According to Deadline:
Here’s another shameless plug for Twihard traffic. Summit Entertainment’s 24-hour-old debut of the new teaser trailer for the last of this annoyingly anticipated Twilight Saga films, Breaking Dawn Part 2 which releases November 16th, is already breaking records. It debuted exclusively on Yahoo and received 7 million views within the first day, the most ever for a trailer viewed on Yahoo. The previous record-holder was the Twilight Saga’s Breaking Dawn Part 1 with 5.8 million views within the first 24 hours of the movie’s first trailer debut.
Here's to breaking every record around with the last of the Twilight movies TwiFans!