Example of an SEC yield calculation
Imagine that over the most recent 30-day period, a bond fund earned $15,000 in dividends and $5,000 in interest, for a total of $20,000. It had $7,000 in expenses, but $3,000 of them were reimbursed, leaving $4,000 in net expenses. There are 175,000 outstanding shares entitled to receive distributions, and on the day of the SEC yield calculation, the highest share price was $80.
Here's how that would look plugged into the SEC yield formula:
SEC yield = 2 x ((($20,000 - $4,000) / (175,000 x $80) + 1) ^ 6 - 1) = 1.38%
That's the process you could follow to calculate it yourself. You can often find SEC yields for bond funds online, and there are also online calculators to handle the math for you.