Facebook ended the week $58bn lower in value after its handling of a historic data breach.
Its founder Mark Zuckerberg apologised for data breaches that affected 50 million users.
The apology did not stop investors from selling shares in Facebook, with many wondering just how bad the damage will be for the social network.
The breach was called a "light bulb" moment for users, spawning a the social media trend #deletefacebook.
All the negative headlines led to some advertisers saying "enough is enough".
Shares in the social media company fell from $176.80 on Monday to around $159.30 by Friday night.
Will the shares recover?
Facebook's initial public offering in 2012 priced shares at $38 each, giving the company a market valuation of close to $104bn.
Following steady user growth and a dominant space in the digital advertising market ensuring revenues, Facebook's share price climbed to $190 by February this year.
Brian Wieser, senior analyst at Pivotal Research, said he had one of the most negative outlooks for Facebook's share price on Wall Street.
"I had a $152 price target on Facebook for 2018 - and that was before the events of this week".
Mr Wieser said the share price slump showed investors were wary of increased regulation and users leaving the platform "but there's little risk of advertisers leaving Facebook. Where else would they go?"
Hargreaves Lansdown senior analyst Laith Khalaf said the week had been a "damaging episode" in Facebook's history.
"One of the secrets of Facebook's success has been that the more people who use Facebook, the more integral it becomes to its customers. Unfortunately for Facebook, the same dynamic cuts in the opposite direction if it loses a meaningful number of users as a result of this scandal. "