{"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/GRMN","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GRMN.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GRMN.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":"GRMN","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":284.8599853515625,"previous_close":285.2200012207031,"delta_neutral":248.0886075215742,"gamma_neutral":243.471074542618,"gamma_max":309.3200109463544,"total_open_interest":8875,"previous_open_interest":13451,"listed_contracts":229,"listed_calls":164,"listed_puts":115,"gamma_max_distance_pct":8.58668358232355,"delta_neutral_distance_pct":-12.908579555182722,"gamma_neutral_distance_pct":-14.529562921188809,"open_interest_change_1d_pct":-34.019775481376854,"call_open_interest":5516,"put_open_interest":3359,"put_call_open_interest_ratio":0.6089557650471356,"nearest_expiration_max_pain":280,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":-1.706096188120106,"all_expiration_max_pain":250,"net_gamma_exposure":406279.20238100743,"net_gamma_exposure_per_100k_open_interest":4577793.829645154,"gamma_exposure_flip":243.471074542618,"gamma_exposure_flip_distance_pct":-14.529562921188809,"call_wall":280,"call_wall_distance_pct":-1.706096188120106,"put_wall":250,"put_wall_distance_pct":-12.237585882250094,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2047},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":284.86,"totalOi":13811,"analysisCoverage":1,"avgIvPct":203.2,"ivRank":100,"iv52wHighPct":203.2,"iv52wLowPct":35.7,"frontDte":35,"termPremiumPp":7.2022,"riskReversalFrontPp":0,"riskReversal30dPp":0,"butterflyFrontPp":0.02,"butterfly30dPp":0.02,"putCallOiRatio":0.624,"putCallOiFrontRatio":5.767,"putCallVolumeFrontRatio":8.533,"optionVolume":628,"volumeOiRatio":0.045471,"netDeltaNormalized":0.238106,"dealerDeltaNormalized":-0.237847,"gexPer100kOi":22321066.830787,"vannaPer100kOi":-282.383607,"charmPer100kOi":200325.827239,"weekendDeltaShiftPer100kOi":600984.722323,"ivSurfaceRangePp":34.4,"gammaFlipDistancePct":-3.341993,"maxPainDistancePct":-8.727094,"peakCallDistancePct":-12.23759,"peakPutDistancePct":-12.23759},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GRMN.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."}