THERE comes a time when every financial innovation is taken a bit too far—when, in television terms, it “jumps the shark” and sacrifices plausibility in search of popularity. That may have happened in the exchange-traded fund (ETF) industry. The latest ETF to be launched is a fund that invests in the shares of ETF providers.
The notion has a certain logic. The ETF industry has been growing fast, thanks to its ability to offer investors a diversified portfolio at low cost. The assets under management in these funds passed $3trn last year, up from $715bn in 2008. Some investors might well want to take advantage of that rapid expansion.
But by no stretch of the imagination would this be a well-diversified portfolio; it would be a focused bet on the financial sector. And many of the companies in the portfolio, such as BlackRock, a huge fund manager, and NASDAQ, a stock exchange, are involved in a lot more than just ETFs. Even if the ETF industry keeps growing, the bet could still go wrong.