"iShares USD TIPS UCITS ETF USD (Acc)" is an exchange-traded investment fund (ETF). It refers to the Bloomberg Barclays US Government Inflation-Linked Bond Index. This index reflects the development of US American inflation-protected government bonds . The ETF replicates its index using physical replication with sampling, so it contains the most important securities of its reference index. The ETF's earnings (interest payments) are automatically reinvested (accumulated). The fund company iShares claims a total expense ratio (TER) of 0.10% per year. The yearly average divergence from the index performance (Tracking Difference) since 2008 was 0.18% per year. Therefore, the ETF was more expensive than the TER suggests.