{"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/EXTR","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/EXTR.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/EXTR.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":"EXTR","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":21.729999542236328,"previous_close":22.399999618530273,"delta_neutral":19.670248856144745,"gamma_neutral":13.635305185251397,"gamma_max":24.43637188794091,"total_open_interest":4541,"previous_open_interest":5470,"listed_contracts":107,"listed_calls":67,"listed_puts":49,"gamma_max_distance_pct":12.454543960961624,"delta_neutral_distance_pct":-9.47883446609408,"gamma_neutral_distance_pct":-37.251240347480795,"open_interest_change_1d_pct":-16.983546617915906,"call_open_interest":3512,"put_open_interest":1029,"put_call_open_interest_ratio":0.292995444191344,"nearest_expiration_max_pain":23,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":5.844456900678658,"all_expiration_max_pain":20,"net_gamma_exposure":207486.3859773412,"net_gamma_exposure_per_100k_open_interest":4569178.286222004,"gamma_exposure_flip":13.635305185251397,"gamma_exposure_flip_distance_pct":-37.251240347480795,"call_wall":25,"call_wall_distance_pct":15.048322718128976,"put_wall":23,"put_wall_distance_pct":5.844456900678658,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2511},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":21.73,"totalOi":5507,"analysisCoverage":1,"avgIvPct":353.2,"ivRank":69.1,"iv52wHighPct":481.1,"iv52wLowPct":67.4,"frontDte":35,"termPremiumPp":8.0625,"riskReversalFrontPp":2.69,"riskReversal30dPp":2.69,"butterflyFrontPp":10.46,"butterfly30dPp":10.46,"putCallOiRatio":0.266,"putCallOiFrontRatio":0.323,"putCallVolumeFrontRatio":0.667,"optionVolume":47,"volumeOiRatio":0.008535,"netDeltaNormalized":0.211562,"dealerDeltaNormalized":-0.211524,"gexPer100kOi":1529228.981297,"vannaPer100kOi":944.252769,"charmPer100kOi":-60650.081714,"weekendDeltaShiftPer100kOi":-181932.086435,"ivSurfaceRangePp":44.1,"gammaFlipDistancePct":-35.480902,"maxPainDistancePct":-7.961344,"peakCallDistancePct":-21.767142,"peakPutDistancePct":1.242522},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/EXTR.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."}