Cefs Latest Best Closed-End Funds (CEFs) to Buy Now The best closed-end funds will significantly boost your portfolio income and allow you to buy their underlying stocks and bonds at a discount. 10 Income Investments Serving Up Superior Yields Investing for Income Respectable yields are scarce nowadays. But these 10 income investments, spanning several types of special classes, offer up to 10.3% annually. By Will Ashworth Published 15 March 21 Investing for Income