{"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/ACM","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ACM.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ACM.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":"ACM","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":58.939998626708984,"previous_close":59.09000015258789,"delta_neutral":64.71533522351075,"gamma_neutral":70.47028193757816,"gamma_max":85.22463623865413,"total_open_interest":9778,"previous_open_interest":11912,"listed_contracts":120,"listed_calls":83,"listed_puts":50,"gamma_max_distance_pct":44.59558572170396,"delta_neutral_distance_pct":9.798671074594562,"gamma_neutral_distance_pct":19.562747844456464,"open_interest_change_1d_pct":-17.914707857622567,"call_open_interest":4897,"put_open_interest":4881,"put_call_open_interest_ratio":0.9967326934858076,"nearest_expiration_max_pain":60,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":1.7984414624853253,"all_expiration_max_pain":65,"net_gamma_exposure":-442410.23514903226,"net_gamma_exposure_per_100k_open_interest":-4524547.301585522,"gamma_exposure_flip":70.47028193757816,"gamma_exposure_flip_distance_pct":19.562747844456464,"call_wall":75,"call_wall_distance_pct":27.248051828106657,"put_wall":62.5,"put_wall_distance_pct":6.0400431900888805,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1978},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":58.94,"totalOi":11820,"analysisCoverage":1,"avgIvPct":491.1,"ivRank":94.3,"iv52wHighPct":517.4,"iv52wLowPct":52.1,"frontDte":35,"termPremiumPp":2.0014,"riskReversalFrontPp":4.68,"riskReversal30dPp":4.68,"butterflyFrontPp":3.41,"butterfly30dPp":3.41,"putCallOiRatio":0.781,"putCallOiFrontRatio":0.5,"putCallVolumeFrontRatio":20.4,"optionVolume":236,"volumeOiRatio":0.019966,"netDeltaNormalized":-0.093824,"dealerDeltaNormalized":0.093807,"gexPer100kOi":660141.285956,"vannaPer100kOi":2495.769882,"charmPer100kOi":-9077.834179,"weekendDeltaShiftPer100kOi":-27233.502538,"ivSurfaceRangePp":55.6,"gammaFlipDistancePct":-44.248388,"maxPainDistancePct":10.281642,"peakCallDistancePct":1.798439,"peakPutDistancePct":1.798439},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ACM.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."}