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FLUIDSTACK
FluidStack
Infrastructure · United States · ≈ · 440 · employees

FluidStack Valuation: $7.5B After the Jan 2026 Series A

Private

FluidStack was last valued at $7.5B (post-money). It comes from the $830M Series A of Jan 2026. The company is private, so there is no listed share price.

ProfileValuationFundingCompetitorsStock & IPOHow to invest
FluidStack valuation · at a glance
Last valuation
$7.5B
POST-MONEY · JAN 2026
Lead investors
5
across 4 rounds
Raised across rounds
$2B
4 rounds
Date of last round
Jan 2026
closed 15 Jan 2026
Valuation history

How the FluidStack valuation has moved

1 valuation. The latest, $7.5B post-money, was set by the Series A in Jan 2026.

Latest valuation
$7.5Bpost-money
Set by the Series A · 15 Jan 2026
Valuations
1
Priced rounds with a valuation
Event type
Primary round
The Series A · $830M raised
Undated: Series (undisclosed) at $18B (post-money).
Funding rounds

FluidStack rounds and the valuation each one set

4 rounds
Round
Date
Amount
Valuation
Basis
Series A LATEST
15 Jan 2026
$830M
$7.5B
POST-MONEY
Series A
1 Feb 2025
$200M
—
—
Seed
1 Mar 2019
$3M
—
—
Series (undisclosed)
—
$1B
$18B
POST-MONEY
Lead investors
Leads: Cacti, Jane Street, Leopold Aschenbrenner, Seedcamp, Situational Awareness.
Full funding history — FluidStack profile ›
What the valuation means

What the $7.5B actually measures

A private valuation is the price agreed in one transaction. The FluidStack valuation of $7.5B is a post-money figure from the Series A dated 15 Jan 2026 — the whole company measured after the $830M raised in that round was already inside it. Subtract the round and the pre-money view of the same deal is $6.7B .

The valuation holds until the next priced round or secondary sale. A private company roughly 440 people has no daily price and no order book between rounds.

Where the $7.5B comes from
EventSeries A, dated 15 Jan 2026
Basispost-money
Round size$830M
LeadSituational Awareness, Leopold Aschenbrenner

Frequently asked questions

Is FluidStack publicly traded?›

No. FluidStack is a private company; its shares do not trade on a public exchange.

What is FluidStack's valuation?›

The last valuation is $7.5B (post-money, Jan 2026).

Who has invested in FluidStack?›

Lead investors for each round are in the funding timeline.

Who are FluidStack's competitors?›

The closest infrastructure peers are on the competitors page.

How can I get exposure to FluidStack?›

The routes section explains what is realistically available for a company at this stage.

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