{"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/SIL","markdown_url":null,"history_url":"https://halfonadouble.com/api/v1/history/SIL.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/SIL.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":"SIL","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":82.5,"previous_close":82.30000305175781,"delta_neutral":80.01407910575014,"gamma_neutral":74.23326783967048,"gamma_max":107.57568759957823,"total_open_interest":95173,"previous_open_interest":133597,"listed_contracts":486,"listed_calls":315,"listed_puts":242,"gamma_max_distance_pct":30.394772847973613,"delta_neutral_distance_pct":-3.0132374475755856,"gamma_neutral_distance_pct":-10.020281406460029,"open_interest_change_1d_pct":-28.76112487555858,"call_open_interest":66360,"put_open_interest":28813,"put_call_open_interest_ratio":0.4341922845087402,"nearest_expiration_max_pain":90,"nearest_expiration_max_pain_expiry":"2026-11-20","nearest_expiration_max_pain_distance_pct":9.090909090909092,"all_expiration_max_pain":80,"net_gamma_exposure":1117095.3447297064,"net_gamma_exposure_per_100k_open_interest":1173752.3717122572,"gamma_exposure_flip":74.23326783967048,"gamma_exposure_flip_distance_pct":-10.020281406460029,"call_wall":100,"call_wall_distance_pct":21.21212121212121,"put_wall":80,"put_wall_distance_pct":-3.0303030303030303,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":"above","open_interest_rank":632},"history_summary":null,"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":null,"directional_score":null,"catalyst_reasons":[],"features":{"price":82.5,"totalOi":133682,"analysisCoverage":1,"avgIvPct":207.4,"ivRank":87.3,"iv52wHighPct":230.3,"iv52wLowPct":49.6,"frontDte":35,"termPremiumPp":0.581,"riskReversalFrontPp":-1.46,"riskReversal30dPp":-1.46,"butterflyFrontPp":1.13,"butterfly30dPp":1.13,"putCallOiRatio":0.433,"putCallOiFrontRatio":0.843,"putCallVolumeFrontRatio":0.179,"optionVolume":3849,"volumeOiRatio":0.028792,"netDeltaNormalized":0.063127,"dealerDeltaNormalized":-0.062283,"gexPer100kOi":-1197627.72101,"vannaPer100kOi":1381.637019,"charmPer100kOi":44932.002813,"weekendDeltaShiftPer100kOi":134796.756482,"ivSurfaceRangePp":23.2,"gammaFlipDistancePct":null,"maxPainDistancePct":0.606061,"peakCallDistancePct":23.636364,"peakPutDistancePct":3.030303},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/SIL.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."}