{"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/PAYX","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/PAYX.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/PAYX.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":"PAYX","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":98.94000244140625,"previous_close":100.83999633789062,"delta_neutral":103.73768743752481,"gamma_neutral":100.28127927058065,"gamma_max":124.37121310743623,"total_open_interest":46142,"previous_open_interest":46032,"listed_contracts":293,"listed_calls":180,"listed_puts":132,"gamma_max_distance_pct":25.703668929147973,"delta_neutral_distance_pct":4.849085180647558,"gamma_neutral_distance_pct":1.355646650573643,"open_interest_change_1d_pct":0.23896419881821343,"call_open_interest":27457,"put_open_interest":18685,"put_call_open_interest_ratio":0.6805186291291838,"nearest_expiration_max_pain":105,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":6.1249215777840424,"all_expiration_max_pain":110,"net_gamma_exposure":-391677.9420060999,"net_gamma_exposure_per_100k_open_interest":-848853.4133893197,"gamma_exposure_flip":100.28127927058065,"gamma_exposure_flip_distance_pct":1.355646650573643,"call_wall":100,"call_wall_distance_pct":1.0713538836038503,"put_wall":100,"put_wall_distance_pct":1.0713538836038503,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1031},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"PAYX","price":98.94,"totalOi":46142,"analysisCoverage":1,"avgIvPct":39.7,"ivRank":16.5,"iv52wHighPct":59.95,"iv52wLowPct":35.7,"frontDte":14,"frontAtmIvPct":29.1554,"backAtmIvPct":28.1662,"termPremiumPp":0.9892,"expectedMoveFrontPct":5.71,"straddleFrontPct":4.19,"straddle30dPct":4.19,"riskReversalFrontPp":-63.13,"riskReversal30dPp":-63.13,"butterflyFrontPp":0.56,"butterfly30dPp":0.56,"putCallOiRatio":0.681,"putCallOiFrontRatio":0.589,"putCallVolumeFrontRatio":0.518,"optionVolume":792,"volumeOiRatio":0.017164,"netDeltaNormalized":-0.070701,"dealerDeltaNormalized":0.070391,"gexPer100kOi":129987.018335,"vannaPer100kOi":3545.576698,"charmPer100kOi":127686.27281,"weekendDeltaShiftPer100kOi":383058.81843,"ivSurfaceRangePp":67.5,"gammaFlipDistancePct":50.646857,"maxPainDistancePct":11.178492,"peakCallDistancePct":11.178492,"peakPutDistancePct":-3.982211},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/PAYX.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."}