My method is simple. My wife is a realtor and she never looks at the transaction as complete until she receives her check. It happens, things change doing the process, even at closing the transaction is not acceptable and the differences between the buyer and seller are not settled and you go back to the drawing board.

The acid test in investing is the share price of the stock. You bought the stock to make a return on the money you invested. If your share price is below your purchase, its red, if above its green, but only if you consider the time value of the money you invested.

All I really care about is the stock appreciation to the point that I am willing to sell to achieve a return on my investment, based on how much of a return I hope for.