The Motif Investing and M1 Finance companies allow investors to create a customized portfolio of individual securities and ETFs. Paul and Chris Pedersen compare these two low cost ways to create do-it-yourself robo portfolios. In both cases there are great advantages and important limitations. Chris recently compared the important differences in a table that may be useful as you listen to their discussion of these innovative trading platforms, which covers fees, minimum investments, rebalancing limits, reinvesting dividends, tax management, portfolio construction, and how investors can build portfolios using the recommended portfolios on the Merriman website. For those who want to learn more, here are links to M1 and Motif.