{"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/ALK","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ALK.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ALK.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":"ALK","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":39.529998779296875,"previous_close":39.4900016784668,"delta_neutral":38.09007762102018,"gamma_neutral":36.318520215791416,"gamma_max":46.58610134570762,"total_open_interest":92150,"previous_open_interest":91834,"listed_contracts":320,"listed_calls":200,"listed_puts":159,"gamma_max_distance_pct":17.849994394905597,"delta_neutral_distance_pct":-3.642603599145137,"gamma_neutral_distance_pct":-8.1241554836258,"open_interest_change_1d_pct":0.34409913539647624,"call_open_interest":60284,"put_open_interest":31866,"put_call_open_interest_ratio":0.5285979696105102,"nearest_expiration_max_pain":40,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":1.1889735269844726,"all_expiration_max_pain":40,"net_gamma_exposure":2464800.638306305,"net_gamma_exposure_per_100k_open_interest":2674770.090402935,"gamma_exposure_flip":36.318520215791416,"gamma_exposure_flip_distance_pct":-8.1241554836258,"call_wall":45,"call_wall_distance_pct":13.837595217857531,"put_wall":37.5,"put_wall_distance_pct":-5.135337318452057,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":667},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"ALK","price":39.53,"totalOi":92150,"analysisCoverage":1,"avgIvPct":68.2,"ivRank":59.6,"iv52wHighPct":76.58,"iv52wLowPct":55.84,"frontDte":14,"frontAtmIvPct":55.3492,"backAtmIvPct":53.221,"termPremiumPp":2.1282,"expectedMoveFrontPct":10.84,"straddleFrontPct":8.41,"straddle30dPct":8.41,"riskReversalFrontPp":0.52,"riskReversal30dPp":0.52,"butterflyFrontPp":0.89,"butterfly30dPp":0.89,"putCallOiRatio":0.529,"putCallOiFrontRatio":0.566,"putCallVolumeFrontRatio":0.408,"optionVolume":1091,"volumeOiRatio":0.011839,"netDeltaNormalized":0.059752,"dealerDeltaNormalized":-0.059752,"gexPer100kOi":1074784.036896,"vannaPer100kOi":3326.098752,"charmPer100kOi":-1195621.269669,"weekendDeltaShiftPer100kOi":-3586862.72382,"ivSurfaceRangePp":22.3,"gammaFlipDistancePct":12.57273,"maxPainDistancePct":1.18897,"peakCallDistancePct":7.513281,"peakPutDistancePct":-5.13534},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ALK.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."}