{"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/EPD","markdown_url":"https://halfonadouble.com/stock/EPD.md","history_url":"https://halfonadouble.com/api/v1/history/EPD.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/EPD.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":"EPD","page_tier":"A","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":36.81999969482422,"previous_close":35.56999969482422,"delta_neutral":33.15939805498102,"gamma_neutral":28.89960916334055,"gamma_max":39.4383698325192,"total_open_interest":153234,"previous_open_interest":163177,"listed_contracts":331,"listed_calls":180,"listed_puts":178,"gamma_max_distance_pct":7.111271481251656,"delta_neutral_distance_pct":-9.941883949438953,"gamma_neutral_distance_pct":-21.51110971518296,"open_interest_change_1d_pct":-6.093383258670033,"call_open_interest":119976,"put_open_interest":33258,"put_call_open_interest_ratio":0.27720544108821765,"nearest_expiration_max_pain":36.5,"nearest_expiration_max_pain_expiry":"2026-10-23","nearest_expiration_max_pain_distance_pct":-0.8690920626737567,"all_expiration_max_pain":35,"net_gamma_exposure":21080747.570052207,"net_gamma_exposure_per_100k_open_interest":13757225.92247948,"gamma_exposure_flip":28.89960916334055,"gamma_exposure_flip_distance_pct":-21.51110971518296,"call_wall":35,"call_wall_distance_pct":-4.942964991604972,"put_wall":37,"put_wall_distance_pct":0.48886558030331506,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":478},"history_summary":{"first_date":"2020-12-01","last_date":"2026-10-16","session_count":1404,"trailing_window_sessions":252,"sessions_above_gamma_max_pct":6.349206349206349,"gamma_max_cross_count":16,"delta_neutral_cross_count":0,"gamma_max_prior_sessions_closer_pct":89.28571428571429,"gamma_max_prior_comparison_sessions":252,"delta_neutral_prior_sessions_closer_pct":38.88888888888889,"delta_neutral_prior_comparison_sessions":252,"open_interest_percentile_1y":1.1904761904761905,"open_interest_change_1d_contracts":-9943,"open_interest_change_z_252":-0.844146401345676,"open_interest_change_z_comparison_sessions":252,"open_interest_change_5_sessions_pct":-5.771158351730118,"open_interest_change_21_sessions_pct":-35.852879491290565,"call_put_open_interest_changes":{"one_session":{"call_change_contracts":-9855,"put_change_contracts":-88,"call_growth_pct":-7.590637058945861,"put_growth_pct":-0.26389971810711926,"call_minus_put_growth_pp":-7.326737340838742},"five_sessions":{"call_change_contracts":-6242,"put_change_contracts":-3143,"call_growth_pct":-4.945411906384193,"put_growth_pct":-8.634378176423725,"call_minus_put_growth_pp":3.6889662700395327},"call_change_surprise":{"z_score":-1.0732434548868546,"comparison_sessions":252},"put_change_surprise":{"z_score":0.0066347933846020845,"comparison_sessions":252},"call_minus_put_growth_surprise":{"z_score":-1.7965666260030069,"comparison_sessions":252}}},"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":45.57419545022758,"directional_score":27.83839982828472,"catalyst_reasons":[],"features":{"price":36.82,"totalOi":164759,"analysisCoverage":1,"avgIvPct":122.4,"ivRank":75.1,"iv52wHighPct":152.5,"iv52wLowPct":31.5,"frontDte":7,"termPremiumPp":3.755,"riskReversalFrontPp":-1.11,"riskReversal30dPp":7.88,"butterflyFrontPp":-3.72,"butterfly30dPp":-3.72,"putCallOiRatio":0.265,"putCallOiFrontRatio":0.378,"putCallVolumeFrontRatio":0.334,"optionVolume":6983,"volumeOiRatio":0.042383,"netDeltaNormalized":0.214964,"dealerDeltaNormalized":-0.199536,"gexPer100kOi":7909686.354008,"vannaPer100kOi":3063.869045,"charmPer100kOi":9733.003963,"weekendDeltaShiftPer100kOi":29199.618837,"ivSurfaceRangePp":185.5,"gammaFlipDistancePct":-5.730581,"maxPainDistancePct":-4.942966,"peakCallDistancePct":0.488865,"peakPutDistancePct":-10.374796},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/EPD.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":[{"direction":"above","event_count":45,"completed_path_count":45,"latest_cross_date":"2026-03-24","horizons":[{"sessions":1,"sample_size":45,"median_return_pct":0.14630215053208495,"p25_return_pct":-0.4579633334839128,"p75_return_pct":0.9087980899026737,"above_zero_pct":55.55555555555556,"median_interval_low_pct":-0.22479028964750292,"median_interval_high_pct":0.314170222147081,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0},{"sessions":3,"sample_size":45,"median_return_pct":0.6912380625909265,"p25_return_pct":-0.526533273808194,"p75_return_pct":1.4169978271670436,"above_zero_pct":66.66666666666666,"median_interval_low_pct":0.22523038538178053,"median_interval_high_pct":0.8383273381924905,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0.22523038538178053},{"sessions":5,"sample_size":45,"median_return_pct":0.9701202776839057,"p25_return_pct":-1.114699520135931,"p75_return_pct":2.230603184175628,"above_zero_pct":66.66666666666666,"median_interval_low_pct":0.5880255793615508,"median_interval_high_pct":1.7671525228551532,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0.5880255793615508},{"sessions":10,"sample_size":45,"median_return_pct":0.49155100203486235,"p25_return_pct":-2.928159978813294,"p75_return_pct":3.3562620960539746,"above_zero_pct":51.11111111111111,"median_interval_low_pct":-0.9633948012255145,"median_interval_high_pct":2.3519709551014234,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0}]},{"direction":"below","event_count":45,"completed_path_count":45,"latest_cross_date":"2026-03-27","horizons":[{"sessions":1,"sample_size":45,"median_return_pct":0.12295363571532825,"p25_return_pct":-0.5091572160322966,"p75_return_pct":0.5714280264718097,"above_zero_pct":57.77777777777777,"median_interval_low_pct":-0.13436652641002356,"median_interval_high_pct":0.322848405955245,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0},{"sessions":3,"sample_size":45,"median_return_pct":0.3135598344151891,"p25_return_pct":-1.0014783367353397,"p75_return_pct":1.9565181185333014,"above_zero_pct":53.333333333333336,"median_interval_low_pct":-0.21522200779729994,"median_interval_high_pct":0.7490593628312725,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0},{"sessions":5,"sample_size":45,"median_return_pct":0.6201120013214156,"p25_return_pct":-1.6218158507917635,"p75_return_pct":1.644896716656663,"above_zero_pct":55.55555555555556,"median_interval_low_pct":-0.4437802206136543,"median_interval_high_pct":1.1610466557464338,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0},{"sessions":10,"sample_size":45,"median_return_pct":-0.3497370455255444,"p25_return_pct":-2.426204579765512,"p75_return_pct":2.750068626496094,"above_zero_pct":46.666666666666664,"median_interval_low_pct":-1.3998754593076534,"median_interval_high_pct":1.1985006954321475,"median_interval_nominal_coverage_pct":92.75457398374556,"confidence_floor_pct":0}]}],"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."}