These scans limit their results to recently listed stocks (within the last 6 months or so). Another way to view recent IPOs is on the recent IPOs page.

So you'll essentially see the same stocks on the Recent IPOs page and the "IPOs & New Listings" scan, but there are some difference. The scan will let you filter out stocks based on price, volume, etc. The scan is also available to use in a combo scan. The Recent IPOs page will let you sort the stocks by how close they are to a new high or how many days they've been trading.