I need to find dividend yield for Apple at the release of their 2020 annual report, Form 10-K. That's it. I can't find it anywhere.
Formula for trailing dividend yield: dividend per share divided by share price.
The dividend per share can be found in the financial statements, while the share price can be found from financial data websites (e.g. Yahoo Finance).
To calculate the current (trailing) dividend yield, you need the current share price. Share price is always fluctuating, so even if a dividend yield is somehow mentioned in the financial statements, it would not be the current dividend yield of the stock.
In your question:
I need to find dividend yield for apple at the release of their 2020 annual report, form 10-K. That's it. I can't find it anywhere.
You are looking in the annual report for the share price so you can calculate the dividend yield. You are expecting that the company uses a expected share price to set the dividend.
But you have it backwards.
Most if not all companies don't use dividend yield to set their dividend. The yield calculated is just a byproduct of the dividend amount and the current price. The corporation doesn't control the current price of a share of their stock. They decide how much of retained earning they will return to the shareholders, when setting the dividend per share.
They make this decision to set the amount of money that will be returned at a moment unrelated to the filing of the annual report. These reports take time to produce, so if if the board did vote to set the yield this way it would never match reality, because the price per share is always changing.
From the comments:
I'm not sure how to answer this homework question if we are asked to determine the P/E from 2020
To get the share price on a particular date there are literally hundreds of websites that will give you the daily close of individual stocks, mutual funds, and indexes going back years. Pick a date, get the closing price.
To answer the real question, here's how I would approach the homework problem as a student
Ask the professor what share price to use (or maybe what date's closing price to use).
If you get no answer, I would use the closing price for the ex-div date of the dividend, and qualify the DY by adding "as of DD/MM close of trading" to be explicit about what share price you used. To me, the point of the question is to calculate (and probably apply) the dividend yield, so the date used is not the primary component.
All other answers are correct