Looking at the universe of stocks we cover at Dividend Channel, on 8/27/20, Allstate Corp (Symbol: ALL), Piedmont Office Realty Trust Inc (Symbol: PDM), and Cboe Global Markets Inc (Symbol: CBOE) will all trade ex-dividend for their respective upcoming dividends. Allstate Corp will pay its quarterly dividend of $0.54 on 10/1/20, Piedmont Office Realty Trust Inc will pay its quarterly dividend of $0.21 on 9/18/20, and Cboe Global Markets Inc will pay its quarterly dividend of $0.42 on 9/15/20. As a percentage of ALL's recent stock price of $94.57, this dividend works out to approximately 0.57%, so look for shares of Allstate Corp to trade 0.57% lower — all else being equal — when ALL shares open for trading on 8/27/20. Similarly, investors should look for PDM to open 1.32% lower in price and for CBOE to open 0.45% lower, all else being equal.
Below are dividend history charts for ALL, PDM, and CBOE, showing historical dividends prior to the most recent ones declared.
Allstate Corp (Symbol: ALL):
Piedmont Office Realty Trust Inc (Symbol: PDM):

Cboe Global Markets Inc (Symbol: CBOE):

In general, dividends are not always predictable, following the ups and downs of company profits over time. Therefore, a good first due diligence step in forming an expectation of annual yield going forward, is looking at the history above, for a sense of stability over time. This can help in judging whether the most recent dividends from these companies are likely to continue. If they do continue, the current estimated yields on annualized basis would be 2.28% for Allstate Corp, 5.26% for Piedmont Office Realty Trust Inc, and 1.81% for Cboe Global Markets Inc.
In Tuesday trading, Allstate Corp shares are currently down about 0.5%, Piedmont Office Realty Trust Inc shares are up about 0.5%, and Cboe Global Markets Inc shares are trading flat on the day.
The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.