There are many opportunities on the market. No single investor...

There are many opportunities on the market. No single investor will invest in every great opportunity. I agree that in a portfolio of a limited number of stocks investors should have a high degree of confidence in every company that they buy and hold.

Be happy with the great companies and investments that you do buy and don't worry about what you missed.

I personally ignore whole sectors of the market and many companies that I don't think make good investments. That does not mean that you could not make money by investing in or trading these stocks.

If anyone has detailed knowledge of and high confidence in SBB then by all means invest in it. As for me there are too many questions and I think plenty of other better opportunities.