Should I pay off my balance?

[Gustavo Delgado]

Quick poll: just Yes or No

I have a managed account with chase that has been growing with the stock market. I also have a mortgage balance on a rental at 4.5% I got back in 2015. The account has been growing and is about to match/surpass the balance on the mortgage. I am tempted to payoff the mortgage if this happens. Would you pull the trigger? ( I don't want to get too much into the weeds and possibilities of other options that may be available, so I kept this question very simple for feedback)