{"schemaVersion":1,"symbol":"BRUN","days":90,"observations":[{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T14:39:00.192000+00:00","captured_at":"2026-10-21T14:52:33.682Z","last_trade_at":"2026-10-21T14:52:17.775417177Z","price":8.81,"iv_pct":136.2064008004574,"implied_move_pct":32.96021595606116,"put_call_skew_pp":-1.741486765112077,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"3223b18f36956a47c0dee57ab0c7378a6a3d7b4ae91e32c2afe2a63a1512cc60"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T14:55:32.046000+00:00","captured_at":"2026-10-21T15:07:45.775Z","last_trade_at":"2026-10-21T15:06:41.410675123Z","price":8.69,"iv_pct":135.0848276330411,"implied_move_pct":31.933190310377057,"put_call_skew_pp":-8.370199064279827,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"a97799666458c10ae8e75b49d93fbfa3ad20b37414374c563b9eaed18f505ccc"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T15:11:40.139000+00:00","captured_at":"2026-10-21T15:22:37.297Z","last_trade_at":"2026-10-21T15:22:12.556713525Z","price":8.57,"iv_pct":133.66599187800912,"implied_move_pct":30.894487127230374,"put_call_skew_pp":-14.592889674619647,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"af67762f717355b4475e06db50a9a2b50edbe4f787886821983275bee622b179"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T15:25:40.192000+00:00","captured_at":"2026-10-21T15:39:12.757Z","last_trade_at":"2026-10-21T15:39:05.615886979Z","price":8.68,"iv_pct":134.9608015808257,"implied_move_pct":31.84740400790888,"put_call_skew_pp":-5.534991607370499,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"548a9b9541527a2aa7716e9ac7962975f0681f4175b839211839c9d1d39e2ad8"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T15:41:43.473000+00:00","captured_at":"2026-10-21T15:52:39.912Z","last_trade_at":"2026-10-21T15:52:10.169138089Z","price":8.725,"iv_pct":135.5361272493996,"implied_move_pct":32.23244018293541,"put_call_skew_pp":-3.0558375695919127,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"802b141777a9171479700f20a3f81314a695697b1485b49aa5a905a0dfb94348"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T15:59:04.525000+00:00","captured_at":"2026-10-21T16:03:28.996Z","last_trade_at":"2026-10-21T16:02:59.57996709Z","price":8.675,"iv_pct":134.89870801896515,"implied_move_pct":31.808283386710723,"put_call_skew_pp":-5.82714698075586,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"e53c7f07fb7a391632314d49c29e96a3d1cee7554eb299350c045cc60d8a1406"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T16:03:19.039000+00:00","captured_at":"2026-10-21T16:13:48.168Z","last_trade_at":"2026-10-21T16:13:33.068251723Z","price":8.56,"iv_pct":133.5594778089424,"implied_move_pct":30.80339658179228,"put_call_skew_pp":-11.776755812960582,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"cc2eb3a6a2b91ffef18a8b6aebb9afaea773a76777475098dbda891ac84cacbd"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T16:09:15.857000+00:00","captured_at":"2026-10-21T16:23:56.976Z","last_trade_at":"2026-10-21T16:23:56.585312688Z","price":8.55,"iv_pct":133.44778973974138,"implied_move_pct":30.719045450301657,"put_call_skew_pp":-8.844136378980538,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"5fa613a2de536311546d4357d0a692c30985a63a54b5dcb439669cd39873453f"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T16:31:00.037000+00:00","captured_at":"2026-10-21T16:34:14.287Z","last_trade_at":"2026-10-21T16:34:12.581232421Z","price":8.52,"iv_pct":133.1237866401986,"implied_move_pct":30.45206924952093,"put_call_skew_pp":-10.086291402845028,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"85405fce2f7c38392edf9467368d37e00abc2b6e49ce62ab3312ab9ee5d8f8fe"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T16:39:27.236000+00:00","captured_at":"2026-10-21T16:44:33.046Z","last_trade_at":"2026-10-21T16:44:26.299461