Cash Balance in Investment Account

If no one posts a better answer you could do what I did in a previous version. Create an account, maybe call it Rounding Errors, make it hidden if you want, transfer out the remaining balance to that account. It is for this reason that nowadays I take the trouble to force those rounding errors back to the price so the pennies in the totals match the statements.

As suggested by the other poster, it's possible there is some small rounding error involved. Or it's possible there is a small error in one or more of the old transactions in the account (if true, such problems can sometimes be "fixed" by deleting and re-entering old transactions ... especially Buy and Reinvest transactions ... but there is no guarantee).

You can also try the other poster's suggestion, in a more formal way: enter a cash adjustment in the account. In essence, you tell Quicken what the cash balance in the account was on a certain date, and Quicken tries to make that be true. Also no guarantee this will work.

With the account open to its "register": Investing > Investing Activities > Update Cash Balance.

You aren't allowed to do that if there is a linked cash account.

Can you lower the share price until the cash balance disappears? For example, if you sold at 19.58/sh, edit the transaction to a lower price, say 19.5775/sh, and see what happens to the cash balance. Adjust the price as necessary to eliminate the cash balance.