Two different businesses trade under the name Arca in US wealth management. The California group Arca Labs has run a registered Treasury fund since 2020 whose shares are issued as ArCoin. The New York company Arca came out of stealth in June 2026 with $64m for an AI platform built around advisers. The name is all they share.
This profile covers the first: the fund treated as the pioneer of tokenised Treasury exposure, and still alive in SEC filings.
Concept
Precision about status is the load-bearing part here. The manager is Arca Capital Management LLC, an investment adviser registered with the SEC: file number 801-118646, CRD 305964, status ACTIVE, at 4551 Glencoe Avenue, Marina Del Rey, California. Registration under the Investment Advisers Act 1940 means a public Form ADV and an adviser's fiduciary standard; it is not a licence to deal in digital assets. The same register shows a second group adviser at the same address — Arca Investment Management, LLC, file number 801-126316, CRD 298298, also ACTIVE. Per the fund's prospectus, the manager is wholly owned by Arca Labs, LLC, which is indirectly wholly owned by Praesidium Holdings, Inc.
The fund is a separate person: Arca U.S. Treasury Fund, a Delaware trust, CIK 1758583, Investment Company Act 1940 file number 811-23392 and Securities Act 1933 file number 333-236320. In law it is a closed-end management investment company with interval repurchases under Rule 23c-3 — an ordinary registered fund rather than a crypto product in a wrapper. The status is live: Form NPORT-P was filed on 25 August 2026 for the period to 30 June, the monthly N-23C3A repurchase notices run without gaps, the N-CSR annual report was filed on 9 March 2026, and the prospectus in post-effective amendment No. 8 on 30 April 2026.
What ArCoin actually is
The prospectus describes the construction more carefully than the sector's marketing does. ArCoins are digital asset securities: uncertificated securities with a digital copy of the shareholder register viewable on the Ethereum blockchain. Record ownership sits with the transfer agent, Securitize, LLC, regulated by the SEC, whose records constitute the official shareholder records and govern ownership of ArCoin in all circumstances. The on-chain copy is pseudonymised: a holder appears as a wallet address. One sentence of the prospectus removes the sector's central misunderstanding — "Blockchain technology does not play a controlling role in the sale, issuance, transfer or custody of ArCoin".
Transfer restrictions are wired into the token. A buyer passes AML/KYC and is whitelisted by the transfer agent before any purchase — directly, through an ATS, or in a peer-to-peer transfer; Securitize, as developer, programmes the compliance restrictions into the ERC-20 standard, and a transfer to an address outside the whitelist simply fails. Tokenisation here adds a settlement layer to a conventional register rather than replacing it; the same logic runs through the note on tokenisation of real-world assets.
Key parameters
The table gathers the registration details and terms on which the fund is compared with other ways of holding dollar liquidity.
| Parameter | Position at 30.08.2026 |
|---|---|
| Adviser | Arca Capital Management LLC, SEC 801-118646, CRD 305964 |
| Fund | Arca U.S. Treasury Fund, 1940 Act 811-23392, 1933 Act 333-236320 |
| Form | closed-end interval fund, Rule 23c-3 repurchases |
| Entry | from $1,000, further investments from $100, at NAV |
| Fees | 0.05% a year, expense cap 0.75% until 30.04.2027 |
| Liquidity | monthly repurchase of 6% of shares, 25% cap over three months |
| Net assets | $451,340.98 at 30.06.2026 |
The last line explains the rest: by sector standards the fund remains microscopic.
Getting in and getting out
The offering is public and continuous: up to 100,000,000 shares at NAV through the principal underwriter, Distribution Services, LLC, in reliance on Rule 415. The minimum initial investment is $1,000 and subsequent investments start at $100. A registered fund requires no accredited investor status, which separates this construction from private placements: the filter is whitelisting and AML/KYC rather than a wealth test.
The exit works as it does in any interval fund. The shares are not listed on any national securities exchange; the fund offers monthly to repurchase 6% of outstanding shares, provided the three most recent offers together stay within 25%. Secondary trading runs through individually negotiated peer-to-peer transactions and a single ATS under Regulation ATS, which the prospectus itself names as the source of limited liquidity and greater price volatility. The holder pays the Ethereum network fee when tendering shares. Distributions accrue daily and are paid quarterly.
The record-keeping perimeter is conventional, and that is where the holder's protection actually sits: assets are held by UMB Bank, N.A. as custodian under section 17(f)(1) of the Investment Company Act 1940, administration and fund accounting run through Ultimus Fund Solutions LLC, and pricing comes from ICE Data Services. How that layer works in general is covered in the note on securities custody.
Economics and scale
The management fee is 0.05% a year of average annual net assets, and under the Expense Limitation Agreement the adviser reimburses expenses above 0.75% of average daily net assets until 30 April 2027, with a right of later recoupment. At 31 December 2025 Arca and its affiliates had roughly $243m under management; the fund's portfolio manager has been Jeffrey M. Dorman since launch in July 2020.
The fund's own scale sits far below the ambition. At 30 June 2026 total assets were $661,693.77, liabilities $210,352.79 and net assets $451,340.98; monthly average net assets for 2025, per Form N-CEN, were $434,504. The prospectus does not hide the conclusion: to maintain viable operations the fund estimates it needs to raise $100m, with no assurance that it will. Tokenised Treasury products from the large managers took the volume, while the first mover stayed a demonstration of the mechanism. The wider dollar context is in the survey of digital dollar forms and the stablecoins profile.
The namesake: Arca of New York
On 24 June 2026 a company called Arca announced $64m of funding for an AI wealth management platform: a $15.5m seed led by Venrock and a $48.5m Series A led by General Catalyst with Index Ventures and Venrock participating. The product is pitched as AI around the adviser's work — equity compensation, tax, estate and exit planning — and is addressed to US clients. It has no connection to the California Arca Labs group. An IAPD search for "arca" on 30 August 2026 returns no match for the New York platform, so its adviser registration should be checked against the actual legal entity in Form ADV before any assets or client data change hands; the general frame is in the notes on RIA status and investment platforms.
Q/A
Is ArCoin a cryptocurrency?
No. These are shares of a registered fund issued as uncertificated securities with a digital copy of the register on Ethereum. The prospectus states directly that blockchain plays no controlling role in the sale, issuance, transfer or custody of ArCoin: the official register is kept by the transfer agent, Securitize, LLC, under SEC regulation.
Is accredited investor status required?
No. The fund is registered under the Securities Act 1933 and offered publicly by prospectus, with a $1,000 minimum and subsequent investments from $100. The real filter is completing AML/KYC and having the wallet address whitelisted by the transfer agent.
How quickly can an investor exit?
Through the monthly offer to repurchase 6% of outstanding shares, with the three most recent offers capped at 25% in total. There is no exchange listing, and secondary trading runs through a single ATS and peer-to-peer transactions, so selling a large holding on a chosen day is not guaranteed.
How large is the fund?
At 30 June 2026 net assets were $451,340.98 on total assets of $661,693.77. The prospectus estimates that viable operations need $100m while stating that no minimum need be raised and giving no assurance it will be. Its Risk of Fund Closure factor concerns closing the fund to new investors at the adviser's discretion; liquidation for want of size is not among its risk factors.
Is this the Arca that raised $64m from Venrock and Index?
No. The New York AI platform Arca announced its round on 24 June 2026 and is unconnected to the California Arca Labs group. When checking a counterparty, match the legal entity by SEC file number and CRD rather than by name.