{"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/ATEC","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/ATEC.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/ATEC.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":"ATEC","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":10.029999732971191,"previous_close":9.899999618530273,"delta_neutral":8.612359790436194,"gamma_neutral":10.029999732971191,"gamma_max":10.5247482224288,"total_open_interest":13406,"previous_open_interest":13411,"listed_contracts":62,"listed_calls":52,"listed_puts":27,"gamma_max_distance_pct":4.932686965396844,"delta_neutral_distance_pct":-14.133997809340409,"gamma_neutral_distance_pct":0,"open_interest_change_1d_pct":-0.03728282752963985,"call_open_interest":9817,"put_open_interest":3589,"put_call_open_interest_ratio":0.36559030253641644,"nearest_expiration_max_pain":7.5,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-25.224325028189494,"all_expiration_max_pain":7.5,"net_gamma_exposure":361808.30410570087,"net_gamma_exposure_per_100k_open_interest":2698853.5290593826,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":12.5,"call_wall_distance_pct":24.626124953017513,"put_wall":10,"put_wall_distance_pct":-0.29910003758598874,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1855},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"ATEC","price":10.03,"totalOi":13406,"analysisCoverage":0.9444,"avgIvPct":135.2,"ivRank":55.9,"iv52wHighPct":158.5,"iv52wLowPct":105.61,"frontDte":14,"frontAtmIvPct":64.6933,"backAtmIvPct":79.8315,"termPremiumPp":-15.1382,"expectedMoveFrontPct":12.67,"straddleFrontPct":22.93,"straddle30dPct":22.93,"riskReversalFrontPp":16.03,"riskReversal30dPp":16.03,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.366,"putCallOiFrontRatio":0.865,"putCallVolumeFrontRatio":0.056,"optionVolume":3550,"volumeOiRatio":0.264807,"netDeltaNormalized":0.273561,"dealerDeltaNormalized":-0.268724,"gexPer100kOi":321072.803222,"vannaPer100kOi":-313.292556,"charmPer100kOi":-45285.692973,"weekendDeltaShiftPer100kOi":-135849.619573,"ivSurfaceRangePp":68.5,"gammaFlipDistancePct":-23.030907,"maxPainDistancePct":-25.224327,"peakCallDistancePct":24.626122,"peakPutDistancePct":-0.299103},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/ATEC.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."}