TokyoWart wrote: ↑Fri Jan 10, 2025 6:19 am
I cannot imagine JGB playing a major role in an individual investor's portfolio. The inflation-linked JGBs would at least not have the negative real yield that most JGBs have but even that is not something I would consider for 25% of my portfolio at the start of retirement.
Regarding the equal 25% allocations for Japanese and foreign stocks I would keep in mind that currently Japan makes up about 5.36% of MSCI World while the US is now up to nearly 74%. When a US investor has 100% of their equity position in US stocks they are distorting the actual allocation by about a third (i.e. they have around a third more of their portfolio in the US than they should if they were taking a market-neutral approach). A Japanese investor who has 50% of their equity position in Japanese stocks instead of the 5.35% is making a much larger, 9-fold, over-allocation to Japan. That might be a reasonable approach because everyone needs some home bias, Japanese stocks are much less expensive than US stocks as measured by P/E, P/B or dividend yields, etc, but I think it is worth keeping in mind that the degree of distortion is much greater for that domestic Japanese investor who has half their equity position in Japan than for a US investor who has ignored the rest of the world entirely.
https://www.msci.com/documents/10199/17 ... fc565ededb
Well, up until I started re-allocating my portfolio, I had a sort of a slightly customized version of a market cap weighted balanced fund type portfolio. A clone of the allocation that Saison Vanguard Global Balance Fund uses, but built using the Vanguard ETFs so I had basically the same thing at lower cost. This has worked very well for me since around 2011, especially since the USD was strengthening against the yen all the time, thus turbo charging my gains.
The reason I am now moving away from market cap weighting, and making a big swing towards home country currency bias is largely due to having learned that asset classes such as US Equities and US Treasuries which exhibit negative correlation in the US, don't retain that characteristic when currency exchange rate risk enter into the picture (see the following tables, taken from this explainer article '
分散投資実践編⑥ ~日本の投資家のためのアセット・アロケーション~' on the Pictet Japan website).
As for US Treasuries and other international bonds, I found that they have a much higher volatility than I had expected (see this Risk table from the
GPIF's site) so although I will have them for the higher returns, I will be very aware that they have high volatility due to currency rate fluctuations, and also are more correlated with equities than you might expect:
According to the GPIF site, apparently they count yen hedged international assets as Japanese bonds and Japanese equities, so I guess I might also follow their lead in that. At the same time, I think that the reason for having a good sized Japan bonds and Japan equities in the mix is for the negative correlation between those asset classes, when denominated in yen.
My retirement portfolio asset allocation is still a work in progress, and I don't know whether I'll go as far as 25% of the total into JGBi (and yen hedged developed market bonds), but I do want to have a good chunk of my assets in yen.