Trader Brian Jones on Twitter: "In 2009 I jumped my 401k into a small cap fund because it had fallen a lot. It kept falling and I lost 11% in one day. If you are not the kind of person who can afford to tolerate a short term loss like that. Then be careful." / Twitter

In 2009 I jumped my 401k into a small cap fund because it had fallen a lot. It kept falling and I lost 11% in one day. If you are not the kind of person who can afford to tolerate a short term loss like that. Then be careful.