It has been a rough year for Disney theme parks and they have taken a huge hit when it comes to their financial bottom line. Tens of thousands of cast members have been laid off as Disneyland, Disney Cruise Line, and Adventures by Disney have not been in operation since March.

Related: Learn how you can help support laid off Disney cast members!

Monday morning, Pfizer announced initial success with a COVID-19 vaccination trial via their Twitter account:

UPDATE: We are proud to announce, along with @BioNTech_Group, that our mRNA-based #vaccine candidate has, at an interim analysis, demonstrated initial evidence of efficacy against #COVID19 in participants without prior evidence of SARS-CoV-2 infection.

— Pfizer Inc. (@pfizer) November 9, 2020

With this morning’s announcement from Pfizer, theme park stock prices, among others, surged. According to a report on Variety, “Disney opened up [at] more than 14%.” Investors are now hoping for a bigger reopening of the company’s theme parks when the time is right.

The trial vaccine “was found to be more than 90% effective in preventing COVID-19 in participants without evidence of prior SARS-CoV-2 infection…”

It’s important to remember that tests are currently ongoing and it’s not likely that the vaccine will be rolled out to the majority until next year.