Situational Awareness Pitches Clients on Fluidstack Round at a Reported $40 Billion Valuation
Bloomberg reports that Leopold Aschenbrenner's hedge fund wants clients to co-invest in the AI data center startup at roughly double its September valuation.
Published
Last updated / Fact-checked on
Situational Awareness, the hedge fund founded by Leopold Aschenbrenner, is asking its clients to invest alongside it in a Fluidstack funding round that would value the AI infrastructure startup at $40 billion, Bloomberg News reported on October 29, 2026. A Fluidstack co-founder disputed the report without giving details, and no round has been announced.
Image: Thomas Kvistholt (Unsplash) / CC0 1.0, via Wikimedia Commons
What Bloomberg reported
According to Bloomberg, which cited a person familiar with the matter, Situational Awareness is pitching a co-investment. That structure lets clients put money into a specific deal alongside the fund rather than through the fund itself. Bloomberg said other investors have also been invited to take part.
The reported $40 billion figure is roughly double the valuation Fluidstack reached a few months ago. The size of the round and the full investor list have not been reported.
A representative for Situational Awareness declined to comment, according to Investing.com's summary of the Bloomberg story. A Fluidstack co-founder disputed the reporting but did not elaborate.
A fast run of rounds
Fluidstack's valuation has climbed quickly over 2026, based on its own disclosures and press reports:
| Date | Round | Reported valuation |
|---|---|---|
| January 2026 | Series A, about $830M, led by Situational Awareness | $7.5 billion |
| September 2026 | About $1.5B, led by Jane Street (per Forbes) | More than $18 billion |
| October 2026 | Proposed round (per Bloomberg) | $40 billion |
If a round closes at $40 billion, Fluidstack's valuation would be more than five times its January level and more than double its September level. Until a deal is announced, the October figure is a reported target, not a completed transaction.
The fund behind the pitch
The pitch comes a few months after Situational Awareness came close to collapse. Bloomberg reported that falling technology stocks triggered margin calls on the fund's leveraged positions earlier this year. The fund ultimately sold most of its public stock portfolio to Ken Griffin's Citadel at a discount.
Raising co-investment money for a single private deal gives the fund a way to deepen its exposure to Fluidstack without putting more of its own capital at risk.
Big customers, heavy debt
Fluidstack builds and runs computing infrastructure for AI workloads, a segment often called the neocloud sector. Its largest commitments come from leading AI companies. Anthropic has committed to a $50 billion push to build US data centers with the startup. Google has provided billions of dollars in financial backstops for Fluidstack-related projects, which help those projects secure debt financing.
Those arrangements matter because AI data centers need large sums up front for buildings, power, cooling and chips, long before customer revenue arrives.
Investors are watching that model closely. Bloomberg noted that CoreWeave, the sector's most prominent public company, saw its shares fall sharply last week, while its debt traded at levels that signal distress. Customer contracts can support borrowing, but they do not remove the risk of construction delays or rising financing costs.
Why it matters
The reported pitch shows that private investors are still willing to pay sharply higher prices for AI compute capacity, even as public markets punish debt-heavy neoclouds. It also shows how much the sector's growth depends on a few very large customers. Anthropic's commitment and Google's backstops are what make Fluidstack's financing possible.
For readers tracking the deal, three things will show whether the $40 billion figure is real: a formal announcement from Fluidstack, a named lead investor, and the amount raised. Until then, treat the valuation as a figure reported by Bloomberg and disputed by a Fluidstack co-founder.
More coverage of AI infrastructure is in our Artificial Intelligence hub.
How we reported this
The original Bloomberg article is partly paywalled, so we checked its key points against Bloomberg Law's published excerpt and Investing.com's summary. Details of the September round come from Forbes, as summarized by Quel Placement, because the Forbes article was paywalled. We cut figures from the draft that we could not access directly, including a reported debt total and a revenue projection from an investor memo.
Sources
- Bloomberg Law: Situational Awareness Pitches Investors on Fluidstack Fundraise, Oct 29, 2026.
- Investing.com: Aschenbrenner seeks Fluidstack investment at $40 billion valuation - Bloomberg, Oct 29, 2026.
- NewsX/Reuters brief: Situational Awareness pitches investors on Fluidstack fundraise, Oct 29, 2026.
- Quel Placement: Fluidstack, a $40 billion Series C in the works, Oct 16, 2026.
DailyMech used AI tools to help research and draft this article; it was fact-checked by our editors.