@wabac,
You raised good points. A portfolio can have several goals. Performance is always important. But, I also think that risk-adjusted performance is more important, at least for me, and that can be measured by the Sharpe ratio.
The following are several simple measurements I set for myself
1) My stock portion must beat the easiest most common index VOO/VTI. If I don't beat it, my stock portion must have a better risk-adjusted performance.
2) My bond portion should beat good bond funds, starting with BND and DODIX.
3) If I have
50/
50, must beat W+W (Wellington, Wellesley)
4) For a conservative portfolio, must beat Wellesley.
The above is just a start, a minimum. I also know about great funds over the years, such as PRWCX and PIMIX.
I'm very critical of my own portfolio. It's all data-driven. No excuses are allowed. It doesn't matter if you use 3 or 10-1
5 funds, or how you do it.
Suppose I want to set up an easy buy and hold portfolio for a retiree, see below 2 real-life examples.
1) In order to make my wife's investment decisions easier, I set up a written plan for her to invest in only 3 funds. I only trust 2 choices indexes + Vanguard funds managed by Wellington. Wellington Management is the oldest, it's conservative, team style, and not one dominant manager, with a very cheap expense ratio. Since our money isn't with Vanguard, we would have to own the more expensive funds(not Admiral), but it's still cheap.
For a younger age, until age 70-7
5 and still having a taxable account...4
5% VWINX...2
5% VWAHX(HY Muni)...30% VSMGX. Because of HY Muni bonds which are hybrid, this portfolio is more like 40/60
Older than 70-7
5 or taxable account is gone: 40% VWINX(40/60)...30% VWEHX(HY Corp)...30% VSMGX(60/40). Because of HY Corp bonds which are hybrid, this portfolio is more like 4
5/
55.
2) An older relative retired around 2002 and told me he saw several financial advisors and they want to charge him 1% and he really doesn't trust any of them. Markets are volatile and he wants a stable LT simple portfolio and all his money is at Vanguard. Based on the amount of money he had, he needed about 3.
5% yearly withdrawal and wants a conservative portfolio. I told him he can be in just 3
5-40% stocks and the rest bond and to invest in just 2 funds VWIAX+VCCGX. If he needs more money, just sell shares from both funds at equal amount of money. Just keep several thousands in the bank, use your SS and distributions from these 2 funds and if you require more just sell shares from both at 70/30 (VWIAX+VCCGX).
In the first 10-1
5 years, this guy called me every 2-3 years and thanked me how I saved him so much money and how it works well.
Below are the results(
link)including 3.
5% annual withdrawal, and they show that KISS investing and spending worked very well. This portfolio was able to support the 3.
5% and grow at 6% (including the 3.
5% withdrawal).