{"schema_version":1,"publisher":"Half on a Double","data_through":"2026-10-16","frequency":"end-of-day","methodology":"market-implied-carry-v1","generation":"market-implied-carry-analytics-20260917T000000Z","canonical_url":"https://halfonadouble.com/stock/IWB","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/IWB.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/IWB.json?date=2026-10-16&public_schema=4","definitions_url":"https://halfonadouble.com/methodology.md","license_url":"https://halfonadouble.com/terms.md","disclaimer_url":"https://halfonadouble.com/disclaimer.md","symbol":"IWB","page_tier":"B","units":{"prices":"USD per share","open_interest":"option contracts","gamma_exposure":"modeled dollar-delta change per USD 1 underlying move","gamma_exposure_normalized":"modeled gamma exposure per 100,000 open option contracts","distances":"percent of close","forward_outcomes":"close-to-close percent return"},"snapshot":{"close":416.7699890136719,"previous_close":421.3500061035156,"delta_neutral":388.4676797511101,"gamma_neutral":361.5318714929589,"gamma_max":440.11699809011554,"total_open_interest":6536,"previous_open_interest":6689,"listed_contracts":194,"listed_calls":111,"listed_puts":100,"gamma_max_distance_pct":5.601893056574615,"delta_neutral_distance_pct":-6.790870266244947,"gamma_neutral_distance_pct":-13.253861596762173,"open_interest_change_1d_pct":-2.2873374196441922,"call_open_interest":5076,"put_open_interest":1460,"put_call_open_interest_ratio":0.2876280535855004,"nearest_expiration_max_pain":340,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":-18.420229632022156,"all_expiration_max_pain":405,"net_gamma_exposure":1416150.027207584,"net_gamma_exposure_per_100k_open_interest":21666922.080899384,"gamma_exposure_flip":361.5318714929589,"gamma_exposure_flip_distance_pct":-13.253861596762173,"call_wall":450,"call_wall_distance_pct":7.973225487029498,"put_wall":395,"put_wall_distance_pct":-5.22350207249633,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2270},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":416.77,"totalOi":6702,"analysisCoverage":1,"avgIvPct":37.4,"ivRank":97.4,"iv52wHighPct":37.8,"iv52wLowPct":22.2,"frontDte":35,"termPremiumPp":0.9514,"riskReversalFrontPp":6.14,"riskReversal30dPp":6.14,"butterflyFrontPp":2.38,"butterfly30dPp":2.38,"putCallOiRatio":0.28,"putCallOiFrontRatio":0.065,"putCallVolumeFrontRatio":0,"optionVolume":11,"volumeOiRatio":0.001641,"netDeltaNormalized":0.181468,"dealerDeltaNormalized":-0.180521,"gexPer100kOi":95590690.689346,"vannaPer100kOi":6028.051328,"charmPer100kOi":-19083.855566,"weekendDeltaShiftPer100kOi":-57251.566697,"ivSurfaceRangePp":26.2,"gammaFlipDistancePct":1.703578,"maxPainDistancePct":-2.8241,"peakCallDistancePct":-12.421719,"peakPutDistancePct":-17.220529},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/IWB.json?date=2026-10-16&public_schema=4","interpretation":"Catalyst intensity ranks unusual option pricing and activity; it does not identify the event, predict direction or recommend a trade. Directional score summarizes relative positioning under documented model conventions."},"gamma_max_cross_outcomes":[],"missing_value_semantics":"null means unavailable; it never means zero","interpretation":"These are descriptive end-of-day model outputs. Signed GEX uses the published call-positive, put-negative convention and is not observed dealer inventory. None of the fields are live prices, predictions or investment advice."}