{"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/ST","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ST.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ST.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":"ST","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":40.58000183105469,"previous_close":41.310001373291016,"delta_neutral":31.57582255867345,"gamma_neutral":25.418611390095016,"gamma_max":42.83984268574828,"total_open_interest":9594,"previous_open_interest":9884,"listed_contracts":95,"listed_calls":65,"listed_puts":45,"gamma_max_distance_pct":5.568853505975455,"delta_neutral_distance_pct":-22.18871085779647,"gamma_neutral_distance_pct":-37.361729317018174,"open_interest_change_1d_pct":-2.934034803723189,"call_open_interest":7035,"put_open_interest":2559,"put_call_open_interest_ratio":0.36375266524520256,"nearest_expiration_max_pain":45,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":10.8920600529959,"all_expiration_max_pain":30,"net_gamma_exposure":455227.10851384996,"net_gamma_exposure_per_100k_open_interest":4744914.61865593,"gamma_exposure_flip":25.418611390095016,"gamma_exposure_flip_distance_pct":-37.361729317018174,"call_wall":65,"call_wall_distance_pct":60.17742007654964,"put_wall":37.5,"put_wall_distance_pct":-7.58994995583675,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1989},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":40.58,"totalOi":9850,"analysisCoverage":1,"avgIvPct":268.3,"ivRank":100,"iv52wHighPct":268.3,"iv52wLowPct":59.9,"frontDte":35,"termPremiumPp":7.7484,"riskReversalFrontPp":44.18,"riskReversal30dPp":44.18,"butterflyFrontPp":-2.11,"butterfly30dPp":-2.11,"putCallOiRatio":0.381,"putCallOiFrontRatio":0.406,"putCallVolumeFrontRatio":0,"optionVolume":7,"volumeOiRatio":0.000711,"netDeltaNormalized":0.243023,"dealerDeltaNormalized":-0.238361,"gexPer100kOi":1880223.451777,"vannaPer100kOi":2091.370558,"charmPer100kOi":-921177.664975,"weekendDeltaShiftPer100kOi":-2763543.147208,"ivSurfaceRangePp":220.5,"gammaFlipDistancePct":-28.363726,"maxPainDistancePct":-26.071957,"peakCallDistancePct":47.856087,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ST.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."}