QUOTE(Hoshiyuu @ Apr 24 2022, 03:41 PM)
15% of my portfolio is small cap value-tilt (about twice the size of normal small cap allocation) implemented via factor filtered small cap ETFs provided by Avantis in a 60% US 40% ex-US ratio. (AVUV 9%, AVDV 6%)
Personally I don't believe it's a move a true purist Boglehead's would do, so I wouldn't recommend that actively to anyone here. But my reasoning for this allocation is that:
1. VWRA do not contain any small caps.
2. Large-medium caps and small-caps rotates in performance much like International and US performance rotates.
3. Unfiltered small caps Unfiltered small caps often have too much bad stocks dragging it's performance down.[/url]
So I'm only taking slightly more compensated risk to complement my portfolio and every so slightly increased the long term (~20y) expected rewards (~0.5% or so).
However my strong recommendation is still to avoid complexity as much as possible[/url], and go with a life-long 2-fund portfolio of VWRA+(VAGU/AGGU).
My portfolio is the exact opposite of yours.
Not only is my portfolio heavily skewed toward size, value, and momentum, but I'm also underweight US stock and overweight ex-US stocks. Yes, I sin a lot
I only hold 15% of VWRA, 33% small value ETF (AVUV 10%, AVDV 10%, AVES 13%), 22% momentum ETF (11% QMOM, 11% IMOM), the remaining 30% are bonds.
This is definitely not a portfolio Boglehead recommends, but I think my decisions on these allocations is kinda reasonable. FFirst, there's plenty of evidence that the US is by far the most expensive stock market, and ex-US are dirt cheap. Given the current valuation of the US market, I think it makes more sense to overweight ex-US market rather than ‘blindly’’ following the market-cap weights.
Besides, many studies have found out that size, value and momentum are able to increase return over the long run (20-30 years). I do acknowledge that the factor investing might leads to decades of underperforming market returns (such as the poor performance of value stocks in the past decade), but for someone with an investment horizon of over 30 years, this shouldn't be a big deal.