{"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/GPGI","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GPGI.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GPGI.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":"GPGI","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":12.899999618530273,"previous_close":12.050000190734863,"delta_neutral":11.779834574601278,"gamma_neutral":12.899999618530273,"gamma_max":15.906898221507738,"total_open_interest":2015,"previous_open_interest":2015,"listed_contracts":27,"listed_calls":21,"listed_puts":12,"gamma_max_distance_pct":23.309292185235332,"delta_neutral_distance_pct":-8.683450209718831,"gamma_neutral_distance_pct":0,"open_interest_change_1d_pct":0,"call_open_interest":1597,"put_open_interest":418,"put_call_open_interest_ratio":0.2617407639323732,"nearest_expiration_max_pain":12.5,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-3.1007723283626447,"all_expiration_max_pain":10,"net_gamma_exposure":44981.16925257673,"net_gamma_exposure_per_100k_open_interest":2232316.091939292,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":12.5,"call_wall_distance_pct":-3.1007723283626447,"put_wall":12.5,"put_wall_distance_pct":-3.1007723283626447,"gamma_max_cross_direction":"below","delta_neutral_cross_direction":null,"open_interest_rank":3198},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"GPGI","price":12.9,"totalOi":2015,"analysisCoverage":0.9444,"avgIvPct":108,"ivRank":23.3,"iv52wHighPct":177.3,"iv52wLowPct":86.93,"frontDte":14,"frontAtmIvPct":54.8386,"backAtmIvPct":64.2496,"termPremiumPp":-9.411,"expectedMoveFrontPct":10.74,"straddleFrontPct":8.53,"straddle30dPct":8.53,"riskReversalFrontPp":-3.43,"riskReversal30dPp":-3.43,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.262,"putCallOiFrontRatio":1.815,"putCallVolumeFrontRatio":0.1,"optionVolume":34,"volumeOiRatio":0.016873,"netDeltaNormalized":0.264831,"dealerDeltaNormalized":-0.263906,"gexPer100kOi":478439.205955,"vannaPer100kOi":2034.739454,"charmPer100kOi":-18263.027295,"weekendDeltaShiftPer100kOi":-54739.454094,"ivSurfaceRangePp":70.3,"gammaFlipDistancePct":-40.387597,"maxPainDistancePct":-22.48062,"peakCallDistancePct":-22.48062,"peakPutDistancePct":-3.100775},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GPGI.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."}