If you want to invest in Didi, which hasn't had an IPO yet, you can invest in Apple and Alibaba, which have invested a lot of money in Didi. Given that Apple i

If you want to invest in Didi, which hasn't had an IPO yet, you can invest in Apple and Alibaba, which have invested a lot of money in Didi. Given that Apple is the largest holding in most S&P 500 and total stock market index funds, anyone who has invested in those funds will benefit somewhat from the success of Didi. Jack Bogle, the founder of Vanguard, goes so far as to argue that a broad US-market index fund is all you need for international exposure, because many US companies will benefit from the success of the international companies they have invested in and do business with. I don't quite buy that argument, but it's something to keep in mind when you construct a portfolio: index funds that appear to be distinct often overlap.