An Exchange traded fund is a security that tracks an index or commodity but is traded in the same way as a share on an exchange. ETFs allow investors the convenience of purchasing a broad basket of securities in a single transaction, essentially offering the convenience of a stock with the diversification offered by a pooled fund, such as a unit trust. Investors buying an ETF are basically investing in the performance of an underlying bundle of securities, usually those representing a particular index or sector. They have no front or back-end fees but, because they trade as shares, each ETF purchase will be charged a brokerage commission.
A collective investment vehicle (known in the US as a “mutual” or “pooled” fund) and similar to an Oeic and investment trust in that it manages financial securities on behalf of small investors who, by investing, pool their resources giving combined benefits of diversification and economies of scale. Investors buy “units” in the fund that have a proportional exposure to all the assets in the fund, and are bought and sold from the fund manager. The price of units is determined by the value of the assets in the fund and will rise or fall in line with the value of those assets. Like Oeics (but unlike investment trusts) unit trusts and are “open ended” funds, meaning that the size of each fund can vary according to supply and demand of the units form investors. Unit trusts have two prices; the higher “offer” price you pay to invest and the “bid” price, which is the lower price you receive when you sell. The difference between the two prices is commonly known as the bid/offer spread.