{"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/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=2026-10-16&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":"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":42.939998626708984,"previous_close":44.119998931884766,"delta_neutral":46.31446954271095,"gamma_neutral":39.660279104516846,"gamma_max":58.07910820345171,"total_open_interest":43783,"previous_open_interest":69294,"listed_contracts":239,"listed_calls":151,"listed_puts":107,"gamma_max_distance_pct":35.25642771522143,"delta_neutral_distance_pct":7.858572482354536,"gamma_neutral_distance_pct":-7.637912499028656,"open_interest_change_1d_pct":-36.81559731001241,"call_open_interest":27236,"put_open_interest":16547,"put_call_open_interest_ratio":0.6075414892054634,"nearest_expiration_max_pain":47.5,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":10.619472564339262,"all_expiration_max_pain":55,"net_gamma_exposure":331388.15726955544,"net_gamma_exposure_per_100k_open_interest":756887.7355812882,"gamma_exposure_flip":39.660279104516846,"gamma_exposure_flip_distance_pct":-7.637912499028656,"call_wall":50,"call_wall_distance_pct":16.441550067725537,"put_wall":52.5,"put_wall_distance_pct":22.26362757111181,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":991},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":42.94,"totalOi":69225,"analysisCoverage":1,"avgIvPct":440.4,"ivRank":90.8,"iv52wHighPct":478.5,"iv52wLowPct":63.93,"frontDte":35,"termPremiumPp":3.6132,"riskReversalFrontPp":-4.12,"riskReversal30dPp":-4.12,"butterflyFrontPp":12.1,"butterfly30dPp":12.1,"putCallOiRatio":0.626,"putCallOiFrontRatio":0.673,"putCallVolumeFrontRatio":0.672,"optionVolume":1549,"volumeOiRatio":0.022376,"netDeltaNormalized":-0.120961,"dealerDeltaNormalized":0.120433,"gexPer100kOi":-478945.742145,"vannaPer100kOi":1882.267967,"charmPer100kOi":-1054.532322,"weekendDeltaShiftPer100kOi":-3162.152402,"ivSurfaceRangePp":38.5,"gammaFlipDistancePct":-51.700047,"maxPainDistancePct":22.263624,"peakCallDistancePct":16.441546,"peakPutDistancePct":16.441546},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/IONS.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."}