Investment trusts are a type of collective investment.
They are structured as companies and exist purely to invest in a portfolio of shares and securities in other companies to make money for their own shareholders.
They pool investors’ money and employ a professional fund manager to invest in the shares of a wider range of companies than most people could practically invest in themselves.
This way, even people with small amounts of money can gain exposure to a diversified and professionally run portfolio of shares, spreading the risk of stock market investment.