{"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/HPP","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/HPP.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/HPP.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":"HPP","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":10.300000190734863,"previous_close":11.170000076293945,"delta_neutral":11.19419874254981,"gamma_neutral":15.621724170685392,"gamma_max":18.64893556040498,"total_open_interest":11553,"previous_open_interest":12428,"listed_contracts":50,"listed_calls":42,"listed_puts":31,"gamma_max_distance_pct":81.05762344723271,"delta_neutral_distance_pct":8.681539177244902,"gamma_neutral_distance_pct":51.66722214954488,"open_interest_change_1d_pct":-7.040553588670743,"call_open_interest":2481,"put_open_interest":9072,"put_call_open_interest_ratio":3.656590084643289,"nearest_expiration_max_pain":15,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":45.631065264376566,"all_expiration_max_pain":15,"net_gamma_exposure":-259945.00807292765,"net_gamma_exposure_per_100k_open_interest":-2250021.709278349,"gamma_exposure_flip":15.621724170685392,"gamma_exposure_flip_distance_pct":51.66722214954488,"call_wall":15,"call_wall_distance_pct":45.631065264376566,"put_wall":10,"put_wall_distance_pct":-2.9126231570822863,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":1855},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.9444,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":10.3,"totalOi":13017,"analysisCoverage":0.9444,"avgIvPct":851.3,"ivRank":71.4,"iv52wHighPct":1153.5,"iv52wLowPct":95.4,"frontDte":35,"termPremiumPp":-13.465,"riskReversalFrontPp":-44.25,"riskReversal30dPp":-44.25,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":2.926,"putCallOiFrontRatio":6.848,"putCallVolumeFrontRatio":0.1,"optionVolume":61,"volumeOiRatio":0.004686,"netDeltaNormalized":-0.043878,"dealerDeltaNormalized":0.043865,"gexPer100kOi":-241831.988938,"vannaPer100kOi":5953.752785,"charmPer100kOi":18706.307137,"weekendDeltaShiftPer100kOi":56118.92141,"ivSurfaceRangePp":52.6,"gammaFlipDistancePct":null,"maxPainDistancePct":21.359223,"peakCallDistancePct":-2.912621,"peakPutDistancePct":-27.184466},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/HPP.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":[],"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."}