NYSE Has Spent a Year Testing Avalanche for Tokenized Securities
The New York Stock Exchange has been running hands-on tests of Avalanche blockchain technology for roughly a year, working alongside Ava Labs to evaluate how the network could power on-chain settlement for tokenized equities and exchange-traded funds. No formal blockchain selection has been announced, but the depth and duration of the evaluation makes this one of the most significant steps any incumbent exchange operator has taken toward live tokenized-securities infrastructure. For accounting firms, auditors, and CFOs already investing in crypto accounting software, the stakes are real: if the world's largest exchange brings tokenized stocks on-chain, the volume and complexity of digital asset positions on client balance sheets will grow sharply.
What Ava Labs and ICE Actually Said
Ava Labs President Charley Cooper spoke at a summit in New York on 18 September 2026, confirming that NYSE had spent the previous year testing Avalanche technology and integrating it with its own systems. Cooper described the relationship with NYSE parent Intercontinental Exchange as a "close working relationship," but deliberately declined to say that Avalanche had been selected. "I leave it to the NYSE guys to talk publicly about where they are in the whole process," he told The Block's Gareth Jenkinson.
ICE's own framing
ICE's Head of Strategic Initiatives, Michael Blaugrund, appeared on the same stage and added notable colour. He confirmed ICE was actively working with the Avalanche team as it evaluates blockchain platforms, and said "Avalanche checks a lot of those boxes for us." That language stops well short of an endorsement but goes further than most exchange executives have been willing to say publicly about any specific layer-1 network.
What NYSE has already disclosed
NYSE previously announced it is developing a platform for the trading and on-chain settlement of tokenized equities and ETFs, subject to regulatory approval. The proposed architecture pairs the exchange's existing Pillar matching engine with blockchain-based post-trade infrastructure. Importantly, the design is intended to support multiple blockchains for settlement and custody rather than locking into a single network. In August 2026, ICE also published a request for information on tokenized-securities market infrastructure and named tZERO as a design partner for the planned NYSE-affiliated platform. No blockchain provider has been formally named.
Why the Integration Test Matters Beyond the Headline
A year-long technical evaluation by an exchange of NYSE's scale is not a proof-of-concept exercise. Cooper noted that NYSE had pressed Ava Labs not just on technology but on project economics, seeking to confirm whether the blockchain company understood the exchange's broader business model. That kind of commercial-due-diligence depth suggests NYSE is in a late-stage assessment rather than an exploratory scoping phase.
The multi-chain settlement design
The fact that the NYSE platform is designed to be multi-chain is significant for accounting professionals. A tokenized equity that settles on one chain today could migrate to another as commercial agreements evolve. That creates version-control problems for any firm trying to maintain a complete, auditable record of a client's tokenized holdings. Digital asset accounting software that is hard-coded to a single network's data model will be inadequate. The better-positioned tools are those already built around chain-agnostic transaction ingestion and flexible asset-classification schemas.
The wrapped-token accounting challenge
NYSE's planned instruments fall squarely in the wrapped-token and tokenized-asset category. A tokenized share of a listed equity is economically equivalent to the underlying, but its on-chain representation introduces accounting questions that standard equity-settlement workflows do not address: Which ledger entry represents legal ownership? How is the custodian's on-chain position reconciled with the transfer-agent record? What happens to accrued dividends during the settlement window if the blockchain finalises before the cash leg? These questions are not hypothetical. They will arrive the day the platform goes live, and firms that have not updated their chart-of-accounts taxonomy or their reconciliation procedures will face immediate audit exposure.
The Regulatory Backdrop
Cooper also referenced the SEC's recently issued exemption framework that now allows certain on-chain trading of tokenized stocks. That regulatory development, which our earlier analysis of the SEC innovation exemption for tokenized securities venues covered in detail, is the proximate reason incumbent exchanges are accelerating their evaluations. Without a legal pathway to operate, none of these pilots could move to production. The exemption creates that pathway, and NYSE's year-long Avalanche test is a direct downstream consequence.
Extended trading hours as a related pressure
Cooper also predicted that some venues will begin offering 24-hour weekday trading within a year, though he expressed uncertainty about whether the largest incumbent exchanges would move that quickly. He acknowledged that smaller venues are already making a compelling case for liquidity migration. Our earlier piece on what the SEC's 24-hour trading move means for crypto accounting explains why round-the-clock settlement creates specific cut-off and accrual problems for finance teams working to close monthly books.
The combination of tokenized instruments and near-continuous trading hours is not a future problem. It is a current one for any firm onboarding clients who hold tokenized equities on platforms that already operate outside standard market hours.
Accounting and Audit Implications for Firms and CFOs
For accounting practices serving financial-services clients, and for CFOs at asset managers or broker-dealers, the NYSE-Avalanche development has a set of concrete near-term implications that are worth working through systematically.
