The Investment Company Institute reported today that assets in exchange-traded funds, or ETFs, declined by 10% in September, to $82.3 billion from $91.3 billion in August.

Assets in the funds, which trade shares on stock exchanges at market values, declined by more than $9 billion. Assets in equity ETFs fell by $9.4 billion to $78.3 billion and assets in bond index ETFs increased by $321 million to $3.9 billion.

The declines returned ETF assets to less than their levels of December 2001, when ETFs held about $83 billion.

The ICI reported that 68 ETFs tracked domestic stock indexes in September and held assets of more than $74 billion. Thirty-four ETFs, meanwhile, tracked international equity indexes and held assets of $4.31 billion.

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