iShares U.S. Treasury Bond ETF

ARCA

2012

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400 Howard Street,San Francisco,California,United States

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94105-2618

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The fund will invest at least 80% of its assets in the component securities of the underlying index and will invest at least 90% of its assets in U.S. Treasury securities that BFA believes will help the fund track the underlying index. The underlying index includes publicly-issued U.S. Treasury securities that have a remaining maturity greater than one year and less than or equal to thirty years and have $300 million or more of outstanding face value.