{"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/GHM","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GHM.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GHM.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":"GHM","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":91.48999786376953,"previous_close":86.9000015258789,"delta_neutral":76.17790437433268,"gamma_neutral":63.70753380471194,"gamma_max":112.34353096643406,"total_open_interest":783,"previous_open_interest":783,"listed_contracts":48,"listed_calls":31,"listed_puts":20,"gamma_max_distance_pct":22.793238156717265,"delta_neutral_distance_pct":-16.736357904649715,"gamma_neutral_distance_pct":-30.366668168936066,"open_interest_change_1d_pct":0,"call_open_interest":631,"put_open_interest":152,"put_call_open_interest_ratio":0.24088748019017434,"nearest_expiration_max_pain":90,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-1.6285909919772523,"all_expiration_max_pain":85,"net_gamma_exposure":40864.17986682413,"net_gamma_exposure_per_100k_open_interest":5218924.631778305,"gamma_exposure_flip":63.70753380471194,"gamma_exposure_flip_distance_pct":-30.366668168936066,"call_wall":135,"call_wall_distance_pct":47.55711351203412,"put_wall":90,"put_wall_distance_pct":-1.6285909919772523,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3808},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.7778,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"GHM","price":91.49,"totalOi":783,"analysisCoverage":0.7778,"avgIvPct":70,"ivRank":5.5,"iv52wHighPct":126.22,"iv52wLowPct":66.7,"frontDte":14,"frontAtmIvPct":55.6556,"backAtmIvPct":64.9842,"termPremiumPp":-9.3286,"expectedMoveFrontPct":10.9,"straddleFrontPct":null,"straddle30dPct":null,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.241,"putCallOiFrontRatio":1.588,"putCallVolumeFrontRatio":0.5,"optionVolume":16,"volumeOiRatio":0.020434,"netDeltaNormalized":0.144521,"dealerDeltaNormalized":-0.144508,"gexPer100kOi":4550494.252874,"vannaPer100kOi":5108.556833,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":14.8,"gammaFlipDistancePct":37.993223,"maxPainDistancePct":-7.093671,"peakCallDistancePct":3.836485,"peakPutDistancePct":-7.093671},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GHM.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."}