{"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/SPHD","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/SPHD.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/SPHD.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":"SPHD","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":50.61000061035156,"previous_close":50.130001068115234,"delta_neutral":47.56545762274514,"gamma_neutral":41.174381198090465,"gamma_max":51.26940997427933,"total_open_interest":787,"previous_open_interest":1335,"listed_contracts":59,"listed_calls":37,"listed_puts":23,"gamma_max_distance_pct":1.302923050731779,"delta_neutral_distance_pct":-6.015694429736286,"gamma_neutral_distance_pct":-18.64378442692841,"open_interest_change_1d_pct":-41.048689138576776,"call_open_interest":579,"put_open_interest":208,"put_call_open_interest_ratio":0.3592400690846287,"nearest_expiration_max_pain":49,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":-3.181190655868634,"all_expiration_max_pain":49,"net_gamma_exposure":181833.61878640798,"net_gamma_exposure_per_100k_open_interest":23104652.958882842,"gamma_exposure_flip":41.174381198090465,"gamma_exposure_flip_distance_pct":-18.64378442692841,"call_wall":51,"call_wall_distance_pct":0.7705974806265239,"put_wall":51,"put_wall_distance_pct":0.7705974806265239,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3683},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.8333,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":50.61,"totalOi":1333,"analysisCoverage":0.8333,"avgIvPct":145.5,"ivRank":68.9,"iv52wHighPct":200.5,"iv52wLowPct":23.9,"frontDte":35,"termPremiumPp":-1.7154,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.462,"putCallOiFrontRatio":0.315,"putCallVolumeFrontRatio":0,"optionVolume":74,"volumeOiRatio":0.055514,"netDeltaNormalized":0.255084,"dealerDeltaNormalized":-0.249535,"gexPer100kOi":24420793.698425,"vannaPer100kOi":0,"charmPer100kOi":-57839.459865,"weekendDeltaShiftPer100kOi":-173518.379595,"ivSurfaceRangePp":69.1,"gammaFlipDistancePct":-3.991306,"maxPainDistancePct":-3.181189,"peakCallDistancePct":-3.181189,"peakPutDistancePct":-1.205295},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/SPHD.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."}