@AGuy
1) Check out
http://www.berkshirehathaway.com/ and read WB's letters.
2) Read Charlie Munger's letters when he was at Wesco.
What do I use to decide to sell? (There is a lot of subjectivity)
1) Board. Are they owners or just paid to say yes to the CEO or Chairman? I like owners. Are they selling shares? (Think when Somens were selling at 20)
2) Management. Are they owners? Or salaried no matter what? I like owners. Are they selling shares? (Think when Somens were selling at 20 or when Jame Mworia sold Centum before the drop in profits)
3) Forecast/Future PE Ratio. I use the past/history to find a 'future' EPS. Subjective & many inputs go in this. The lower PE, the better. High PERs scare me. Makes me want to sell for cash or re-allocation.
4) NAV discounted by goodwill, etc. Subjective elements as well since some assets may be carried in the books at higher (e.g. goodwill) or lower (property) value than the 'real' value. What is the real value? Again, subjective. NAV per share gives you Price to Book. The lower the better. industry specific e.g. Scangroup has a high PB but that's OK.
5) Sector/Industry. Banks do well no matter what. Or so it seems!!! I made a mistake with KenolKobil. Well managed, etc but the price controls have decimated industry profits. You will see disinvestment as petrol stations shut down to give way to offices & commercial space. Suppose GoK imposes caps on banks then look at it again.
6) Dividend Yield (& Dividend Cover). BAT, EABL (until the recent expansion that is funded by debt), etc are great payers. Of course, some firms pay low dividends but grow faster. Think Berkshire Hathaway.
7) High Interest Rates. Scary. Folks sell to buy Bonds which lowers the prices. Also firms with debt suffer e.g. Unga, KK, etc. So perhaps a time to sell? Or buy banks whose interest margins jump. Very high rates will cause defaults thus hurting banks.
If I do not trust Management, the rest is irrelevant e.g. Neveready (merali), Sameer/Firestone (merali), Government Controlled firms unless very cheap (Kenya Re), etc
Greedy when others are fearful. Very fearful when others are greedy - to paraphrase Warren Buffett