Most investors prefer using ETFs that are bought and sold frequently. Although thinly traded ETFs are not always less liquid, experienced investors will tell you that they do tend to have wider bid-ask spreads. A healthy trading volume also suggests there’s a lot of interest in the ETF, which makes it less likely to be shut down.
You can get an idea of an ETF’s trading volume by looking at a quote from your discount brokerage or from free online services such as Google Finance. But you’re probably not getting the whole story: you may be surprised to learn that your ETFs are trading more often than you’ve been led to believe.
Here’s why: when you get a quote from these sources, chances are the data is coming only from the Toronto Stock Exchange. But although the TSX gets all the attention, it’s not the only ETF marketplace in Canada: there are several so-called alternative trading systems (ATS) that match buyers and sellers behind the scenes. These include Alpha, Chi-X, Omega, and many others—even some that aren’t named for a letter in the Greek alphabet.