{"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/MPLX","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/MPLX.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/MPLX.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":"MPLX","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":56.380001068115234,"previous_close":56.349998474121094,"delta_neutral":52.85186562356443,"gamma_neutral":9.117169437183176,"gamma_max":60.51932321103243,"total_open_interest":73678,"previous_open_interest":72883,"listed_contracts":90,"listed_calls":68,"listed_puts":57,"gamma_max_distance_pct":7.34182700336648,"delta_neutral_distance_pct":-6.257778250639452,"gamma_neutral_distance_pct":-83.82907189702193,"open_interest_change_1d_pct":1.0907893473100723,"call_open_interest":54159,"put_open_interest":19519,"put_call_open_interest_ratio":0.3604017799442383,"nearest_expiration_max_pain":55,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-2.4476783291436846,"all_expiration_max_pain":55,"net_gamma_exposure":6224653.875844279,"net_gamma_exposure_per_100k_open_interest":8448456.629990336,"gamma_exposure_flip":9.117169437183176,"gamma_exposure_flip_distance_pct":-83.82907189702193,"call_wall":60,"call_wall_distance_pct":6.420714550025071,"put_wall":55,"put_wall_distance_pct":-2.4476783291436846,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":788},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"MPLX","price":56.38,"totalOi":73678,"analysisCoverage":0.9444,"avgIvPct":40,"ivRank":32.8,"iv52wHighPct":65.87,"iv52wLowPct":27.4,"frontDte":14,"frontAtmIvPct":21.5985,"backAtmIvPct":19.9511,"termPremiumPp":1.6474,"expectedMoveFrontPct":4.23,"straddleFrontPct":3.86,"straddle30dPct":3.86,"riskReversalFrontPp":0.7,"riskReversal30dPp":0.7,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.36,"putCallOiFrontRatio":0.781,"putCallVolumeFrontRatio":5.312,"optionVolume":1700,"volumeOiRatio":0.023073,"netDeltaNormalized":0.099184,"dealerDeltaNormalized":-0.089959,"gexPer100kOi":4902098.65903,"vannaPer100kOi":4121.990282,"charmPer100kOi":-1313724.585358,"weekendDeltaShiftPer100kOi":-3941175.113331,"ivSurfaceRangePp":186.9,"gammaFlipDistancePct":2.270309,"maxPainDistancePct":-2.447676,"peakCallDistancePct":6.420717,"peakPutDistancePct":-2.447676},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/MPLX.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."}