If you have a large send, or you need to update your stats lists, use the refresh stats button! Click the refresh button and Email Marketing refreshes your stats to display the freshest data. You'll find the little circular arrow button, attached to the Stats button, underneath the campaign thumbnail, in your Dashboard.
Troubleshooting Tip: If for any reason you can't view contact details for a specific stat type, click the refresh stats button, then try again.
Can I view Lists From Stats?
Explain the Compare Stats View
How Do I View Stats For One Mailing Only?