Do you have a 401k? If so, do you know what it is invested in? The standard investments inside of a 401k are stocks and bonds. Most likely you are invested in variation of stocks and bonds. Regardless of what you are invested in you should know what those investments are because you may come to find out that you are invested in some more risky options that you otherwise might not want to be invested in. One thing you may come to find out or may already know is that you are invested in your own companies stock.
Only 12% of plans make matching contributions using company shares which is down 45% from 2001. Even though this number is down there are still many plans that let workers invest in employer share as an option. Those that have the option for company stock it typically represents around 14% of employees' portfolios.