{"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/GL","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/GL.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/GL.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":"GL","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":168.77000427246094,"previous_close":167.58999633789062,"delta_neutral":131.15501852181077,"gamma_neutral":104.98158680580667,"gamma_max":164.79009130003223,"total_open_interest":3660,"previous_open_interest":5078,"listed_contracts":103,"listed_calls":74,"listed_puts":53,"gamma_max_distance_pct":-2.3581873980423484,"delta_neutral_distance_pct":-22.28771985448601,"gamma_neutral_distance_pct":-37.796063193596154,"open_interest_change_1d_pct":-27.924379677038203,"call_open_interest":3056,"put_open_interest":604,"put_call_open_interest_ratio":0.19764397905759162,"nearest_expiration_max_pain":170,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":0.7287999623163885,"all_expiration_max_pain":135,"net_gamma_exposure":506135.9536844687,"net_gamma_exposure_per_100k_open_interest":13828851.193564719,"gamma_exposure_flip":104.98158680580667,"gamma_exposure_flip_distance_pct":-37.796063193596154,"call_wall":145,"call_wall_distance_pct":-14.084258855671317,"put_wall":185,"put_wall_distance_pct":9.616635253109012,"gamma_max_cross_direction":"above","delta_neutral_cross_direction":null,"open_interest_rank":2658},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":168.77,"totalOi":4857,"analysisCoverage":1,"avgIvPct":106.9,"ivRank":99.4,"iv52wHighPct":107.3,"iv52wLowPct":39.2,"frontDte":35,"termPremiumPp":0,"riskReversalFrontPp":15.89,"riskReversal30dPp":15.89,"butterflyFrontPp":1.03,"butterfly30dPp":1.03,"putCallOiRatio":0.155,"putCallOiFrontRatio":0.67,"putCallVolumeFrontRatio":0,"optionVolume":234,"volumeOiRatio":0.048178,"netDeltaNormalized":0.332735,"dealerDeltaNormalized":-0.318625,"gexPer100kOi":93107346.71608,"vannaPer100kOi":-473.54334,"charmPer100kOi":-38995.264567,"weekendDeltaShiftPer100kOi":-117006.382541,"ivSurfaceRangePp":40,"gammaFlipDistancePct":-16.643953,"maxPainDistancePct":-17.046869,"peakCallDistancePct":0.728803,"peakPutDistancePct":null},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/GL.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."}