{"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/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=2026-10-16&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":"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":68.4800033569336,"previous_close":71.1500015258789,"delta_neutral":60.330438861547435,"gamma_neutral":68.4800033569336,"gamma_max":97.96814039853727,"total_open_interest":805,"previous_open_interest":1116,"listed_contracts":50,"listed_calls":31,"listed_puts":22,"gamma_max_distance_pct":43.060945671840436,"delta_neutral_distance_pct":-11.900648504511231,"gamma_neutral_distance_pct":0,"open_interest_change_1d_pct":-27.8673835125448,"call_open_interest":637,"put_open_interest":168,"put_call_open_interest_ratio":0.26373626373626374,"nearest_expiration_max_pain":80,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":16.82242417983177,"all_expiration_max_pain":80,"net_gamma_exposure":17960.631418613066,"net_gamma_exposure_per_100k_open_interest":2231134.337715909,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":135,"call_wall_distance_pct":97.13784080346612,"put_wall":60,"put_wall_distance_pct":-12.38318186512617,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3672},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.7778,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":68.48,"totalOi":1116,"analysisCoverage":0.7778,"avgIvPct":386.2,"ivRank":100,"iv52wHighPct":386.2,"iv52wLowPct":66.7,"frontDte":35,"termPremiumPp":6.7142,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.188,"putCallOiFrontRatio":1.333,"putCallVolumeFrontRatio":0,"optionVolume":13,"volumeOiRatio":0.011649,"netDeltaNormalized":0.100143,"dealerDeltaNormalized":-0.100143,"gexPer100kOi":2516093.189964,"vannaPer100kOi":3315.412186,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":3.1,"gammaFlipDistancePct":34.929907,"maxPainDistancePct":16.82243,"peakCallDistancePct":null,"peakPutDistancePct":16.82243},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GHM.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."}