A record number of new US exchange-traded funds failed to attract substantial investor demand last year, leaving fund operators facing losses in one of the first signs that the industry’s explosive growth may have peaked, the FT reports. ETFs allow investors to trade baskets of securities, such as the S&P 500 or precious metals, on exchanges with low management fees. Their popularity has surged in recent years, drawing investors away from mutual funds. The US ETF industry ended last year with more than $1tn in assets under management, compared with $540bn at the start of 2009. But that rapid growth has attracted scrutiny from regulators, and there are signs the market may be saturated. “There are a huge and growing number of ETFs out there that are truly sub-scale [uneconomic]” said Ogden Hammond, who tracks the industry for McKinsey, the consultancy. “Larger fund managers have more ability to absorb losses, but at some point operators will have to make a decision about pulling the plug.” Read more