{"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/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=2026-10-02","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":40.150001525878906,"previous_close":39.439998626708984,"delta_neutral":34.30519287145081,"gamma_neutral":28.342620329972423,"gamma_max":39.554272107914585,"total_open_interest":521,"previous_open_interest":511,"listed_contracts":45,"listed_calls":29,"listed_puts":25,"gamma_max_distance_pct":-1.4837593905951427,"delta_neutral_distance_pct":-14.557430715564971,"gamma_neutral_distance_pct":-29.408171225836615,"open_interest_change_1d_pct":1.9569471624266144,"call_open_interest":238,"put_open_interest":283,"put_call_open_interest_ratio":1.1890756302521008,"nearest_expiration_max_pain":25,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-37.73350174373938,"all_expiration_max_pain":35,"net_gamma_exposure":17194.207302032355,"net_gamma_exposure_per_100k_open_interest":3300231.727837304,"gamma_exposure_flip":28.342620329972423,"gamma_exposure_flip_distance_pct":-29.408171225836615,"call_wall":35,"call_wall_distance_pct":-12.826902441235138,"put_wall":25,"put_wall_distance_pct":-37.73350174373938,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":4045},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.6667,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"VCEL","price":40.15,"totalOi":521,"analysisCoverage":0.6667,"avgIvPct":106.2,"ivRank":12.1,"iv52wHighPct":152.8,"iv52wLowPct":99.8,"frontDte":14,"frontAtmIvPct":78.3774,"backAtmIvPct":49.725,"termPremiumPp":28.6524,"expectedMoveFrontPct":15.35,"straddleFrontPct":null,"straddle30dPct":null,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":1.189,"putCallOiFrontRatio":1.136,"putCallVolumeFrontRatio":0,"optionVolume":4,"volumeOiRatio":0.007678,"netDeltaNormalized":0.081411,"dealerDeltaNormalized":-0.075317,"gexPer100kOi":1048570.057582,"vannaPer100kOi":0,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":38.9,"gammaFlipDistancePct":-5.280199,"maxPainDistancePct":-12.826899,"peakCallDistancePct":12.079701,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/VCEL.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."}