is the major indeces are down 10% for the month and this december will be the worst for stocks since 1931. you mentioned if it's save to check your portfolio. only if you have a strong stomach. the dow is down 6% and s&p down 7% and the nasdaq down 5%. it has been a down year. >> very, very important advice. thanks for that and everything this week. what do the wild swings mean for next year in 2019? chief business correspondent christine romans has a look. >> no matter what happens today and monday, the stock perspective with the worst returns in a decade. they are accustomed to making jumps in 2008 and subsequent recovery. they returned 22% diffidevidens