I simply do not see the need for this question in my approach. A better question is "For what purpose am I holding the stocks in my portfolio"? Psychologically if you have conceded that you will only hold great companies at a great (or fair) price then you should see no need to sell them unless you are going against your initial conditions or your analysis was wrong about them being a "great company." The market is a weighing machine in the long run, the cream always rises to the top. Consistently improving metrics over a number of years (be it cash flow, profit, income stream etc) cannot be ignored forever.
V
Here is a scenario for you to contemplate using FGE as an example.
Say it met all your criteria and you brought it on 1/7/08 at 70 cents. 5 Months later on the 1/12/08 the market is valuing it at 15 cent. That’s near an 80% drawdown on your purchase price. These are the time you realise the significance of question 4. Today FGE is priced by the market at $4.50, that’s something like an 80% CAGR on your 70 cent buy price – so long as you made it through the 80% drawdown without locking in an actual loss.
You recently purchased DTL, the market could easily take its price 50% below your purchase price in spite of nothing materially changing to the long term outlook of the business, this sort of drop occurred in 2008. Now is the time to be considering question 4 – not when the market is showing you the relevance of the question and trust me, one day it will.
“Can I hold this stock for as long as it takes” – It’s the implications of this question that need to be considered. Am I Psychologically prepeared to hold no matter what the market is saying. Do I have the financial position to hold no matter what. (Loss of employment, loans recalled, source of alternative available cash flow etc etc)
If you can’t stick to the investment discipline in the darkest of days and they will come, then you are better off recognising that now and putting in place a strategy that you can live with under worst case scenario’s, for most that will mean limiting drawdown’s through controlling market price risk.
Sorry Robusta to clog up your thread but I hope addressing the questions Oddson proposed has some relevance for you.