Interesante comentario sobre la inversión “pasiva”
You can’t understand an index fund unless you understand the underlying index. The ETF itself will just say that it replicates the index, which sounds passive. As an investor, you just buy the ETF, which sounds passive.
The activity comes from the index, and believe me, many of them are not all that passive. But you have to look at the index’s rules to identify what is going on.
The ETF fact sheet usually won’t tell you squat. But they will identify the index. Put that exact name into Google, and voila, you will find the index’s documentation.
It can be eye-opening, and I suggest that every ETF investor do that at least once. Find out how they select stocks; how often they rebalance; how it’s weighted; what can get a stock kicked out of the index; what the rules are for replacing a stock that gets kicked out; how often the index committee meets (there is always a committee); and so on.
You may come away with a different view of “passive investing.”