"Amundi Global Hydrogen ESG Screened UCITS ETF" is an exchange-traded investment fund (ETF). It refers to the Bloomberg Hydrogen ESG Index. This index reflects the development of securities . The ETF replicates its index using full physical replication, so it contains all the securities of its reference index. The ETF's earnings are automatically reinvested (accumulated). The fund company Amundi claims a total expense ratio (TER) of 0.45% per year. The yearly average divergence from the index performance (Tracking Difference) since 2011 was -0.08% per year. Therefore, the ETF was significantly less expensive than the TER suggests and even exceeded the index performance.