Is Portfolio Concentration Good or Bad?
In last week’s Performance Review note, we ended with an open question about whether concentration in a single sector or industry group is a good or bad idea. The question emerged as we learned that, although we beat our blended benchmark (+2.8% vs. +1.9%) last month, we might have done even better had we not owned three “shipping” stocks, which lost 10.7%, 10.9%, and 15.6% during the four-week holding period in focus.
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