{"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/VCEL","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/VCEL.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/VCEL.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":"VCEL","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":40.130001068115234,"previous_close":41.02000045776367,"delta_neutral":34.548121248352075,"gamma_neutral":28.406659363715477,"gamma_max":44.542531469452214,"total_open_interest":384,"previous_open_interest":567,"listed_contracts":35,"listed_calls":18,"listed_puts":19,"gamma_max_distance_pct":10.995590042091722,"delta_neutral_distance_pct":-13.909493324679149,"gamma_neutral_distance_pct":-29.213409898746264,"open_interest_change_1d_pct":-32.27513227513227,"call_open_interest":192,"put_open_interest":192,"put_call_open_interest_ratio":1,"nearest_expiration_max_pain":45,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":12.135556447204182,"all_expiration_max_pain":35,"net_gamma_exposure":10667.05012083375,"net_gamma_exposure_per_100k_open_interest":2777877.635633789,"gamma_exposure_flip":28.406659363715477,"gamma_exposure_flip_distance_pct":-29.213409898746264,"call_wall":50,"call_wall_distance_pct":24.59506271911576,"put_wall":25,"put_wall_distance_pct":-37.70246864044212,"gamma_max_cross_direction":"below","delta_neutral_cross_direction":null,"open_interest_rank":4080},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.6667,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":40.13,"totalOi":571,"analysisCoverage":0.6667,"avgIvPct":1601.3,"ivRank":100,"iv52wHighPct":1601.3,"iv52wLowPct":99.8,"frontDte":91,"termPremiumPp":0,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":1.115,"putCallOiFrontRatio":0.129,"putCallVolumeFrontRatio":0,"optionVolume":36,"volumeOiRatio":0.063047,"netDeltaNormalized":0.135482,"dealerDeltaNormalized":-0.135464,"gexPer100kOi":1651614.711033,"vannaPer100kOi":0,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":24.3,"gammaFlipDistancePct":-13.356591,"maxPainDistancePct":-12.783454,"peakCallDistancePct":12.135559,"peakPutDistancePct":-12.783454},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/VCEL.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."}