Quarterly rate
From ACT Wiki
The quarterly rate of interest (or yield) is a quoting convention for the simple interest nominal annual rate for compounding once per quarter (four times per year).
Example
If the quoted quarterly rate is 6.00%,
the amount of interest compounded quarterly is:
= 6.00% / 4
= 1.50%.
Not to be confused with the related annual effective rate, which in this case is:
= 1.0154 - 1
= 6.14%.