30 day SEC yield calculator

Calculate the 30-day SEC yield for a money market fund based on its current net asset value and expense ratio.

Input Parameters

Calculation Results

30-day SEC Yield

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Calculation Formula

SEC Yield = (365 × Daily Income) ÷ (NAV × Days in Investment Period)

Where:
NAV: Net Asset Value of the fund
Daily Income: Income received per day
Days in Investment Period: Number of days in the period being calculated (typically 30)

30 day SEC yield calculator Calculator Usage Guide

Learn how to use the 30 day SEC yield calculator and its working principles

What is 30-day SEC yield?

The 30-day SEC yield is a standardized measure of a money market fund's return over a 30-day period. It's expressed as an annual percentage rate and is required to be disclosed by publicly-traded money market funds in the United States. The SEC yield provides investors with a way to compare the performance of different money market funds.

How to use this calculator

  1. Enter the Net Asset Value (NAV) of the money market fund. This is typically found in the fund's prospectus or on financial websites.
  2. Enter the Daily Income the fund generates per day. This can be found in the fund's prospectus or financial statements.
  3. The calculator automatically assumes a 30-day investment period, but you can adjust this if needed.
  4. Click the Calculate button to see the 30-day SEC yield.

Important considerations

The SEC yield is a measure of return based on historical performance and does not guarantee future results. It does not account for taxes, fees, or other investment costs. Additionally, money market funds are designed to be low-risk investments, but they are not FDIC insured and may still lose value.

Example

Suppose a money market fund has a NAV of $1,000,000 and generates $5,250 in daily income over 30 days:

Calculation:
SEC Yield = (365 × $5,250) ÷ ($1,000,000 × 30) = 0.064125 or 6.4125%