As you make your investing plans for 2021 and beyond, bolstering the value side of your portfolio is worth considering. Value stocks appear to be one of the few underpriced areas of the U.S. equity market, as Morningstar's Dave Sekera and Amy Arnott have recently noted in separate articles. The extreme value-growth spread has been a noted feature of the market for a number of years, for reasons not fully understood, but believers in mean-reversion would expect that pattern to shift at some point, perhaps in an extreme fashion. GMO's Ben Inker, for instance, argued in a recent letter to investors that "no matter where you look, no matter how you slice it, value looks cheap," while DFA's Gerard O'Reilly made a similar case for value on a recent episode of Morningstar's