Nikkei 225etf(5 13880), Nikkei 225etf(5 13/000), Nikkei etf( 159866), Nikkei etf(5 13520). Generally speaking, a fund is an asset management model that pools all people's money and is managed by professionals. Simply put, it is the accumulation of funds and professional financial management. Among them, Nikkei index etfs include Nikkei 225etf(5 13880), Nikkei 225etf(5 13/000) and Nikkei ETF (1599). A fund in a broad sense refers to a certain amount of funds set up for a certain purpose. It mainly includes trust and investment funds, provident funds, insurance funds, retirement funds and funds of various foundations.