I’m always noticing trends in the stocks recommended in the Dick Davis Digests. When markets are choppy, advisors recommend a lot of conservative stocks and value stocks that look like good bargains. Sectors like health care and technology and retail have phases as well, driven by news, economic reports and sentiment. And natural resources and gold have seen some of the biggest popularity booms recently, with interest spiking every time the international financial system takes a hit. Every once in a while though, I find a cluster of stocks so closely related that it surprises me. Last week’s Dick...