{"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/BLKB","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/BLKB.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/BLKB.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":"BLKB","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":41.7599983215332,"previous_close":42.54999923706055,"delta_neutral":34.05554654565391,"gamma_neutral":15.413546692472615,"gamma_max":39.21759469137121,"total_open_interest":218,"previous_open_interest":211,"listed_contracts":24,"listed_calls":22,"listed_puts":8,"gamma_max_distance_pct":-6.088131542981942,"delta_neutral_distance_pct":-18.44935844239858,"gamma_neutral_distance_pct":-63.0901644827779,"open_interest_change_1d_pct":3.3175355450236967,"call_open_interest":164,"put_open_interest":54,"put_call_open_interest_ratio":0.32926829268292684,"nearest_expiration_max_pain":40,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":-4.214555537052487,"all_expiration_max_pain":35,"net_gamma_exposure":10962.798065348336,"net_gamma_exposure_per_100k_open_interest":5028806.451994649,"gamma_exposure_flip":15.413546692472615,"gamma_exposure_flip_distance_pct":-63.0901644827779,"call_wall":40,"call_wall_distance_pct":-4.214555537052487,"put_wall":40,"put_wall_distance_pct":-4.214555537052487,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":4450},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.7222,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"BLKB","price":41.76,"totalOi":218,"analysisCoverage":0.7222,"avgIvPct":77,"ivRank":18.7,"iv52wHighPct":149.51,"iv52wLowPct":60.3,"frontDte":14,"frontAtmIvPct":37.1208,"backAtmIvPct":48.9002,"termPremiumPp":-11.7794,"expectedMoveFrontPct":7.27,"straddleFrontPct":17.78,"straddle30dPct":17.78,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.329,"putCallOiFrontRatio":0.111,"putCallVolumeFrontRatio":0,"optionVolume":2,"volumeOiRatio":0.009174,"netDeltaNormalized":0.361284,"dealerDeltaNormalized":-0.361284,"gexPer100kOi":2803559.633028,"vannaPer100kOi":0,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":19,"gammaFlipDistancePct":null,"maxPainDistancePct":-16.187739,"peakCallDistancePct":null,"peakPutDistancePct":-4.214559},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/BLKB.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."}