{"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/GRC","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GRC.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GRC.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":"GRC","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":77.26000213623047,"previous_close":75.12999725341797,"delta_neutral":66.25975130510153,"gamma_neutral":57.343425729882696,"gamma_max":83.58538427129702,"total_open_interest":193,"previous_open_interest":193,"listed_contracts":32,"listed_calls":19,"listed_puts":16,"gamma_max_distance_pct":8.187136888649281,"delta_neutral_distance_pct":-14.23796340534976,"gamma_neutral_distance_pct":-25.77863817713778,"open_interest_change_1d_pct":0,"call_open_interest":160,"put_open_interest":33,"put_call_open_interest_ratio":0.20625,"nearest_expiration_max_pain":60,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-22.340152289662605,"all_expiration_max_pain":70,"net_gamma_exposure":21368.791764935937,"net_gamma_exposure_per_100k_open_interest":11071912.831573024,"gamma_exposure_flip":57.343425729882696,"gamma_exposure_flip_distance_pct":-25.77863817713778,"call_wall":95,"call_wall_distance_pct":22.961425541367543,"put_wall":60,"put_wall_distance_pct":-22.340152289662605,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":4509},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.8333,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"GRC","price":77.26,"totalOi":193,"analysisCoverage":0.8333,"avgIvPct":46.3,"ivRank":1.4,"iv52wHighPct":123.28,"iv52wLowPct":45.2,"frontDte":14,"frontAtmIvPct":32.5253,"backAtmIvPct":34.3071,"termPremiumPp":-1.7818,"expectedMoveFrontPct":6.37,"straddleFrontPct":null,"straddle30dPct":null,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.206,"putCallOiFrontRatio":0,"putCallVolumeFrontRatio":0,"optionVolume":1,"volumeOiRatio":0.005181,"netDeltaNormalized":0.198177,"dealerDeltaNormalized":-0.19715,"gexPer100kOi":8740207.253886,"vannaPer100kOi":4145.07772,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":9.3,"gammaFlipDistancePct":-1.475537,"maxPainDistancePct":-9.396842,"peakCallDistancePct":10.018121,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GRC.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."}