3M (NYSE:MMM) has been one of the best performers on the Dow Jones Industrial Average in 2013. Even after a recent pullback, the stock is up a massive 40% year to date. Since its valuation has rocketed from just 13 times trailing earnings to almost 20 times, is it time to start thinking about selling this blue chip?

MMM PE Ratio (TTM) Chart

MMM P/E Ratio (TTM) data by YCharts.

In the video below, Fool contributor Demitrios Kalogeropoulos argues that 3M still looks like a great investment. Yes, investors shouldn't expect a repeat of this year's stock performance in 2014. However, 3M's fundamentals look strong, and shareholders would probably regret selling the stock at this point, he says.

Fool contributor Demitrios Kalogeropoulos has no position in any stocks mentioned. The Motley Fool recommends 3M. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.