With the crescendo of all US Treasury yields to trading below 1% in early March marking the high-water mark for bond prices, the need to revisit how portfolios are constructed has emerged. Is the traditional 60% stocks/40% bond model dead?
This may indeed be a worthwhile question to explore but it is the underlying assumption or the underlying narrative of a stock/bond mix that warrants examination. For decades scholars of portfolio management theory ran studies after studies showing how a mix of assets, even as simple as stocks and bonds, can lower the risk and improve returns of non-diversified portfolios.
With the advent of computers in investing and something as relatively simple as a pie chart, investors could “see” how they were invested. When stocks swooned in 2000 and 2007, yes, diversification worked as advertised…just look at the results!
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