{"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/APPN","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/APPN.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/APPN.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":"APPN","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":41.16999816894531,"previous_close":43.81999969482422,"delta_neutral":30.42913513906877,"gamma_neutral":29.89050033404306,"gamma_max":43.566195517681436,"total_open_interest":5564,"previous_open_interest":6799,"listed_contracts":102,"listed_calls":95,"listed_puts":49,"gamma_max_distance_pct":5.820251288093533,"delta_neutral_distance_pct":-26.08905394117413,"gamma_neutral_distance_pct":-27.39737269021892,"open_interest_change_1d_pct":-18.164435946462714,"call_open_interest":3251,"put_open_interest":2313,"put_call_open_interest_ratio":0.7114733928022147,"nearest_expiration_max_pain":27.5,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":-33.20378619607675,"all_expiration_max_pain":27.5,"net_gamma_exposure":103130.86057554437,"net_gamma_exposure_per_100k_open_interest":1853538.1124289066,"gamma_exposure_flip":29.89050033404306,"gamma_exposure_flip_distance_pct":-27.39737269021892,"call_wall":45,"call_wall_distance_pct":9.30289531551078,"put_wall":22.5,"put_wall_distance_pct":-45.34855234224461,"gamma_max_cross_direction":"below","delta_neutral_cross_direction":null,"open_interest_rank":2371},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":41.17,"totalOi":7108,"analysisCoverage":1,"avgIvPct":242.8,"ivRank":100,"iv52wHighPct":242.8,"iv52wLowPct":74,"frontDte":35,"termPremiumPp":4.5203,"riskReversalFrontPp":92.71,"riskReversal30dPp":92.71,"butterflyFrontPp":-3,"butterfly30dPp":-3,"putCallOiRatio":0.651,"putCallOiFrontRatio":1.63,"putCallVolumeFrontRatio":0.339,"optionVolume":893,"volumeOiRatio":0.125633,"netDeltaNormalized":0.257784,"dealerDeltaNormalized":-0.240701,"gexPer100kOi":1239022.228475,"vannaPer100kOi":-858.187957,"charmPer100kOi":-83202.025886,"weekendDeltaShiftPer100kOi":-249592.009004,"ivSurfaceRangePp":19.4,"gammaFlipDistancePct":0.947292,"maxPainDistancePct":-27.131406,"peakCallDistancePct":9.30289,"peakPutDistancePct":3.230508},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/APPN.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."}