AdamA wrote:That's why I don't understand the comment Larry made about the PP not "diversifying across other sources of risk, not just beta."
Ok I just went back and read that.
Well that's fine, but consider:
1) The portfolio uses simple and proven asset classes to minimize surprises and costs.
2) It accounted for previously unthinkable risks that many thought would never happen in the US (deflation) using a variety of assets picked specifically to do either well or poorly under these economic transitions.
3) It accounted for credit risk by concentrating fixed income in Treasuries for cash/bonds as they offer the best risk/reward thereby avoiding disaster in 2008.
4) It wrapped more of the strategy up in fail-safe procedures that went so far as to advocate geographically diversifying your money just in case, I don't know, some nuts in planes decide to try to take out the major financial center of the US (2001) or maybe a natural disaster like an earthquake threatens (2011).
4.5) Also advocated institutional diversification to protect against fraud by your broker or money manager (MF Global, Bernie Madoff) or other collapse (Lehman, The Reserve Money Market Fund, etc.).
5) All the while providing a CAGR of 9.5% with rolling 5-10 year returns in the real +3-5% range over the past 40 years.
6) While never experiencing more than a -5% drop any one of those years (-12.9% in real terms in 1981 though which other portfolios likely didn't escape either).
7) Providing a volatility that is maybe 1/3rd that of the stock market in general even during times of extreme market volatility.
That sounds pretty diversified to me.