"iShares S&P 500 Energy Sector UCITS ETF USD (Acc)" is an exchange-traded investment fund (ETF). It refers to the S&P 500 Capped 35/20 Energy Index. This index reflects the development of US American stocks . The ETF replicates its index using full physical replication, so it contains all the securities of its reference index. The ETF's earnings (dividends) are automatically reinvested (accumulated). The fund company iShares claims a total expense ratio (TER) of 0.15% per year. The yearly average divergence from the index performance (Tracking Difference) since 2016 was -0.47% per year. Therefore, the ETF was significantly less expensive than the TER suggests and even exceeded the index performance.