BSBY
From ACT Wiki
Interest rates - reference rates - forward-looking benchmarks - USD - SOFR.
Abbreviation for Bloomberg Short-Term Bank Yield Index.
BSBY measures the average yields at which systemically important banks access USD unsecured wholesale funding.
It is a forward-looking term rate and reflects those banks’ funding costs for maturities of overnight, 1, 3, 6 & 12 months.
BSBY is administered by Bloomberg Index Services Limited.