Ken Griffin
playerMoney & Finance
The billionaire whose firm handles most Americans' stock trades was also the clear winner when GameStop trading got frozen — right after he bailed out the hedge fund on the losing side.
Who they are
Ken Griffin, founder of the hedge fund Citadel and the trading firm Citadel Securities.
What they do
The engine names him the clear apex winner of the entire GameStop episode.
How it works
Citadel Securities handles about 40% of US retail stock order flow; on January 25, 2021 Griffin injected $2 billion into the collapsing Melvin Capital, and three days later his firm's biggest retail customer, Robinhood, halted GameStop buying — neutralizing the squeeze risk; in January 2022 Citadel Securities took a $1.15 billion investment from Sequoia and Paradigm (the same VC cluster that owns Robinhood's stock) at a $22 billion valuation.
Why it matters
He came out on top of an event that wiped out others, and he's the single largest individual donor to US Republican and libertarian political infrastructure — showing how the same players sit on every side of the table.
The engine's record — word for word
Founder Citadel LLC (~$63B hedge fund) + Citadel Securities (~40% US retail equity PFOF share). Jan 25 2021: $2B emergency injection into collapsing Melvin Capital. Jan 28 2021: Citadel Securities' largest retail counterparty (Robinhood) halts buying in GME — theatrical neutralization of Melvin's short-squeeze risk. Structural function: unambiguous apex winner of the entire GME event. Citadel Securities received $1.15B investment Jan 2022 from Sequoia Capital + Paradigm at $22B valuation — the VC cluster that also owns Robinhood's equity. Largest individual donor to US Republican/libertarian political infrastructure.
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