091Z","price":8.63,"iv_pct":134.35102483164982,"implied_move_pct":31.416187125153794,"put_call_skew_pp":-3.6599464285714145,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"29c3429426752d2b84d8669713cbe3f75009dbc4738512ee444edf90cdb76db8"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T16:44:38.932000+00:00","captured_at":"2026-10-21T16:54:50.087Z","last_trade_at":"2026-10-21T16:54:38.511911397Z","price":8.62,"iv_pct":134.2386660893947,"implied_move_pct":31.330278977159015,"put_call_skew_pp":-4.287589177660345,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"455637a8cfc7a0072922c46f5b79f2ec18bc5b699d82af8c7eec1ba7f9490e0a"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T16:55:11.445000+00:00","captured_at":"2026-10-21T17:09:36.730Z","last_trade_at":"2026-10-21T17:09:35.662223766Z","price":8.65,"iv_pct":134.5954553874142,"implied_move_pct":31.593459934065898,"put_call_skew_pp":-2.4147629279126726,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"5c2a2d04da6f13612918332e2f1f2678fbae6f1335bb56ac9ee24f1e7ee5c042"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T17:09:10.040000+00:00","captured_at":"2026-10-21T17:23:35.889Z","last_trade_at":"2026-10-21T17:23:25.642303863Z","price":8.645,"iv_pct":134.53559359458512,"implied_move_pct":31.54819387782468,"put_call_skew_pp":-2.7238536285066006,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"4edb64164c4797855791879e0ea62cc0d873b9e9932f4309ff6911f0cdaa1015"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T17:22:52.674000+00:00","captured_at":"2026-10-21T17:34:05.048Z","last_trade_at":"2026-10-21T17:34:02.532958007Z","price":8.59,"iv_pct":133.89203764320786,"implied_move_pct":31.069174181526492,"put_call_skew_pp":-5.768486390418648,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"7c694a390a3811f1731f36cb08c0f684056905ff316a8e61f16a8d33e23e79b6"},{"symbol":"BRUN","expiry":"2026-11-20","observed_at":"2026-10-21T17:32:18.139000+00:00","captured_at":"2026-10-21T17:44:28.163Z","last_trade_at":"2026-10-21T17:43:39.625862646Z","price":8.63,"iv_pct":134.35102483164982,"implied_move_pct":31.416187125153794,"put_call_skew_pp":-3.6599464285714145,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BRUN","source_hash":"6812b6e98743bc66f8a801f356a8803375ca8ceb135835fdd0cb466f8122b7a0"}],"dailyIv":[{"symbol":"BRUN","date":"2026-10-19","iv_pct":136.04041490900738,"model_version":"theta-four-listed-fridays-50delta-v2","expiries":[{"expiry":"2026-10-23","call_iv_pct":152.36197680062818,"put_iv_pct":136.55071399504038},{"expiry":"2026-10-30","call_iv_pct":154.7390919525571,"put_iv_pct":108.51141336193129},{"expiry":"2026-11-06","call_iv_pct":144.98141632873748,"put_iv_pct":104.36673215413772},{"expiry":"2026-11-13","call_iv_pct":160.00938096126924,"put_iv_pct":126.80259371775766}],"source":"ThetaData EOD Greeks","source_hash":"0628eae9dfedbe63c7274bdb63f374cf1419e19549e68c26fe9894dddff3421d","captured_at":"2026-10-21T15:06:39.400484+00:00","migrated_from":"theta-four-listed-fridays-50delta-v1","calendar_adjustments":[],"calendar_source":"ThetaData year_holidays"},{"symbol":"BRUN","date":"2026-10-20","iv_pct":161.14974426410953,"model_version":"theta-four-listed-fridays-50delta-v2","expiries":[{"expiry":"2026-10-23","call_iv_pct":255.20633020972775,"put_iv_pct":133.0345920894926},{"expiry":"2026-10-30","call_iv_pct":168.42628703047484,"put_iv_pct":134.59339089347077},{"expiry":"2026-11-06","call_iv_pct":171.0303715586835,"put_iv_pct":164.7400855594853},{"expiry":"2026-11-13","call_iv_pct":141.21138549031667,"put_iv_pct":120.95551128122482}],"source":"ThetaData EOD Greeks","source_hash":"c334812472559e01e5f87b6491b6b79f8f4e49e7bd1c333c972b756b83e77535","captured_at":"2026-10-21T15:06:37.545508+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/BRUN","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"}}