{"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/GMED","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GMED.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GMED.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":"GMED","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":76.70999908447266,"previous_close":78.83999633789062,"delta_neutral":70.45957059141125,"gamma_neutral":60.110256835498916,"gamma_max":79.318250847685,"total_open_interest":2622,"previous_open_interest":3802,"listed_contracts":82,"listed_calls":53,"listed_puts":38,"gamma_max_distance_pct":3.4001457363337253,"delta_neutral_distance_pct":-8.148127450996926,"gamma_neutral_distance_pct":-21.639606892309033,"open_interest_change_1d_pct":-31.036296685954763,"call_open_interest":1938,"put_open_interest":684,"put_call_open_interest_ratio":0.35294117647058826,"nearest_expiration_max_pain":72.5,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":-5.488201192437281,"all_expiration_max_pain":77.5,"net_gamma_exposure":272477.734386179,"net_gamma_exposure_per_100k_open_interest":10391980.7164828,"gamma_exposure_flip":60.110256835498916,"gamma_exposure_flip_distance_pct":-21.639606892309033,"call_wall":77.5,"call_wall_distance_pct":1.0298538977394573,"put_wall":75,"put_wall_distance_pct":-2.229173647348912,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2900},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":76.71,"totalOi":3828,"analysisCoverage":1,"avgIvPct":251.6,"ivRank":100,"iv52wHighPct":251.6,"iv52wLowPct":43.5,"frontDte":35,"termPremiumPp":6.354,"riskReversalFrontPp":-5.33,"riskReversal30dPp":-5.33,"butterflyFrontPp":7.74,"butterfly30dPp":7.74,"putCallOiRatio":0.315,"putCallOiFrontRatio":0.05,"putCallVolumeFrontRatio":0.885,"optionVolume":198,"volumeOiRatio":0.051724,"netDeltaNormalized":0.151225,"dealerDeltaNormalized":-0.151225,"gexPer100kOi":14100874.869383,"vannaPer100kOi":1280.041797,"charmPer100kOi":-700470.219436,"weekendDeltaShiftPer100kOi":-2101384.535005,"ivSurfaceRangePp":42.5,"gammaFlipDistancePct":-1.903272,"maxPainDistancePct":-2.229175,"peakCallDistancePct":1.029853,"peakPutDistancePct":4.28888},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GMED.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."}