Asset classification and measurement
Under both US GAAP and IFRS, tokenized equities are likely to be classified as financial instruments and measured at fair value, consistent with the treatment of the underlying security. However, the on-chain wrapper introduces a second layer of risk that standard equity accounting ignores: smart-contract risk, custodian insolvency, and bridge failures can impair value in ways that have no direct equivalent in traditional equity settlement. Auditors will need to assess whether management's fair-value methodology adequately captures these additional risk dimensions, or whether a separate risk-disclosure note is warranted.
Custody and control assertions
SOC 1 and SOC 2 reports from traditional custodians do not cover on-chain key management. If NYSE's platform places legal title on-chain, the custody-and-control assertion in an audit of a fund holding those instruments needs to extend to the private-key infrastructure and the smart-contract governing redemption. Firms should be identifying now whether their current custodian's controls documentation covers this, and whether their crypto bookkeeping software can pull wallet-level balance data to support a confirmations-equivalent procedure.
Tax treatment of tokenized equities
The IRS has not issued specific guidance on tokenized exchange-listed securities. The most defensible current position is that a tokenized share of a listed US equity is treated identically to the underlying for federal income-tax purposes: capital-gains holding periods, dividend characterisation, and wash-sale rules all apply. However, the creation event (the moment an equity is tokenized) and the redemption event (the moment it is converted back) may each constitute a taxable disposition depending on whether the taxpayer is treated as exchanging one property for another. Firms should be documenting the positions they take for each client now, before the volume makes it impractical to reconstruct the analysis.
Choosing the right digital asset accounting software
The NYSE-Avalanche development is a useful stress-test for evaluating whether a firm's current digital asset accounting software is fit for purpose. The minimum capabilities needed to handle tokenized-equity positions are: ingestion of on-chain transaction data from multiple networks, asset-level classification that can distinguish tokenized securities from utility tokens or stablecoins, automated reconciliation against custodian statements, and an audit trail that maps each on-chain event to the corresponding general-ledger entry. Any tool that requires manual intervention to handle a new chain or a new token standard will become a bottleneck the moment NYSE goes live and client portfolios start including tokenized AAPL or tokenized SPY ETF positions.
What Firms Should Do Before the Platform Launches
NYSE has not announced a launch date, and the platform still requires regulatory approval. That window is an opportunity, not a reason to defer action.
Three practical steps for accounting practices
First, update your engagement terms and client questionnaires to capture whether clients hold or plan to hold tokenized securities. The onboarding friction is far lower now than it will be after the asset class scales. Second, review your current crypto bookkeeping software against the multi-chain ingestion and asset-classification criteria described above. If it cannot handle Avalanche's C-Chain transaction format today, ask your vendor when support will be added and get that commitment in writing. Third, begin drafting internal technical memos on the custody-and-control assertion approach you will take for tokenized-equity positions, drawing on PCAOB and AICPA guidance on digital-asset auditing where applicable, so that partners are not drafting those positions under audit deadline pressure.
For CFOs at asset managers and broker-dealers
Engage your prime broker and custodian now to understand how they plan to handle tokenized-equity positions on the NYSE platform. Ask specifically whether their controls documentation will cover on-chain key management and whether their reporting feeds will include chain-native transaction identifiers. If the answers are vague, you have time to find alternatives before the platform goes live. You do not want to discover a reconciliation gap after you have already taken a tokenized-equity position on behalf of a fund.
Frequently Asked Questions
Has NYSE officially selected Avalanche as its blockchain?
No. As of 18 September 2026, no formal selection has been announced. Ava Labs President Charley Cooper confirmed a year-long testing relationship and a close working dynamic with ICE, and ICE's Head of Strategic Initiatives said Avalanche "checks a lot of boxes," but both parties stopped short of confirming a final decision. The NYSE platform is also designed to support multiple blockchains, so a single-network selection may not be the outcome.
How should tokenized equities be classified on a balance sheet?
The most defensible treatment under US GAAP is to classify a tokenized listed equity as a financial instrument and measure it at fair value through earnings, consistent with the underlying security. The on-chain wrapper does not change the economic substance of the holding. However, auditors should consider whether additional risk disclosures are required to reflect smart-contract and custodian-key-management risks that are not present in traditional equity settlement.
Does the IRS treat a tokenization event as a taxable disposition?
The IRS has not issued specific guidance on this point. The conservative position is that converting a listed equity into a tokenized form, or vice versa, may constitute an exchange of property and therefore a taxable event if the token is treated as a distinct asset from the underlying. Firms should document the position taken for each client and monitor IRS guidance as the asset class grows.
What does "multi-chain settlement" mean for audit procedures?
If a tokenized security can settle on more than one blockchain, auditors need confirmation procedures that cover each chain on which a client holds positions. A balance-confirmation procedure that only queries one network will produce an incomplete picture. Audit teams should update their digital-asset confirmation templates to capture the chain identifier alongside the wallet address and token contract.
When does the NYSE tokenized-securities platform go live?
No launch date has been announced. The platform is subject to regulatory approval. Ava Labs President Cooper indicated he expects some venues to begin 24-hour weekday trading within a year, but he expressed uncertainty about whether the largest incumbent exchanges would move that quickly. Firms should treat the timeline as uncertain but plan their readiness work as if approval could come within 12 to 18 months.
Source: The Block