With recent volatility in the Dow and other major market averages, investors have started to see the stock market as increasingly dangerous. But another market has even greater risks for investors, many of whom are likely unaware of the potential for declines.

In the following video, Fool markets analyst Mike Klesta talks with Fool contributor Dan Caplinger about this vulnerable market and the impact it could have on investors. Dan notes that the collateral impact of a market decline could affect many different types of investments and makes some suggestions on how to position yourself to protect against a decline.

Neither Fool contributor Dan Caplinger nor Mike Klesta has any position in any stocks mentioned. You can follow Dan on Twitter: @DanCaplinger. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools don't 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.