The Brief: A "stock market bf" is a boyfriend who invests in and is interested in the stock market.

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The “stock market bf” trope is often paired with an “astrology gf” or an “OnlyFans gf.” Stereotypically, a stock market boyfriend is a boyfriend who is interested in the stock market as a hobby or career. He may also be a finance bro.

The term rose to popularity alongside discourse around StonkGate: when individual investors from the subreddit r/WallStreetBets caused the price of GameStop stock to surge.

https://twitter.com/phoebe_bridgers/status/1355039306901905411

https://twitter.com/foulweathered/status/1354575935752855553

https://twitter.com/twatson_13/status/1354868490184912909