A Dirty Trick or Coincidence: Did Citadel Accelerate the Collapse of Aschenbrenner's Fund?

In the tough financial world of Wall Street, Ken Griffin, founder of the Citadel empire, is known as one of the most aggressive and powerful players. However, following the dramatic collapse of Leopold Aschenbrenner's Situational Awareness hedge fund a few days ago, sharp accusations have surfaced on social media and among trading communities that Griffin used a 'dirty trick' and well-timed maneuvers to engineer the fund's fall and acquire its assets at a bargain price.

The theory identifies a particularly suspicious sequence of events.

On July 27, 2026, the empire's market-making arm, Citadel Securities, published an aggressive and surprising macroeconomic forecast.

The company's chief analyst, Frank Flete, predicted that the Fed would surprise the markets and raise interest rates the following day. The announcement made waves, spiked bond yields, and increased pressure and panic on technology and AI stocks.

Two days later, on July 30, when Aschenbrenner's leveraged fund collapsed under a barrage of margin calls, Citadel's hedge fund arm stepped in and bought the bulk of Aschenbrenner's public stock portfolio at a deep discount.

A margin call is an immediate demand from a broker or bank to deposit additional money into a trading account when the value of assets or collateral falls below a minimum threshold.

Critics argue that the unusual forecast was intended to ignite the exact panic needed to break the leveraged fund and force it into a fire sale.

It is important to qualify this — there is no proof that Citadel engaged in intentional manipulation. Even leading financial media outlets like The Wall Street Journal and the Financial Times, which covered the deal, did not link the publication of the interest rate forecast to the portfolio purchase, nor did they raise claims of manipulation.

Chronologically, Aschenbrenner's investor letters revealed that the fund had suffered catastrophic losses and margin calls as early as July 24 — three days before Citadel published its report. Secondly, by law, the market-making arm and the hedge fund arm (both founded by Griffin) are separated by strict Chinese Walls to prevent the transfer of information. Additionally, Citadel's interest rate forecast was not entirely disconnected from reality, as three members of the Fed committee did indeed vote for an interest rate hike that same week.

When Griffin 'smells blood'

For 'Wall Street veterans,' Citadel's move against Aschenbrenner sounds familiar.

Many recall the Melvin Capital affair. However, even in that case, despite public criticism and suspicions, it was not proven that Citadel acted illegally or coordinated moves to influence the market.

Melvin Capital hedge fund fell into a catastrophic 'short squeeze' on GameStop stock following a coordinated attack by retail investors from a Reddit forum, losing about 53% of its value in a short time.

When the fund was on the verge of immediate liquidation by banks, Griffin did not offer a financial lifeline out of kindness, but set tough conditions. Citadel (along with Point7) injected $2.75 billion into the fund (of which $2 billion came from Citadel alone).

In exchange for 'breathing room,' Griffin did not buy ordinary shares, but demanded a direct and permanent share of Melvin's management and performance fee revenue (Revenue Share) for three years. He exploited the fact that his competitor had no other choice, in order to siphon off future profits at a floor price.

At the same time, Citadel Securities was the primary market maker for Robinhood, which led to claims of a conflict of interest when Robinhood restricted trading in GameStop. These claims sparked investigations and hearings in the US Congress.

However, no evidence was found that Citadel influenced Robinhood's decision to restrict trading. Ken Griffin and the heads of Robinhood denied any coordination, and investigations did not determine that there was manipulation.

In June 2022, Melvin Capital announced the closure of the fund after failing to recover from the losses caused by the GameStop affair.

Just as it happened in 2021, in the events of July 2026, the mechanics remained the same.