Snap (SNAP) stock closed down 6% on Thursday after the reality TV star said she is no longer using the app. The plunge wiped about $1.3 billion off the company's market value.
Jenner has been one of Snapchat's most influential users.
"Sooo does anyone else not open Snapchat anymore? Or is it just me... ugh this is so sad," Jenner tweeted on Wednesday.
In another tweet she said, "Still love you tho snap ... my first love."
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