The best business returns are usually achieved by companies that are doing something quite similar today to what they were doing five or ten years ago.
For some reason, people take their cues from price action rather than from values. What doesn't work is when you start doing things that you don't understand or because they worked last week for somebody else. The dumbest reason in the world to buy a stock is because it's going up.
If you know how to value businesses, it's crazy to own 50 stocks or 40 stocks or 30 stocks, probably because there aren't that many wonderful businesses understandable to a single human being in all likelihood. To forego buying more of some super-wonderful business and instead put your money into #30 or #35 on your list of attractiveness just strikes Charlie and me as madness.
Anything can happen anytime in markets. And no advisor, economist, or TV commentator-and definitely not Charlie nor I-can tell you when chaos will occur. Market forecasters will fill your ear but will never fill your wallet.