Keith Patrick Gill (born 1986) is an American financial analyst and investor known for his posts on the subreddit r/wallstreetbets. His analyses of GameStop stock (NYSE: GME) and details of his resulting investment gains—posted on Reddit under the username DeepFuckingValue (DFV) and on YouTube and Twitter as Roaring Kitty—were cited as a driving factor in the GameStop short squeeze of January 2021, and as a spark for the subsequent trading frenzy in retail stocks. The rising stock value allowed Gill to turn a US$53,000 investment into one worth close to $50 million (as of January 28, 2021).

Gill’s posts were described as “forthright, spreadsheet-laden content”.[6] His Reddit username derives from the investing term deep value, as Gill claims to be a proponent of value investing. Reuters revealed his identity to the public on January 28, 2021, after an investigation of public records and social-media posts.

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