The Invesco NASDAQ Biotech UCITS ETF Acc aims to provide the performance of the NASDAQ Biotechnology Index, after fees. The index comprises biotechnology and pharmaceuticals companies (as defined by ICB) listed on the NASDAQ Stock Market. Stocks are filtered to meet minimum market capitalisation and liquidity requirements. They are then weighted by modified market capitalisation: the largest five constituents are capped at 8%; the remaining constituents are capped at 4%. The index is rebalanced quarterly and reviewed annually in December.