Jane Street alleged SoFi playbook

SoFi shares dropped after first-quarter earnings on April 29, and social-media users quickly claimed Jane Street and Citadel had run an intraday “playbook” in the stock. (finance.yahoo.com) (x.com) Yahoo Finance showed SoFi at $16.32 at 9:31:03 a.m. Eastern, down 11.11% from the prior close of $18.36, after opening at $16.55. (finance.yahoo.com) The same quote page said SoFi had reported first-quarter revenue of $1.1 billion, up 41% year over year, while the stock sold off despite record loan originations and member growth. (finance.yahoo.com) SoFi’s investor-relations site scheduled the company’s first-quarter 2026 earnings call for 8 a.m. Eastern on April 29, putting the results out before the opening bell. (investors.sofi.com) No public filing or regulator statement reviewed here shows Jane Street or Citadel directed trading in SoFi on April 29. The circulating allegation comes from a social-media post, not from an exchange notice, Securities and Exchange Commission action, or court filing tied to that session. (x.com) The claims landed in a stock already under pressure from Muddy Waters, which disclosed a short position in SoFi on March 17 and then published a March 30 report alleging a $312 million JPMorgan loan was booked as a sale. (muddywatersresearch.com 1) (muddywatersresearch.com 2) SoFi rejected those allegations the same day the first Muddy Waters report appeared. The company said the short seller’s claims showed “a fundamental lack of understanding” of its financial statements and said it was exploring legal action. (investors.sofi.com) Part of the online argument centers on retail order flow, the stream of small investor orders that brokers route for execution. A 2025 Securities and Exchange Commission working paper said uninformed retail flow is valuable to wholesalers because it carries limited adverse-selection risk and lets them profit from the bid-ask spread. (sec.gov) The Securities and Exchange Commission has also said payment for order flow can create conflicts with a broker’s best-execution duty. In a 2022 statement, Commissioner Jaime Lizárraga said the practice was “one particular area of concern” after the meme-stock episode of 2021. (sec.gov) That does not prove the SoFi thread’s sequence of overnight buying, selling into the open, dumping inventory, and buying back shares. It does show why a sharp move in a heavily watched retail stock can quickly turn into a debate about market structure, wholesalers, and who benefits from fast execution. (x.com) (sec.gov)