{"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/IONS","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/IONS.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/IONS.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":"IONS","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":43.540000915527344,"previous_close":44,"delta_neutral":48.86749905981863,"gamma_neutral":45.47574149559574,"gamma_max":61.01662548501594,"total_open_interest":64651,"previous_open_interest":64554,"listed_contracts":275,"listed_calls":175,"listed_puts":117,"gamma_max_distance_pct":40.139237946722325,"delta_neutral_distance_pct":12.23587053805361,"gamma_neutral_distance_pct":4.4458900766308185,"open_interest_change_1d_pct":0.1502617963255569,"call_open_interest":38563,"put_open_interest":26088,"put_call_open_interest_ratio":0.676503384072816,"nearest_expiration_max_pain":52.5,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":20.578775599605738,"all_expiration_max_pain":55,"net_gamma_exposure":-698399.5368592952,"net_gamma_exposure_per_100k_open_interest":-1080260.9965186852,"gamma_exposure_flip":45.47574149559574,"gamma_exposure_flip_distance_pct":4.4458900766308185,"call_wall":50,"call_wall_distance_pct":14.836929142481656,"put_wall":40,"put_wall_distance_pct":-8.130456686014675,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":851},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"IONS","price":43.54,"totalOi":64651,"analysisCoverage":1,"avgIvPct":71.6,"ivRank":44.5,"iv52wHighPct":81.17,"iv52wLowPct":63.93,"frontDte":14,"frontAtmIvPct":44.8308,"backAtmIvPct":51.9928,"termPremiumPp":-7.162,"expectedMoveFrontPct":8.78,"straddleFrontPct":6.66,"straddle30dPct":6.66,"riskReversalFrontPp":-70.42,"riskReversal30dPp":-70.42,"butterflyFrontPp":3.85,"butterfly30dPp":3.85,"putCallOiRatio":0.677,"putCallOiFrontRatio":0.703,"putCallVolumeFrontRatio":0.113,"optionVolume":424,"volumeOiRatio":0.006558,"netDeltaNormalized":-0.130838,"dealerDeltaNormalized":0.130838,"gexPer100kOi":-338197.351936,"vannaPer100kOi":2754.791109,"charmPer100kOi":72251.009265,"weekendDeltaShiftPer100kOi":216753.027795,"ivSurfaceRangePp":53.5,"gammaFlipDistancePct":null,"maxPainDistancePct":26.320625,"peakCallDistancePct":14.836932,"peakPutDistancePct":-8.130455},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/IONS.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."}