{"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/ES","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ES.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ES.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":"ES","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":64.5,"previous_close":64.30999755859375,"delta_neutral":64.77207747844044,"gamma_neutral":62.95843962474467,"gamma_max":70.38792443037326,"total_open_interest":8286,"previous_open_interest":8250,"listed_contracts":55,"listed_calls":31,"listed_puts":27,"gamma_max_distance_pct":9.128565008330636,"delta_neutral_distance_pct":0.4218255479696697,"gamma_neutral_distance_pct":-2.3900160856671775,"open_interest_change_1d_pct":0.4363636363636364,"call_open_interest":6272,"put_open_interest":2014,"put_call_open_interest_ratio":0.321109693877551,"nearest_expiration_max_pain":70,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":8.527131782945736,"all_expiration_max_pain":70,"net_gamma_exposure":302745.20059783093,"net_gamma_exposure_per_100k_open_interest":3653695.3970290967,"gamma_exposure_flip":62.95843962474467,"gamma_exposure_flip_distance_pct":-2.3900160856671775,"call_wall":70,"call_wall_distance_pct":8.527131782945736,"put_wall":65,"put_wall_distance_pct":0.7751937984496124,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2225},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"ES","price":64.5,"totalOi":8286,"analysisCoverage":1,"avgIvPct":59.8,"ivRank":56.9,"iv52wHighPct":76.72,"iv52wLowPct":37.5,"frontDte":14,"frontAtmIvPct":20.5262,"backAtmIvPct":21.9434,"termPremiumPp":-1.4172,"expectedMoveFrontPct":4.02,"straddleFrontPct":3.14,"straddle30dPct":3.14,"riskReversalFrontPp":-104.59,"riskReversal30dPp":-104.59,"butterflyFrontPp":-1.2,"butterfly30dPp":-1.2,"putCallOiRatio":0.321,"putCallOiFrontRatio":0.251,"putCallVolumeFrontRatio":0.068,"optionVolume":143,"volumeOiRatio":0.017258,"netDeltaNormalized":-0.006109,"dealerDeltaNormalized":0.006109,"gexPer100kOi":2646135.650495,"vannaPer100kOi":2667.149409,"charmPer100kOi":-1223787.110789,"weekendDeltaShiftPer100kOi":-3671361.332368,"ivSurfaceRangePp":159.8,"gammaFlipDistancePct":7.751938,"maxPainDistancePct":8.527132,"peakCallDistancePct":8.527132,"peakPutDistancePct":-6.976744},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ES.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."}