(Bloomberg) -- ETFs focused on China are posting the world’s biggest outflows amid concern economic growth is slowing.

Withdrawals from U.S.-based Chinese ETFs totaled $87.5 million March 10, the most among 46 nations, bringing this year’s redemption to $380.7 million, according to data compiled by Bloomberg. The iShares China Large-Cap ETF, the largest Chinese exchange-traded fund in the U.S., fell 1.6 percent to $33.90 yesterday. The Bloomberg China-US Equity Index of the most-traded stocks in the U.S. dropped 2 percent to 99.60, led by Vipshop Holdings Ltd.

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