{"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/GKOS","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GKOS.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GKOS.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":"GKOS","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":163.75,"previous_close":163.1699981689453,"delta_neutral":164.970388315494,"gamma_neutral":180.48216175539724,"gamma_max":203.93575440244177,"total_open_interest":12411,"previous_open_interest":12211,"listed_contracts":178,"listed_calls":114,"listed_puts":89,"gamma_max_distance_pct":24.54091871904841,"delta_neutral_distance_pct":0.7452753071719119,"gamma_neutral_distance_pct":10.218114049097553,"open_interest_change_1d_pct":1.6378674965195315,"call_open_interest":5085,"put_open_interest":7326,"put_call_open_interest_ratio":1.44070796460177,"nearest_expiration_max_pain":160,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-2.2900763358778624,"all_expiration_max_pain":160,"net_gamma_exposure":-458296.97399477166,"net_gamma_exposure_per_100k_open_interest":-3692667.585164545,"gamma_exposure_flip":180.48216175539724,"gamma_exposure_flip_distance_pct":10.218114049097553,"call_wall":160,"call_wall_distance_pct":-2.2900763358778624,"put_wall":160,"put_wall_distance_pct":-2.2900763358778624,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1925},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"GKOS","price":163.75,"totalOi":12411,"analysisCoverage":1,"avgIvPct":69.2,"ivRank":37.8,"iv52wHighPct":81.7,"iv52wLowPct":61.6,"frontDte":14,"frontAtmIvPct":63.2636,"backAtmIvPct":60.6992,"termPremiumPp":2.5644,"expectedMoveFrontPct":12.39,"straddleFrontPct":9.44,"straddle30dPct":9.44,"riskReversalFrontPp":2.98,"riskReversal30dPp":2.98,"butterflyFrontPp":11.31,"butterfly30dPp":11.31,"putCallOiRatio":1.441,"putCallOiFrontRatio":1.79,"putCallVolumeFrontRatio":12.864,"optionVolume":540,"volumeOiRatio":0.04351,"netDeltaNormalized":-0.000825,"dealerDeltaNormalized":0.000823,"gexPer100kOi":-5037137.136411,"vannaPer100kOi":1780.67843,"charmPer100kOi":1948497.300782,"weekendDeltaShiftPer100kOi":5845491.902345,"ivSurfaceRangePp":103.8,"gammaFlipDistancePct":null,"maxPainDistancePct":-2.290076,"peakCallDistancePct":-8.396947,"peakPutDistancePct":0.763359},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GKOS.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."}