{"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/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=2026-10-16&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":"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":164.83999633789062,"previous_close":165.60000610351562,"delta_neutral":179.17659874108332,"gamma_neutral":214.6464007899392,"gamma_max":251.9864116201179,"total_open_interest":6667,"previous_open_interest":14476,"listed_contracts":156,"listed_calls":98,"listed_puts":76,"gamma_max_distance_pct":52.86727567233969,"delta_neutral_distance_pct":8.697283864169345,"gamma_neutral_distance_pct":30.21499973219784,"open_interest_change_1d_pct":-53.94445979552363,"call_open_interest":2328,"put_open_interest":4339,"put_call_open_interest_ratio":1.863831615120275,"nearest_expiration_max_pain":170,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":3.1303104687847414,"all_expiration_max_pain":165,"net_gamma_exposure":-384793.4525550656,"net_gamma_exposure_per_100k_open_interest":-5771613.207665601,"gamma_exposure_flip":214.6464007899392,"gamma_exposure_flip_distance_pct":30.21499973219784,"call_wall":200,"call_wall_distance_pct":21.329777022099698,"put_wall":165,"put_wall_distance_pct":0.09706604323224925,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2252},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":164.84,"totalOi":14575,"analysisCoverage":0.9444,"avgIvPct":441.3,"ivRank":83.7,"iv52wHighPct":515.4,"iv52wLowPct":61.6,"frontDte":35,"termPremiumPp":11.3067,"riskReversalFrontPp":10.47,"riskReversal30dPp":10.47,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":1.619,"putCallOiFrontRatio":7.076,"putCallVolumeFrontRatio":9,"optionVolume":956,"volumeOiRatio":0.065592,"netDeltaNormalized":-0.108176,"dealerDeltaNormalized":0.096397,"gexPer100kOi":-16436402.675815,"vannaPer100kOi":1104.631218,"charmPer100kOi":1636178.38765,"weekendDeltaShiftPer100kOi":4908535.16295,"ivSurfaceRangePp":30.1,"gammaFlipDistancePct":null,"maxPainDistancePct":0.097064,"peakCallDistancePct":-2.936181,"peakPutDistancePct":3.130308},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GKOS.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."}