The market hit another all-time high today, opening at 16,000. With the Dow up more than 20% so far this year, fears are mounting that this bull market doesn't have much farther to run. In the lead story from Investor Beat, Motley Fool analysts Jason Moser and David Hanson discuss what investors need to do as the Dow climbs higher.

Alison Southwick has no position in any stocks mentioned. David Hanson owns shares of Markel. Jason Moser owns shares of Starbucks. The Motley Fool recommends and owns shares of Markel and Starbucks. 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.