This morning a "Potential Dividend Run Alert" went out for Canadian Imperial Bank Of Commerce (Toronto, Ontario) (NYSE: CM), at our DividendChannel.com Dividend Alerts service (a free email alerts feature). Let's look at the situation in greater detail, shall we?First of all, what is a "Dividend Run" anyway? This is an interesting concept which we first learned about at a past ValueForum conference. And to best explain the concept, we need to start with the expected behavior of a stock on its ex-dividend da ...