Ex-dividend date-market price effect Find a list of common stock ex-dividend date data. (You can go, via Google, to stocks-wsj.com. Select the reference which is labeled Market Data; then move your cursor over U.S. Stocks and select Dividends under the Stocks and Trading Statistics category. Scroll down until you see the Dividend Declarations Table, which includes the relevant ex-dividend dates. Select several stocks, preferably of large and well-known companies. Go to a stock listing on the ex-dividend date and determine what happened to the market price of a share of stock on that date.