I personally second @dbu , but if it still bothers you, simply “check this box” at IB described in this thread (incl pro’s and con’s)
For more details see
https://www.interactivebrokers.com/en/software/am/am/manageaccount/dividendreinvestment.htm
Thanks guys. To be clear it doesn’t really bother me but I was trying to wrap my head around it. Because everytime it’s explained like in this thread it’s never mentioned that actually you never really attain this goal since you cannot actually reinvest the dividends entirely.
I thought I was missing something
There shouldn’t be a problem if you keep investing each month. For example if you invest 1K/month, the month after the dividend you will be able to invest the 1K + the dividends