While high-risk investments may be appropriate in your portfolio, here are six signs indicating that you may want to consider reining them back a bit. However, if your account value fluctuates dramatically, it could be because you're heavily invested in high-risk assets. After all, when the value of a high-risk asset increases, it can be exhilarating. If you're hot on investing because you don't want to depend solely on Social Security in retirement, that's wise. However, if you worry about losing everything, make sure it's not because you're invested too aggressively.