{"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/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=2026-10-02","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":82.18000030517578,"previous_close":81.55999755859375,"delta_neutral":85.01914726282885,"gamma_neutral":85.88020265167705,"gamma_max":93.37992052680706,"total_open_interest":2678,"previous_open_interest":2672,"listed_contracts":44,"listed_calls":22,"listed_puts":24,"gamma_max_distance_pct":13.628522974008666,"delta_neutral_distance_pct":3.4547906389752816,"gamma_neutral_distance_pct":4.502558204868039,"open_interest_change_1d_pct":0.2245508982035928,"call_open_interest":1414,"put_open_interest":1264,"put_call_open_interest_ratio":0.8939179632248939,"nearest_expiration_max_pain":85,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":3.431491463071475,"all_expiration_max_pain":85,"net_gamma_exposure":-251637.78242047995,"net_gamma_exposure_per_100k_open_interest":-9396481.793147122,"gamma_exposure_flip":85.88020265167705,"gamma_exposure_flip_distance_pct":4.502558204868039,"call_wall":90,"call_wall_distance_pct":9.51569684325215,"put_wall":80,"put_wall_distance_pct":-2.6527139171092005,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3005},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"GEF","price":82.18,"totalOi":2678,"analysisCoverage":0.9444,"avgIvPct":62.2,"ivRank":40.8,"iv52wHighPct":82.25,"iv52wLowPct":48.39,"frontDte":14,"frontAtmIvPct":34.2103,"backAtmIvPct":35.0986,"termPremiumPp":-0.8883,"expectedMoveFrontPct":6.7,"straddleFrontPct":5.63,"straddle30dPct":5.63,"riskReversalFrontPp":-0.31,"riskReversal30dPp":-0.31,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.894,"putCallOiFrontRatio":0.812,"putCallVolumeFrontRatio":0,"optionVolume":92,"volumeOiRatio":0.034354,"netDeltaNormalized":-0.111244,"dealerDeltaNormalized":0.111202,"gexPer100kOi":-7410225.541449,"vannaPer100kOi":1493.651979,"charmPer100kOi":1603472.740851,"weekendDeltaShiftPer100kOi":4810455.563854,"ivSurfaceRangePp":38.7,"gammaFlipDistancePct":-9.941592,"maxPainDistancePct":3.431492,"peakCallDistancePct":9.515697,"peakPutDistancePct":-2.652714},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GEF.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."}