{"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/GPIX","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GPIX.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GPIX.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":"GPIX","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":55.599998474121094,"previous_close":56.099998474121094,"delta_neutral":55.36459846261573,"gamma_neutral":55.599998474121094,"gamma_max":58.61343944170797,"total_open_interest":1627,"previous_open_interest":2067,"listed_contracts":44,"listed_calls":22,"listed_puts":22,"gamma_max_distance_pct":5.4198580041139275,"delta_neutral_distance_pct":-0.4233813272763465,"gamma_neutral_distance_pct":0,"open_interest_change_1d_pct":-21.286889211417513,"call_open_interest":957,"put_open_interest":670,"put_call_open_interest_ratio":0.7001044932079414,"nearest_expiration_max_pain":56,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":0.7194272245620404,"all_expiration_max_pain":56,"net_gamma_exposure":165972.0437779587,"net_gamma_exposure_per_100k_open_interest":10201109.021386521,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":56,"call_wall_distance_pct":0.7194272245620404,"put_wall":55,"put_wall_distance_pct":-1.0791339758765675,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3216},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":55.6,"totalOi":2063,"analysisCoverage":0.9444,"avgIvPct":193.1,"ivRank":100,"iv52wHighPct":193.1,"iv52wLowPct":15.1,"frontDte":35,"termPremiumPp":6.8792,"riskReversalFrontPp":4.94,"riskReversal30dPp":4.94,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.826,"putCallOiFrontRatio":1.805,"putCallVolumeFrontRatio":22,"optionVolume":378,"volumeOiRatio":0.183228,"netDeltaNormalized":0.073115,"dealerDeltaNormalized":-0.072584,"gexPer100kOi":288722.249152,"vannaPer100kOi":775.569559,"charmPer100kOi":36063.984489,"weekendDeltaShiftPer100kOi":108143.480368,"ivSurfaceRangePp":30.8,"gammaFlipDistancePct":4.010791,"maxPainDistancePct":0.719424,"peakCallDistancePct":-1.079137,"peakPutDistancePct":-1.079137},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GPIX.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."}