"In contrast, the Permanent Portfolio defended its reputation, to be a good and simple investment concept as it has delivered the third highest Sharpe Ratio and the third highest overall score."
The article on pg 4 says that stocks IVV has a CAGR of 5% and 0n pg 6 the PP has the same CAGR over a long time period. For the last five years ,stocks
have averaged 18% and the PP 9%. This indicates to me that stocks will go down sometime in the future and gld,or tlt or cash will go up. I am staying with the PP because of the low volatility.