Exchange-traded funds hit a speed bump last month after coasting through much of the year in the black. Assets of all exchange-traded funds fell in October by $12.22 billion, or 1%, to $1.269 trillion, according to data from the Investment Company Institute.

Over the past 12 months, ETF assets increased $213.96 billion, or 20.3%. Assets in domestic equity ETFs increased $118.60 billion since October 2011, and global equity ETFs assets rose $30.73 billion during this period.

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