Not advocating or selling anything, just opening a debate.
TL;DR: behavioral issues to maintain predefined allocation when managing a substantial capital.
A robo-advisor is often seen as a(n expensive) beginner investor tool, for auto-allocation after profiling, then “hands-off” investment limited to a recurring bank transfer.
While the mustachian way of investing is a single world cap-weighted stock low-cost ETF as only instrument, or let’s say sometimes two, for different reasons we are discussing about other products within the community:
- Limiting US weight => ex-us, multiple ETFs
- Tax optimization => real estate funds
- Diversification / beta => managed futures, options ETF
- Store of value / speculation => Gold, crypto
- Income generation => dividends ETF/stocks, options ETF
- Chickening out with equity stash getting bigger, age, fire prep, SRR => review allocation, bonds, withdrawal planning
- Risk tolerance (volatility) may not be as high as expected
- Boredom of word etf investing

- May I add: US fear, IBKR fear, transfer and secure assets in good old high fees Switzerland, brokers diversification, ETF issuers diversification, currency risk, etc.
These topics are discussed here recently. It makes a case for every active (advanced) investor here arguing there is no such thing as a passive investor (there isn’t). Having ETFs for quite everything opens doors to unqualified investors among us to “diversify” into a “strategy”.
Shifting from the simplest investment strategy to a more “complex” one comes with some caveats and management.
Rebalancing means selling, and this is the first new thing a mustachian “beginner” investor is not used to. You added gold, war’s on, sadly, and gold went to the moon, stocks are crashing. Your 90/10 alloc is now 70/30. It worked, portfolio is -5% in the middle of an economic chaos. Let’s say you are still in peaceful Switzerland and have no issue shopping your groceries at Migros or Coop, so you can focus on your portfolio. It’s time to sell the performing asset (gold) and buy something that’s crashing (stocks). A long time ago you were happy VT crashed so you could buy it cheap, and you knew your 100K-portfolio would go to the moon afterwards, “because it always has”. But nowadays your portfolio is worth 2M+ and rebalancing means doing hundreds-k transactions, incurring thousands chf fees (because you felt safer at a Swiss broker when it had become big), and you are asked to invest in an end-of-the-world crashing economy.
Is the mustachian “passive” investor who only knew “accumulating on a world stock ETF”, but for some very well thought reasons shifted from this strategy, ready for that ?
This is where a robo-advisor with all the automation may help you stick to the rules you defined. If these rules are “world etf, end of story” it has no utility. Diversification and beta are useful if rebalancing occurs. And it comes with a premium that could justify or even cancel the cost of a robo. And keep the “passive way” of doing things.
I think it would help even more during withdrawal phase, among other small advantages (tax reporting, small amount investing, etc.)
What do you think ?
I took an extreme example and do not wish for war, nor do I think most of us would care about our portfolio and how to rebalance if ww3 occurs. In my case the best I could do during covid was: nothing, just ignore, focus on day to day crisis, hope for the better, but not optimistic-enough to double down. Better than panic selling, worse than automation and sticking to the rules.