This was an excellent read.
Goldman is out with a new returns report, looking at various timelines (1950-1990-2010-2020) until today and trying to construct a PERFECT WORLD PORTFOLIO.
One idea that's been around the finance block a lot is that "Global Index" or broad portfolios available in no way approximate the academic finance idea of "the market." (think CAPM, Sharpe, risk-free rates etc).
- can't own people's homes (though BlackRock is trying)
- can't own private businesses (though private equity funds are trying)
- can't own/capture the other hundreds of trillions of unlisted assets out there
Still, they did their best, working with what they've got, weighing this wider/broader portfolio (yearly rebalancing, I presume?) with their total market cap:
Nice, real return. Looks something like this:
Results?
"A simple 60/40 portfolio delivered better total returns and risk adjusted returns over all periods. So much for efficient capital markets."
"best asset allocation will depend on the structural macro regime"
Some specific regime characteristics:
strong GDP growth coupled with low and stable inflation was great for the 60/40 portfolio. US asset dominance has been a tailwind in a world of king dollar, tech exceptionalism, falling interest costs, and declining corporate tax rates that boosted margins. And **buying crypto in 2014 **would’ve been a very effective get-rich-quick scheme.
Gold is a drag on performance in every time period... except the 2020-2025 (duh! #1257876):
Because of it, the GS authors say
- "gold wasn't a good investment in most of our time periods"
- "buy gold going forward."
The entire exercise is a little backward-looking (buying good stuff is better than buying bad... but we only know which is which in hindsight), but still.
Very interesting, very nice read.
Archive: https://archive.fo/4Gcbj