There are a lot of rules in regards to auto-enroll and qualified investments. If you are auto-enrolled, you are going to be in a mix of bonds and stocks appropr

There are a lot of rules in regards to auto-enroll and qualified investments. If you are auto-enrolled, you are going to be in a mix of bonds and stocks appropriate to your age (conservatively), or just a balanced fund. So not really designed to prop the stock market.