{"schema_version":1,"publisher":"Half on a Double","data_through":"2026-10-02","frequency":"end-of-day","methodology":"market-implied-carry-v1","generation":"market-implied-carry-analytics-20260917T000000Z","canonical_url":"https://halfonadouble.com/stock/GPC","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GPC.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GPC.json?date=2026-10-02","definitions_url":"https://halfonadouble.com/methodology.md","license_url":"https://halfonadouble.com/terms.md","disclaimer_url":"https://halfonadouble.com/disclaimer.md","symbol":"GPC","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":127.23999786376953,"previous_close":125.12000274658203,"delta_neutral":112.93730490319652,"gamma_neutral":94.16364965624808,"gamma_max":136.50318561724646,"total_open_interest":11978,"previous_open_interest":11936,"listed_contracts":196,"listed_calls":125,"listed_puts":90,"gamma_max_distance_pct":7.280091094778726,"delta_neutral_distance_pct":-11.240720843053062,"gamma_neutral_distance_pct":-25.995244233605607,"open_interest_change_1d_pct":0.35187667560321717,"call_open_interest":9746,"put_open_interest":2232,"put_call_open_interest_ratio":0.22901703262877077,"nearest_expiration_max_pain":130,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":2.1691309199686453,"all_expiration_max_pain":115,"net_gamma_exposure":1915922.1007858955,"net_gamma_exposure_per_100k_open_interest":15995342.300767204,"gamma_exposure_flip":94.16364965624808,"gamma_exposure_flip_distance_pct":-25.995244233605607,"call_wall":140,"call_wall_distance_pct":10.02829483688931,"put_wall":130,"put_wall_distance_pct":2.1691309199686453,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1951},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"GPC","price":127.24,"totalOi":11978,"analysisCoverage":1,"avgIvPct":46.3,"ivRank":26.2,"iv52wHighPct":58.97,"iv52wLowPct":41.8,"frontDte":14,"frontAtmIvPct":29.3085,"backAtmIvPct":33.0516,"termPremiumPp":-3.7431,"expectedMoveFrontPct":5.74,"straddleFrontPct":4.79,"straddle30dPct":4.79,"riskReversalFrontPp":70,"riskReversal30dPp":70,"butterflyFrontPp":4.69,"butterfly30dPp":4.69,"putCallOiRatio":0.229,"putCallOiFrontRatio":0.161,"putCallVolumeFrontRatio":0.05,"optionVolume":68,"volumeOiRatio":0.005677,"netDeltaNormalized":0.200478,"dealerDeltaNormalized":-0.200144,"gexPer100kOi":20956798.797796,"vannaPer100kOi":2863.583236,"charmPer100kOi":-645583.569878,"weekendDeltaShiftPer100kOi":-1936750.709634,"ivSurfaceRangePp":110.5,"gammaFlipDistancePct":-9.886828,"maxPainDistancePct":-9.619616,"peakCallDistancePct":10.028293,"peakPutDistancePct":-5.690035},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GPC.json?date=2026-10-02","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."}