv_pct":90.74415929203539},{"expiry":"2026-11-13","call_iv_pct":78.51554744525548,"put_iv_pct":76.59896247240619}],"source":"ThetaData EOD Greeks","source_hash":"1b17d9bfd05fdad8f38ffb73b9a54a006bda6955a78b83892dc4ab88dba78f9b","captured_at":"2026-10-21T15:17:35.211271+00:00","migrated_from":"theta-four-listed-fridays-50delta-v1","calendar_adjustments":[],"calendar_source":"ThetaData year_holidays"}],"dailyIvModel":"theta-four-listed-fridays-50delta-v2","truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/GFL","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"}}