Disney’s stock value got an unexpected boost of $2 billion yesterday after the trailer for Star Wars: The Force Awakens was released.

Shares rose by 1% to $108.30 after the trailer was posted at 10am PST from around $107 before. They settled around a few cents above $107 in after hours trade.

The share jump is an indication of excitement among investors over Star Wars, which is a relatively new acquisition for Disney. Disney bought the rights to the franchise as part of its $4 billion purchase of Lucasfilm Ltd in 2012. That now looks like a savvy move on the part of CEO Bob Iger.

The trailer was launched at the Anaheim Convention Centre in California by JJ Abrams, the director of the film, with help from special guests.

Star Wars: The Force Awakens opens in cinemas on 18 December, 2015.