{"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/ZTO","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ZTO.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ZTO.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":"ZTO","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":19.5,"previous_close":19.389999389648438,"delta_neutral":21.15400706011961,"gamma_neutral":78.7288643293609,"gamma_max":24.898298728860677,"total_open_interest":80706,"previous_open_interest":66691,"listed_contracts":83,"listed_calls":54,"listed_puts":42,"gamma_max_distance_pct":27.68358322492655,"delta_neutral_distance_pct":8.482087487792874,"gamma_neutral_distance_pct":303.73776579159437,"open_interest_change_1d_pct":21.014829587200673,"call_open_interest":32147,"put_open_interest":48559,"put_call_open_interest_ratio":1.510529753942825,"nearest_expiration_max_pain":20,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":2.564102564102564,"all_expiration_max_pain":21,"net_gamma_exposure":-817091.4455778102,"net_gamma_exposure_per_100k_open_interest":-1012429.615614465,"gamma_exposure_flip":78.7288643293609,"gamma_exposure_flip_distance_pct":303.73776579159437,"call_wall":20,"call_wall_distance_pct":2.564102564102564,"put_wall":20,"put_wall_distance_pct":2.564102564102564,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":743},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"ZTO","price":19.5,"totalOi":80706,"analysisCoverage":0.9444,"avgIvPct":118.3,"ivRank":72.7,"iv52wHighPct":134,"iv52wLowPct":76.4,"frontDte":14,"frontAtmIvPct":38.142,"backAtmIvPct":32.3147,"termPremiumPp":5.8273,"expectedMoveFrontPct":7.47,"straddleFrontPct":5.51,"straddle30dPct":5.51,"riskReversalFrontPp":-1.92,"riskReversal30dPp":-1.92,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":1.511,"putCallOiFrontRatio":0.059,"putCallVolumeFrontRatio":0,"optionVolume":25,"volumeOiRatio":0.00031,"netDeltaNormalized":-0.091371,"dealerDeltaNormalized":0.091366,"gexPer100kOi":-209581.741134,"vannaPer100kOi":3764.280227,"charmPer100kOi":-447031.199663,"weekendDeltaShiftPer100kOi":-1341093.598989,"ivSurfaceRangePp":122.3,"gammaFlipDistancePct":null,"maxPainDistancePct":7.692308,"peakCallDistancePct":2.564103,"peakPutDistancePct":-2.564103},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ZTO.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."}