Hi Xtreme, do you know how come the price went down today? I am...

Hi Xtreme, do you know how come the price went down today? I am trying to understand why. Is it because people knew this announcement was coming? Or people sold because the company isn't doing well anymore? Or people sold because the company is doing well and they just gave up on it?
I am a bit lost. I thought things were going ok. I am trying to understand the reason for the price drop and so I can be ready next time.