Closing an Ally CD

About three months I opened a CD to do something with my money instead of letting it sit in a saving account.(before I knew any better)

At this point is it better to close & take the penalty (not bad - just like $30 of interest) and invest that into my brokerage (other accounts already maxed) or just let it ride for until its maturity in September.

Other than the fee is there any issue when closing CD early?