{"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/PTGX","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/PTGX.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/PTGX.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":"PTGX","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":128.75,"previous_close":136.5500030517578,"delta_neutral":88.30613303969069,"gamma_neutral":75.03157817808551,"gamma_max":114.36007613690808,"total_open_interest":6325,"previous_open_interest":6918,"listed_contracts":71,"listed_calls":53,"listed_puts":27,"gamma_max_distance_pct":-11.17663989366363,"delta_neutral_distance_pct":-31.412712202181986,"gamma_neutral_distance_pct":-41.72304607527339,"open_interest_change_1d_pct":-8.571841572708875,"call_open_interest":4689,"put_open_interest":1636,"put_call_open_interest_ratio":0.3489016847941992,"nearest_expiration_max_pain":135,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":4.854368932038835,"all_expiration_max_pain":105,"net_gamma_exposure":642006.6944321857,"net_gamma_exposure_per_100k_open_interest":10150303.469283568,"gamma_exposure_flip":75.03157817808551,"gamma_exposure_flip_distance_pct":-41.72304607527339,"call_wall":125,"call_wall_distance_pct":-2.912621359223301,"put_wall":80,"put_wall_distance_pct":-37.86407766990291,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":2296},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":128.75,"totalOi":6959,"analysisCoverage":1,"avgIvPct":774.4,"ivRank":91.3,"iv52wHighPct":843.2,"iv52wLowPct":54.6,"frontDte":35,"termPremiumPp":0,"riskReversalFrontPp":46.48,"riskReversal30dPp":46.48,"butterflyFrontPp":1.28,"butterfly30dPp":1.28,"putCallOiRatio":0.353,"putCallOiFrontRatio":0.547,"putCallVolumeFrontRatio":0.812,"optionVolume":84,"volumeOiRatio":0.012071,"netDeltaNormalized":0.440591,"dealerDeltaNormalized":-0.440591,"gexPer100kOi":12847827.848829,"vannaPer100kOi":-1322.029027,"charmPer100kOi":0,"weekendDeltaShiftPer100kOi":0,"ivSurfaceRangePp":8.6,"gammaFlipDistancePct":-20.978641,"maxPainDistancePct":-22.330097,"peakCallDistancePct":0.970874,"peakPutDistancePct":-2.912621},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/PTGX.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."}