{"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/OPRX","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/OPRX.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/OPRX.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":"OPRX","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":8.5,"previous_close":8.850000381469727,"delta_neutral":null,"gamma_neutral":null,"gamma_max":null,"total_open_interest":2347,"previous_open_interest":2790,"listed_contracts":14,"listed_calls":12,"listed_puts":4,"gamma_max_distance_pct":null,"delta_neutral_distance_pct":null,"gamma_neutral_distance_pct":null,"open_interest_change_1d_pct":-15.878136200716847,"call_open_interest":920,"put_open_interest":1427,"put_call_open_interest_ratio":1.5510869565217391,"nearest_expiration_max_pain":7.5,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":-11.76470588235294,"all_expiration_max_pain":7.5,"net_gamma_exposure":-55945.008642629226,"net_gamma_exposure_per_100k_open_interest":-2383681.6635121102,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":7.5,"call_wall_distance_pct":-11.76470588235294,"put_wall":7.5,"put_wall_distance_pct":-11.76470588235294,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2979},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.7778,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":8.5,"totalOi":2796,"analysisCoverage":0.7778,"avgIvPct":438.8,"ivRank":100,"iv52wHighPct":438.8,"iv52wLowPct":80.4,"frontDte":null,"termPremiumPp":null,"riskReversalFrontPp":-25.79,"riskReversal30dPp":-25.79,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":1.253,"putCallOiFrontRatio":1.485,"putCallVolumeFrontRatio":0,"optionVolume":405,"volumeOiRatio":0.14485,"netDeltaNormalized":0.147768,"dealerDeltaNormalized":-0.147765,"gexPer100kOi":-78933.476395,"vannaPer100kOi":2074.391989,"charmPer100kOi":-81366.237482,"weekendDeltaShiftPer100kOi":-244062.947067,"ivSurfaceRangePp":18.1,"gammaFlipDistancePct":null,"maxPainDistancePct":-11.764706,"peakCallDistancePct":17.647059,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/OPRX.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."}