I think you have to think about it from this angle:
If not a stock/bond portfolio, what else are you going to 'store' this money? Remember that you are thinking of 'investing' because now you have no need to use these funds.
Remembering what is out there:
Put under bed : no interest earned, notes may be eaten by rats
Put in deposit account in bank : v v low interest, but very safe, no drop in value
Fixed deposit : slightly higher interest but only if you totally can't use it in the meantime
Gold :hard to buy/sell, probably no growth
Property: ???
Buy collector's items like art,wine : ???
So yeah a stock/bond portfolio is probably the best choice.
Just to add on to your reply for soulblader_89.
I agree with your logic and your examples except property. (Also, with all these DBS multiplier, OCBC 360, UOB One, parking a few dozen Ks in the bank is not too bad an idea also, for the extremely risk-averse and ignorant. It's a half-decent way to counteract inflation without much hassle and worry.)
In order to fully know what investment options are out there, we can look at the concept of Assert Classes. From what I know, they are broadly defined as 5 types:
- Bond
- Stocks
- Real Estate
- Commodities
- Currency
I view that the first 2 has the ability to generate interest/profit because it grows in its intrinsic value over time. Whereas the last 3 only generates profit because of the fluctuating demand and supply. Their intrinsic value remains the same over time.
Bond
If you were to lend your money to the government or big corporations, they most likely will take this money to put into doing actual stuff. Like govt will build roads, reclaim land,
pay NSFs. Google might invest in autonomous vehicle research. All legit stuff creating actual value that the world needs. Then they pay you back your money with interest.
Your interest didn't directly come from the added value that they have created from road-building and R&D, but at least they're doing legitimate stuff. Which means that in the long run, they don't randomly go bankrupt. Which means that at any one period of time that you bond your money with them, you're safe in that sense.
But of course, if you're talking about the CDO nonsense that caused the 2008 sub-prime, then well, that's just an outright organised fraud. I'm impatiently waiting for the next one to come so that I get to buy all my ETFs on discount
Stocks
When you buy a company's share, you own a proportion of that company. Every company seeks to maximize revenue and profit, but very few has that idea written in their Mission and Vision statement. Which means that their existence and goal, ideally, is to achieve what they set out to do, and create value in this world (not profit maximization per se). The more value that they create and own, the more valuable they are, the more valuable your shares are. You own a portion of the company that is intrinsically more valuable now. They could be more valuable in their patents, technical know-how or machinery assets.
In other words, all their staffs, CEOs and machines are running like siao for themselves to grow. But you get to reap part of that growth, without doing anything.
Of course, when you invest in companies that doesn't actually do that, all your money are gone. Coz you own a portion of a company that doesn't create value, which eventually doesn't have a value in themselves.
Real Estate
It is similar to commodity, since you own something physical. Its intrinsic value stays the same.
But this physical thing is about the land and space that is rightfully yours, rather than the furniture and whatnot. Most often, this space and land don't degrade or disappear over time. Which means that you get to lend this out indefinitely. (for the sake of the argument, ignore lease

)
Moreover, the world population doesn't seem to be going down anytime soon, except Japan. Yet the supply for living spaces is heavily affected by technology, political/social reasons. Meaning that it is ultimately, finite. This means that demand seems to be endlessly going up but supply may or may not be able to keep up. In the long run, it's price (not its value though) will go up.
Commodity
Owning something physical/unique.
Its intrinsic value doesn't change. The gold bar that you own won't work hard for you to give birth to cute little mini gold bars. It will forever just be that. It is the demand and supply that affect its price. And you'd have no ***** clue when either of that will change. Suddenly there's a new mining technology to mine deeper, increasing supply. Then another research breakthrough in computer hardware demands for gold as its material.
The worst part is that, unlike real estate, you probably can't find people who'd want to borrow your gold bar.
Other things like art collection etc. are highly subjected to people's perceived value of it as well. The supply remains the same but the growth in demand is questionable. Again, its intrinsic value won't change. A good painting is a good painting. It won't give birth to another good painting after 20 years.
Currency
Honestly no idea wtf this is

. It's like commodity but it represents the value of every other commodity. It works as long as everybody agree that it works. Once the economy goes out of whack like hyper-inflation or deflation, it's another worthless piece of paper. Its intrinsic value is.....none? But it has an innate function which is to serve as the common medium, to represent the perceived value of everything (without having people to physically trade 20 tables for an iPhone X).
In fact, its perceived value goes down steadily every year, thanks to economics 101. So for whichever idiot who hides millions and millions of cash under their pillow or in the bank, is subjected to losing at least 2% of its value every year. Which is exactly why I don't see any point for people to keep any more cash past their
pre-decided emergency fund amount. Usually they have never decided on that amount in the first place, just assuming more is always better. While not knowing that the more they save, the more opportunity cost they incur for not shifting into a more legit asset class. Even a lame Singapore savings bond at 1.5% + 2.5% inflation rate will incur a cost of 4% to him.
Sidetrack a bit: The way I see it, cryptocurrencies are commodities being marketed as currencies. They don't serve the function of currency at all since you have no idea how much one whatever-coin will be worth - the time it takes for your parcel to arrive changes how much it costs. But they are something "physical" in the sense that they are finite, and each blockchain is unique.
ETFs
So back to the topic, bonds and stocks are the only two asset classes that leads to more value in this world, over time. So in the long run (imo, >20years), they are the most legit.
But you're still prone to company bankruptcy and bond defaults. Which is where ETFs come in. It helps to diversify the risk of your money from being placed on one single company to a few thousand companies. There is no way a few thousand companies all go down together. When that happens, you have a world war/meteorite/alien invasion/AI domination to worry about, not your money.
And according to Modern portfolio theory, you should decide on an asset allocation of these 2 types and re-balance at a fixed interval. The math shows that if you do it "blindly", meaning buying and re-balancing at a fixed interval regardless what happens, you'll eventually get the best average return for that period.
Real estate is a separate league of its own. If you own actual houses, you don't get to re-balance its value so easily. You can't sell half of your toilet coz the rising property price has brought your asset allocation for real estate too high. Neither can you buy a few more centimeter square of area every month so that you can Dollar cost average
But as mentioned above, you get to pretty much always rent out your space and its perceived value will most likely go up. This is especially the case for Singapore, with VERY finite land compared to other places like Russia.
So this leads to the conclusion that "ETFs in real estate", also known as REIT (real estate investment trust) should be considered as part of your asset allocation.
Only problem is that most of us have our parents' house loan or BTO to worry, to the point that the real estate portion can be excluded from our "portfolio". In the sense that your investment in one single real estate with
borrowed money (aka leverage), is already dam huge! Still include in your portfolio for what sia.
Anw, just sharing my opinion and current understanding on finances. Feel free to correct me =)