Apple briefly hit 400 during after hours trading following the blowout earning release last week, but then fell into the 380s for the open the following day. Since then, it has been on a swift rise back up to 400 where it briefly hit at 12:54 ET today. It has fallen slightly since.
Apple’s market cap is nearing $370B, second only to Exxon who is currently near $410B. (thanks York!)