It’s the start of the new year and that means it’s time to take a look at your portfolio and rebalance if necessary.

Rebalancing at least annually will ensure you have the right asset allocation that is appropriate for your financial situation.

A general rule of thumb is to take 110 - your age and that will give you the percentage of stock allocation. The remainder should be bonds. If you want to be more aggressive, you can take 120 - your age. 

This is very general blanket approach and by no means is this specifically tailored for everyone however this is a good starting point