Arkham Intelligence has publicly labeled the onchain wallets tied to Morgan Stanley’s spot bitcoin ETF, MSBT, opening a new layer of transparency for one of Wall Street’s newest crypto investment products. By identifying custodian-linked addresses associated with the fund, Arkham now allows market participants to track part of MSBT’s bitcoin holdings and settlement activity onchain, rather than waiting solely for periodic disclosures and fund reports.
Three wallets identified for Morgan Stanley’s spot bitcoin ETF
According to the report, Arkham’s in-house analytics team identified three wallet addresses connected to the custodial infrastructure behind MSBT. The custody arrangement involves Coinbase and BNY Mellon, and the labeled wallets have been grouped under a verified entity page on Arkham’s platform.
As of around April 18, 2026, those three addresses held a combined 1,348 BTC. Based on bitcoin trading in the $75,700 to $76,000 range at the time, the holdings were worth approximately $102.08 million. Arkham said the publication of these labels gives observers the ability to monitor the fund’s BTC accumulation in near real-time once transfers are finalized onchain.
The firm also noted on X that since inception, MSBT had purchased around $83.6 million worth of bitcoin, while about $64.4 million was visible across the addresses Arkham had identified at that moment. The fund’s holdings have increased since then, suggesting that inflows continued after Arkham’s initial snapshot.
Recent inflows show steady bitcoin accumulation
Arkham’s tracking data highlighted several notable deposits into the labeled wallets during MSBT’s first weeks of operation. One transfer of 177.757 BTC, worth about $13.75 million, arrived roughly 23 hours before publication. Another deposit of 209.296 BTC, valued at approximately $15.47 million, was recorded three days earlier.
In addition to those larger transfers, multiple other deposits ranging from 80 BTC to 415 BTC were observed during the fund’s first two weeks. The report added that no significant outflows had been detected from the labeled wallets over that period. Taken together, the transfer pattern points to a buildout phase, with the ETF steadily accumulating bitcoin as investor demand comes in.
Because spot bitcoin ETFs settle on a T+1 basis, blockchain movements typically appear with about a one-day lag after creation or redemption activity becomes public. Arkham’s dashboard reflects those flows after settlement is completed and the transaction is recorded on the blockchain. That means the data is not fully instantaneous, but still offers a much faster and more granular view than traditional periodic filings.
MSBT enters the market with aggressive pricing
MSBT launched on April 8, 2026 on NYSE Arca, making Morgan Stanley the first major U.S. bank to issue a spot bitcoin ETF. That alone makes the product notable: the bank manages roughly $9.3 trillion in client assets, giving the ETF immediate relevance for traditional finance audiences and institutional allocators.
The fund’s fee structure is also a major part of its market positioning. MSBT carries an expense ratio of just 0.14%, which the report described as the lowest among major U.S. spot bitcoin ETFs. For comparison, Blackrock’s iShares Bitcoin Trust (IBIT) charges 0.25%. In a category where fee competition has become increasingly important, Morgan Stanley appears to be using price as a direct lever to gain early traction.
That strategy may already be showing results. On its first trading day, MSBT posted roughly $34 million in volume and ranked in the top 1% of ETF launches over the prior year, according to Bloomberg ETF analyst Eric Balchunas, as cited in the source material. After about five trading days, net assets had reached approximately $87 million.
Transparency improves, but onchain visibility may still be incomplete
Arkham’s entity page groups the three identified addresses under partial prefixes bc1qa…, bc1qe…, and bc1qn…. Users can view aggregated balances, inflow and outflow charts, and full transaction history from a single dashboard. For traders, analysts, and institutional observers, that provides a live monitoring tool for one of the most prominent new bitcoin ETF issuers in the United States.
Still, Arkham acknowledged that it may not have identified every address connected to the bank’s ETF operations. Morgan Stanley’s own website indicated that MSBT held 1,820.60 BTC as of April 17, 2026, a figure higher than the 1,348 BTC visible in the wallets labeled by Arkham. That gap suggests there may be additional addresses, settlement pathways, or custody-related structures not yet included in the public dashboard.
This distinction matters. Public blockchain data can significantly improve visibility into fund operations, but it does not automatically provide a complete picture unless all relevant addresses have been identified. In the case of institutional products with multiple custodians, internal transfer structures, or operational wallets, partial visibility may still leave room for discrepancies between official fund totals and onchain balances attributed by external analytics firms.
A broader shift toward observable institutional bitcoin flows
The significance of Arkham’s move goes beyond MSBT alone. The platform already tracks wallets tied to major crypto and traditional finance entities, including Coinbase custody, Grayscale, and Blackrock-related addresses. It also monitors government-linked holdings, with the U.S. government entity page showing more than 328,000 BTC in seized assets at the time referenced in the report. Those figures change as prices move and additional addresses are identified.
By adding Morgan Stanley’s ETF to that expanding map of labeled entities, Arkham is pushing institutional bitcoin ownership further into the realm of public observation. For years, investors interested in ETF flows have relied primarily on issuer updates, custodian disclosures, or regulatory filings. Onchain labeling changes that dynamic by letting anyone watch wallet balances and incoming transfers as they settle.
For retail investors, this means easier access to the same behavioral signals that more sophisticated market participants may already monitor. For institutional desks, it offers another real-time data source for assessing demand trends, creation activity, and the pace at which a major bank-backed ETF is building exposure. And for the broader market, it reinforces a central idea of public blockchains: even highly institutionalized financial products can become more transparent once their asset flows touch open ledgers.
Arkham said its analytics platform now covers more than 450,000 entity pages and billions of address labels across exchanges, governments, asset managers, DeFi protocols, and individual wallets. In that context, the labeling of MSBT represents both a specific product milestone and part of a larger trend: the convergence of traditional finance, regulated crypto investment vehicles, and open blockchain-based transparency.
While the available onchain data may not yet capture the full scope of Morgan Stanley’s ETF holdings, it already offers a new level of visibility into how capital is entering the fund. For a market increasingly shaped by ETF flows, that visibility could become an important tool for interpreting institutional sentiment toward bitcoin.