On 14 July 2015, O'Leary launched an ETF through O'Shares Investments, a division of his investment fund, O'Leary Funds Management LP, where O'Leary serves as chairman. A value investor, he has given advice on personal finance. He advocates portfolio diversification and suggests that investors have their age as the percentage of bonds in their portfolios (i.e., 30% in bonds and 70% in stocks for a 30-year old investor, with an increasing proportion of bonds and decreasing proportion of stocks as the investor ages). O'Leary has also "stated on many occasions that he won’t invest in a publicly traded stock unless it pays him a dividend."