This was something I hadn't come across before..
I just got the card in the mail 2 days ago, I activated it yesterday and today it showed up on my reports. I think I've had a card report that quickly (maybe Synchrony) but usually its after the first statement closes out.
The other thing was usually when a new account reports my score takes a small dip, but this one actually pushed my EQ 8 from 753 to 757 lol marginal increase, but it wasn't a decrease!