"What Is Rolling Admissions?
Colleges and universities with a rolling admissions policy evaluate applications as they receive them. They release admissions decisions regularly — sometimes daily — as opposed to sending all out on one specific day.
If you apply earlier, you’ll receive your decision earlier,” says Kellie Kane, associate vice provost for enrollment and executive director of admissions at the University of Pittsburgh.
That means these schools will continue accepting applications until all spots in an incoming class are filled." …
https://wtop.com/news/2020/06/rolling-admissions-10-frequently-asked-questions/