{"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/MSA","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/MSA.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/MSA.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":"MSA","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":181.22999572753906,"previous_close":179.02999877929688,"delta_neutral":170.32123757204786,"gamma_neutral":158.8945813787975,"gamma_max":187.3437240816075,"total_open_interest":266,"previous_open_interest":266,"listed_contracts":40,"listed_calls":18,"listed_puts":23,"gamma_max_distance_pct":3.373463829497518,"delta_neutral_distance_pct":-6.019289528589634,"gamma_neutral_distance_pct":-12.324347445397827,"open_interest_change_1d_pct":0,"call_open_interest":176,"put_open_interest":90,"put_call_open_interest_ratio":0.5113636363636364,"nearest_expiration_max_pain":175,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-3.4376184265353236,"all_expiration_max_pain":185,"net_gamma_exposure":55705.71493936087,"net_gamma_exposure_per_100k_open_interest":20941998.097504087,"gamma_exposure_flip":158.8945813787975,"gamma_exposure_flip_distance_pct":-12.324347445397827,"call_wall":190,"call_wall_distance_pct":4.839157136904506,"put_wall":175,"put_wall_distance_pct":-3.4376184265353236,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":4369},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.7778,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"MSA","price":181.23,"totalOi":266,"analysisCoverage":0.7778,"avgIvPct":44.8,"ivRank":12.4,"iv52wHighPct":117.9,"iv52wLowPct":34.5,"frontDte":14,"frontAtmIvPct":48.5072,"backAtmIvPct":24.3412,"termPremiumPp":24.166,"expectedMoveFrontPct":9.5,"straddleFrontPct":null,"straddle30dPct":null,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.511,"putCallOiFrontRatio":0.025,"putCallVolumeFrontRatio":0,"optionVolume":0,"volumeOiRatio":0,"netDeltaNormalized":0.152782,"dealerDeltaNormalized":-0.152782,"gexPer100kOi":35112477.443609,"vannaPer100kOi":751.879699,"charmPer100kOi":-4130827.067669,"weekendDeltaShiftPer100kOi":-12392105.263158,"ivSurfaceRangePp":17.2,"gammaFlipDistancePct":2.28439,"maxPainDistancePct":2.08023,"peakCallDistancePct":null,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/MSA.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."}