ISFR
The Implied Secured Funding Rate is a reference benchmark for onchain funding. It describes the cost of capital using lending and derivatives funding rates.
Reading the benchmark
ISFR is expressed as an annualized rate. Read it alongside its observation time and underlying sources. It is a reference value, not an offered deposit rate or a guaranteed return.
Methodology
The base-rate plus spread model combines a lending base rate with a dampened derivatives spread:
ISFR = R_base + alpha * (R_deriv - R_base)
R_baserepresents the base lending rate.R_derivrepresents the derivatives funding rate.alphacontrols how much of the spread contributes to the benchmark.
Source coverage and calculation parameters are part of the integration documentation provided with data access.
Data access
Request data access to discuss ISFR data and your integration.