SPDR Barclays Capital TIPS (NYSEArca: IPE ) Max Chen contributed to this article. The iShares Barclays TIPS Bond Fund (NYSEArca: TIP ) has become the seventh-largest ETF in the United States, with just more than $20 billion in assets, and the fund pulled in $4 billion during 2009 alone, observes Paul Amery for IndexUniverse . Investors of TIPS-related ETFs are betting on high inflation hitting our economy soon.