{"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/ALKS","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ALKS.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ALKS.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":"ALKS","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":41.75,"previous_close":40.540000915527344,"delta_neutral":44.7982766588116,"gamma_neutral":47.89757332380931,"gamma_max":54.50786829735395,"total_open_interest":18941,"previous_open_interest":18915,"listed_contracts":189,"listed_calls":115,"listed_puts":96,"gamma_max_distance_pct":30.557768376895694,"delta_neutral_distance_pct":7.301261458231383,"gamma_neutral_distance_pct":14.724726524094159,"open_interest_change_1d_pct":0.13745704467353953,"call_open_interest":9243,"put_open_interest":9698,"put_call_open_interest_ratio":1.049226441631505,"nearest_expiration_max_pain":45,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":7.784431137724551,"all_expiration_max_pain":44,"net_gamma_exposure":-1095652.3164426633,"net_gamma_exposure_per_100k_open_interest":-5784553.7006634455,"gamma_exposure_flip":47.89757332380931,"gamma_exposure_flip_distance_pct":14.724726524094159,"call_wall":55,"call_wall_distance_pct":31.736526946107784,"put_wall":44,"put_wall_distance_pct":5.389221556886228,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1615},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"ALKS","price":41.75,"totalOi":18941,"analysisCoverage":1,"avgIvPct":65.3,"ivRank":0,"iv52wHighPct":85.05,"iv52wLowPct":65.3,"frontDte":14,"frontAtmIvPct":46.9243,"backAtmIvPct":58.2702,"termPremiumPp":-11.3459,"expectedMoveFrontPct":9.19,"straddleFrontPct":5.99,"straddle30dPct":5.99,"riskReversalFrontPp":17.11,"riskReversal30dPp":17.11,"butterflyFrontPp":1.35,"butterfly30dPp":1.35,"putCallOiRatio":1.049,"putCallOiFrontRatio":3.526,"putCallVolumeFrontRatio":19.308,"optionVolume":2652,"volumeOiRatio":0.140014,"netDeltaNormalized":-0.129651,"dealerDeltaNormalized":0.128858,"gexPer100kOi":-2460243.651338,"vannaPer100kOi":3922.707354,"charmPer100kOi":1088659.521673,"weekendDeltaShiftPer100kOi":3265983.84457,"ivSurfaceRangePp":45.7,"gammaFlipDistancePct":-67.568862,"maxPainDistancePct":5.389222,"peakCallDistancePct":31.736527,"peakPutDistancePct":-11.377246},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ALKS.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."}