{"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/COAL","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/COAL.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/COAL.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":"COAL","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":24.200000762939453,"previous_close":23.950000762939453,"delta_neutral":20.76846450807509,"gamma_neutral":24.200000762939453,"gamma_max":28.47021131708247,"total_open_interest":1042,"previous_open_interest":1052,"listed_contracts":45,"listed_calls":36,"listed_puts":11,"gamma_max_distance_pct":17.645497601316336,"delta_neutral_distance_pct":-14.179901432563222,"gamma_neutral_distance_pct":0,"open_interest_change_1d_pct":-0.9505703422053232,"call_open_interest":971,"put_open_interest":71,"put_call_open_interest_ratio":0.07312049433573635,"nearest_expiration_max_pain":25,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":3.305781867105094,"all_expiration_max_pain":25,"net_gamma_exposure":84826.62482327205,"net_gamma_exposure_per_100k_open_interest":8140750.942732443,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":33,"call_wall_distance_pct":36.363632064578724,"put_wall":24,"put_wall_distance_pct":-0.8264494075791097,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3665},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.8333,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"COAL","price":24.2,"totalOi":1042,"analysisCoverage":0.8333,"avgIvPct":57.2,"ivRank":22.4,"iv52wHighPct":115.65,"iv52wLowPct":40.3,"frontDte":14,"frontAtmIvPct":31.2999,"backAtmIvPct":27.3474,"termPremiumPp":3.9525,"expectedMoveFrontPct":6.13,"straddleFrontPct":null,"straddle30dPct":null,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.073,"putCallOiFrontRatio":0.198,"putCallVolumeFrontRatio":0,"optionVolume":2,"volumeOiRatio":0.001919,"netDeltaNormalized":0.129357,"dealerDeltaNormalized":-0.129367,"gexPer100kOi":2026526.871401,"vannaPer100kOi":3934.740883,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":199.8,"gammaFlipDistancePct":4.752066,"maxPainDistancePct":3.305785,"peakCallDistancePct":15.702479,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/COAL.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."}