{"path":"/derivatives/options_25delta_skew_all","tier":3,"parameters":{"a":["BTC"],"c":["native"],"e":["binance","bybit","deribit","okex"],"f":["csv","json"],"i":["10m","1h","24h"]},"queried":{"a":"BTC","path":"/v1/metrics/derivatives/options_25delta_skew_all"},"refs":{"docs":"https://docs.glassnode.com/basic-api/endpoints/derivatives#get-v1-metrics-derivatives-options_25delta_skew_all","studio":"https://studio.glassnode.com/charts/derivatives.Options25DeltaSkewAll","metric_variant":{"bulk":"/derivatives/options_25delta_skew_all/bulk","pit":"/derivatives/options_25delta_skew_all_pit"}},"bulk_supported":true,"timerange":{"min":1553904000,"max":1783664400},"modified":1783665230,"descriptors":{"name":"25 Delta Skew Normalized (All)","short_name":"25 Delta Skew Normalized (All)","group":"Delta Skew","tags":["options","skew","implied_volatility","volatility"],"description":{"default":"**Definition.** 25 Delta Skew Normalized (All) is the relative richness of put versus call implied volatility on options, computed as the difference between a 25-delta put's implied volatility and a 25-delta call's implied volatility, normalized by the at-the-money implied volatility. The individual series cover option contracts expiring 1 week, 1 month, 3 months, and 6 months from now.\n\n**Technical.** A 25-delta put has a delta of -25% and a 25-delta call has a delta of 25%, sampling the option surface at symmetric points either side of the money to expose the put-versus-call asymmetry in implied volatility.\n\n**Interpretation.** Negative readings mean calls trade at a higher implied volatility than puts. Positive readings mean puts trade at a higher implied volatility than calls.\n"},"data_sharing_group":"market"}}