{"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/GEF","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GEF.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GEF.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":"GEF","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":82.12000274658203,"previous_close":80.04000091552734,"delta_neutral":85.52727728191007,"gamma_neutral":84.03472149844171,"gamma_max":97.63599356634855,"total_open_interest":562,"previous_open_interest":2330,"listed_contracts":28,"listed_calls":16,"listed_puts":14,"gamma_max_distance_pct":18.894289211908625,"delta_neutral_distance_pct":4.149140795626506,"gamma_neutral_distance_pct":2.331610676838871,"open_interest_change_1d_pct":-75.87982832618026,"call_open_interest":275,"put_open_interest":287,"put_call_open_interest_ratio":1.0436363636363637,"nearest_expiration_max_pain":80,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":-2.581591178368865,"all_expiration_max_pain":90,"net_gamma_exposure":-4850.110954637276,"net_gamma_exposure_per_100k_open_interest":-863009.066661437,"gamma_exposure_flip":84.03472149844171,"gamma_exposure_flip_distance_pct":2.331610676838871,"call_wall":90,"call_wall_distance_pct":9.595709924335027,"put_wall":85,"put_wall_distance_pct":3.5070593729830812,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3873},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":82.12,"totalOi":2331,"analysisCoverage":0.9444,"avgIvPct":751,"ivRank":95.8,"iv52wHighPct":782,"iv52wLowPct":48.39,"frontDte":35,"termPremiumPp":0,"riskReversalFrontPp":5.82,"riskReversal30dPp":5.82,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.582,"putCallOiFrontRatio":0.364,"putCallVolumeFrontRatio":0,"optionVolume":1,"volumeOiRatio":0.000429,"netDeltaNormalized":0.064376,"dealerDeltaNormalized":-0.061913,"gexPer100kOi":-6337688.974689,"vannaPer100kOi":471.900472,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":24.4,"gammaFlipDistancePct":null,"maxPainDistancePct":3.507063,"peakCallDistancePct":3.507063,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GEF.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."}