{"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/BIOA","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/BIOA.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/BIOA.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":"BIOA","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":4.840000152587891,"previous_close":5.349999904632568,"delta_neutral":5.4065047169993194,"gamma_neutral":4.840000152587891,"gamma_max":7.602437583610422,"total_open_interest":3717,"previous_open_interest":12140,"listed_contracts":32,"listed_calls":32,"listed_puts":18,"gamma_max_distance_pct":57.075151734147965,"delta_neutral_distance_pct":11.70463939156129,"gamma_neutral_distance_pct":0,"open_interest_change_1d_pct":-69.38220757825371,"call_open_interest":1935,"put_open_interest":1782,"put_call_open_interest_ratio":0.9209302325581395,"nearest_expiration_max_pain":10,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":106.6115637342102,"all_expiration_max_pain":10,"net_gamma_exposure":8157.5975140231785,"net_gamma_exposure_per_100k_open_interest":219467.24546739785,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":10,"call_wall_distance_pct":106.6115637342102,"put_wall":5,"put_wall_distance_pct":3.305781867105094,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":"below","open_interest_rank":2649},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.8889,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":4.84,"totalOi":12252,"analysisCoverage":0.8889,"avgIvPct":3860.9,"ivRank":100,"iv52wHighPct":3860.9,"iv52wLowPct":169.21,"frontDte":35,"termPremiumPp":-61.04,"riskReversalFrontPp":4.62,"riskReversal30dPp":4.62,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.211,"putCallOiFrontRatio":10.778,"putCallVolumeFrontRatio":40,"optionVolume":424,"volumeOiRatio":0.034607,"netDeltaNormalized":0.280679,"dealerDeltaNormalized":-0.279877,"gexPer100kOi":62164.871041,"vannaPer100kOi":587.659158,"charmPer100kOi":3656.54587,"weekendDeltaShiftPer100kOi":10969.63761,"ivSurfaceRangePp":61,"gammaFlipDistancePct":72.727273,"maxPainDistancePct":54.958678,"peakCallDistancePct":106.61157,"peakPutDistancePct":3.305785},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/BIOA.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."}