The 60/40 portfolio dates back to 1952, when Harry Markowitz and William Sharpe created Modern Portfolio Theory.

Modern Portfolio Theory is a practical method of selecting investments to maximize returns within an acceptable level of risk which paved the way for the classic blend of 60% public stocks and 40% public bonds. While it has, undoubtedly, helped millions of investors diversify and grow their wealth, this allocation may not be as suitable in the today’s markets.

Why? Because the 60/40 portfolio excludes assets from the private markets that may help investors as they p...