{"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/ALG","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ALG.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ALG.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":"ALG","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":161.00999450683594,"previous_close":156.36000061035156,"delta_neutral":162.03887138592827,"gamma_neutral":160.16969958878485,"gamma_max":185.5090342566233,"total_open_interest":125,"previous_open_interest":124,"listed_contracts":30,"listed_calls":13,"listed_puts":18,"gamma_max_distance_pct":15.215850310924154,"delta_neutral_distance_pct":0.6390142936429045,"gamma_neutral_distance_pct":-0.5218899116324173,"open_interest_change_1d_pct":0.8064516129032258,"call_open_interest":40,"put_open_interest":85,"put_call_open_interest_ratio":2.125,"nearest_expiration_max_pain":155,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-3.7326841263762502,"all_expiration_max_pain":155,"net_gamma_exposure":355.148595885222,"net_gamma_exposure_per_100k_open_interest":284118.8767081776,"gamma_exposure_flip":160.16969958878485,"gamma_exposure_flip_distance_pct":-0.5218899116324173,"call_wall":185,"call_wall_distance_pct":14.899699591099314,"put_wall":125,"put_wall_distance_pct":-22.365067843851815,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":4664},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.6667,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"ALG","price":161.01,"totalOi":125,"analysisCoverage":0.6667,"avgIvPct":47.1,"ivRank":6.7,"iv52wHighPct":121.94,"iv52wLowPct":41.7,"frontDte":14,"frontAtmIvPct":42.2268,"backAtmIvPct":42.2268,"termPremiumPp":0,"expectedMoveFrontPct":8.27,"straddleFrontPct":null,"straddle30dPct":null,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":2.125,"putCallOiFrontRatio":0.5,"putCallVolumeFrontRatio":0,"optionVolume":0,"volumeOiRatio":0,"netDeltaNormalized":-0.00872,"dealerDeltaNormalized":0.0088,"gexPer100kOi":1361288,"vannaPer100kOi":0,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":9.5,"gammaFlipDistancePct":14.887274,"maxPainDistancePct":-3.732687,"peakCallDistancePct":null,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ALG.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."}