Stocks Upcoming Stock Split Calendar Includes CBB, AOS, RELV October 4, 2016 by Jack Delaney Our upcoming stock split calendar helps investors know whether or not a stock they own will split. Stock splits can cause panic, because a stock price can seemingly lose half of its value in just one day. But only the price of the stock is changing. The value remains the same. Check out our list to see if any of these stocks are in your portfolio...