iShares Lehman TIPS Bond Fund began trading on the New York Stock Exchange on Friday, according to Barclays Global Investors.

The firm said the fund is the only exchange-traded fund that tracks "information-protected public obligations of the U.S. Treasury," which are also known as TIPS. They are income-generating instruments that are designed to protect investors from inflation. The fund has an expense ratio of 0.20% and will be managed by Barclays Global Fund Advisors, a subsidiary of Barclays Global Investors.

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