{"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/USPH","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/USPH.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/USPH.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":"USPH","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":83.72000122070312,"previous_close":82.5999984741211,"delta_neutral":81.62876550518143,"gamma_neutral":63.20860092163086,"gamma_max":89.29885798045987,"total_open_interest":606,"previous_open_interest":444,"listed_contracts":20,"listed_calls":11,"listed_puts":12,"gamma_max_distance_pct":6.6637084070862995,"delta_neutral_distance_pct":-2.497892600370088,"gamma_neutral_distance_pct":-24.499999999999996,"open_interest_change_1d_pct":36.486486486486484,"call_open_interest":495,"put_open_interest":111,"put_call_open_interest_ratio":0.22424242424242424,"nearest_expiration_max_pain":90,"nearest_expiration_max_pain_expiry":"2026-10-16","nearest_expiration_max_pain_distance_pct":7.501192890264667,"all_expiration_max_pain":70,"net_gamma_exposure":139105.77762426162,"net_gamma_exposure_per_100k_open_interest":22954748.782881454,"gamma_exposure_flip":63.20860092163086,"gamma_exposure_flip_distance_pct":-24.499999999999996,"call_wall":90,"call_wall_distance_pct":7.501192890264667,"put_wall":90,"put_wall_distance_pct":7.501192890264667,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":3950},"history_summary":null,"advanced_options":{"data_through":"2026-10-02","analysis_coverage":0.8333,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"symbol":"USPH","price":83.72,"totalOi":606,"analysisCoverage":0.8333,"avgIvPct":44.6,"ivRank":7,"iv52wHighPct":96.29,"iv52wLowPct":40.7,"frontDte":14,"frontAtmIvPct":30.9425,"backAtmIvPct":39.56,"termPremiumPp":-8.6175,"expectedMoveFrontPct":6.06,"straddleFrontPct":null,"straddle30dPct":null,"riskReversalFrontPp":null,"riskReversal30dPp":null,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.224,"putCallOiFrontRatio":0.121,"putCallVolumeFrontRatio":0,"optionVolume":57,"volumeOiRatio":0.094059,"netDeltaNormalized":0.059635,"dealerDeltaNormalized":-0.053927,"gexPer100kOi":19339633.663366,"vannaPer100kOi":1980.19802,"charmPer100kOi":-907755.775578,"weekendDeltaShiftPer100kOi":-2723432.343234,"ivSurfaceRangePp":99.9,"gammaFlipDistancePct":0.262781,"maxPainDistancePct":-16.38796,"peakCallDistancePct":1.528906,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/USPH.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."}