Twitter stock is down over 5% following a report from Citron Research that exposes a major potential problem for the social media company...

Alongside Facebook and Google, Twitter is now being hauled in by Senate Judiciary Chairman Chuck Grassley (R-Iowa) to a hearing on data privacy on April 10.

Wait until the Senate finds out that:

Twitter Will Generate $400 million THIS YEAR, by just selling user data. Not advertising.

How important is Data Licensing to Twitter? The Scary Answer

In 2017, ad revenue declined to $2.11 billion from $2.25 billion in the prior year while data licensing revenue grew to $333 million from $282 million in the prior year.

TWTR CFO Ned Segal on Q4'17 earnings call last month that data licensing is "a really high margin business". TWTR generated $333 million in data licensing revenue in 2017.