In this episode of Jess Learns to Invest, Jess sits down with Tom Hartmann, Personal Finance Lead at Sorted, to unpack one of the most important concepts in investing: portfolio diversification. Together, they break down what a portfolio actually is, why diversification matters, and how spreading your investments across different assets, industries and regions can help manage risk over time. They also explore how diversification works inside managed funds and KiwiSaver, the difference betwee...