I got a new Macy's card recently and it just started showing on my CR. My TU score dropped 6 points. How long does it take to bounce back up?
It should recover after the next cycle. 6 points is for the new tradeline being opened. Don't even sweat it.
IME the recovery time has been 3-6 months.
Within 6 months it will have made up for that drop, and be adding more points to it.