(Bloomberg) -- To find a low-volatility stock in the U.S. market this year, throw a rock. And yet plenty of people are still paying for the privilege.

Flows into the biggest ETF tracking the companies have been positive for six of the last seven weeks and totaled $238 million last month, the most since July, according to data compiled by Bloomberg. Investors withdrew money in the five months through February after a yearlong buying bonanza that added almost $9 billion to the fund.

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