Atomic Settlement, Tokenized Securities, and the SEC: How Real‑Time Markets Are Reshaping Finance Modernization
There's an intersectionality at play with SEC guidance on tokenized securities, atomic settlements, and how institutions are thinking about modernization.
Editor’s note
Recent guidance from the U.S. Securities and Exchange Commission has clarified how existing securities laws apply to tokenized securities without creating a new market framework or mandating changes to settlement. At the same time, tokenization, real-time processing infrastructure, and shifting client behavior are compressing expectations around settlement speed and finality across financial markets.
This article examines how those forces intersect and discusses how the emergence of atomic settlement provides a useful lens for evaluating modernization strategies and why some approaches that appeared sufficient under batch-based assumptions now reveal structural limits in production.
Why Timing Has Become a Strategic Variable
For much of the last decade, discussions about modernization within financial institutions followed a familiar pattern, centered on costs, timelines, vendor risks, and whether the anticipated benefits justified multi-year, multi-million dollar transformations. Those debates haven’t vanished. Boards and executive teams still grapple with sequencing, ROI, and operational disruptions. What's changed is the strategic role that time plays in the equation.
For decades, time served as a buffer, one that often worked in favor of the very institutional systems that benefited from it. Batch processing, delayed settlements, and netting cycles absorbed complexity, allowing risk to be modeled, queued, reconciled, and managed down the line. Even when industry leaders recognized that legacy core systems constrained innovation, the pressure to act was rarely felt urgent. Architectural limits were tolerated because time made them workable.
But today, that buffer is now eroding.
Tokenization, real-time payment rails, and always-on markets are steadily compressing settlement cycles. What was once settled overnight, and then in T+2 or T+1, is increasingly expected to be resolved immediately. As settlement compression accelerates, long-standing assumptions about netting, delayed finality, manual reconciliation, and operational slack are no longer theoretical design choices. Production environments are now exposing them directly.
This shift has been building for years. What has changed recently is the regulatory context in which it is unfolding.
Regulatory Clarity and the Narrowing of Uncertainty
In late 2024, the U.S. Securities and Exchange Commission issued a joint staff statement clarifying how existing U.S. securities laws apply to tokenized securities. The statement reaffirmed a foundational principle: a security remains subject to securities laws regardless of whether ownership records are maintained on a blockchain, a traditional system, or a combination of both. Confirming that representing a security as a digital asset, through tokenization, does not alter its regulatory treatment.
The guidance is deliberately narrow. It focuses specifically on tokenized securities and does not extend to other forms of tokenization, such as digital representations of art, collectibles, physical goods, or non-security assets. In many respects, this is reasonable if the rules are to remain comparable to existing investment and asset management practices. It reflects staff views intended to help market participants prepare registrations, proposals, or requests for Commission or staff action. It is not a rulemaking and does not introduce new legal authority. (SEC staff statement / no-action context)
That narrowness is precisely what gives the statement its weight.
For institutions that had adopted a wait-and-see posture, the guidance removes a long-standing source of ambiguity. The remaining questions are no longer primarily about permissibility. They concern execution: how custody, transfer, disclosure, recordkeeping, and settlement obligations are fulfilled when securities are represented and moved through new technical architectures.
As the National Law Review observed in its analysis of the statement,
“There is no ‘magic’ created by tokenization. The application of blockchain technology does not change the nature of the underlying security or the regulatory framework that governs it.”
— National Law Review, “No Magic Here — SEC Statement on Securities Tokenization”
The SEC’s statement outlines various tokenization frameworks, including:
Issuer-supported models, like Integrated On-Chain Recordkeeping and Off-Chain Record with Token Notification, as well as
Third-party tokenized securities, which may involve: Custodial Tokenized Securities (Tokenized Entitlements), Synthetic Tokenized Securities (Linked/Derivative Models), which specifically includes Linked Securities and Security-Based Swaps (SBS) instruments.
You can read more on the joint statement and directives from the Divisions of Corporation Finance, Investment Management, and Trading and Markets of the U.S. Securities and Exchange Commission (the “SEC”), here.
This is especially important for institutions and firms that have remained intrigued but on the sidelines about whether to proceed with tokenization. Across the frameworks outlined by the SEC, the core obligations remain consistent: custody, transfer, disclosure, and recordkeeping. What changes is:
Where and how those obligations are executed.
The chosen technical architecture is whether issuer-supported, custodial, synthetic, or platform-based.
How regulatory requirements are fulfilled in practice, making design decisions an extension of compliance rather than a layer on top of it.
How Technical Architecture Carries Regulatory Obligations
As tokenized securities move into regulated production, technical architecture increasingly determines how regulatory obligations are satisfied in practice. The SEC’s joint staff statement on tokenized securities makes the core position explicit: representing a security on a blockchain does not change its legal treatment. What it does change is where and how longstanding obligations are carried out.
In the “staff’s” own framing, the relevant questions are not whether tokenized securities are subject to the federal securities laws, but how custody, transfer, disclosure, recordkeeping, and customer protection obligations are fulfilled when those securities are issued, held, and settled using new technical “plumbing.” That framing is reflected in the specific models described by the SEC staff.
Issuer-supported tokenization models.
In Integrated On-Chain Recordkeeping and Off-Chain Record with Token Notification structures, the issuer or its transfer agent remains the legal record owner, while a distributed ledger is used for some or all of the operational recordkeeping. In these designs:
The traditional registrar or transfer agent continues to bear formal recordkeeping obligations under the securities laws.
The on-chain environment becomes part of the same recordkeeping system for practical purposes, because transfers and ownership updates occur there.
Reconciliation between on-chain and off-chain records is no longer a periodic back-office task; it is an ongoing requirement to satisfy recordkeeping, reporting, and customer protection duties.
In other words, the SEC’s “same rules” principle forces architecture to operate as a compliance instrument:
If the on-chain record is treated as operationally authoritative, then the integrity, governance, and auditability of that ledger become regulatory concerns rather than merely engineering choices.
If the off-chain record is definitive, the system must be designed to ensure that on-chain activity can be reliably synchronized and, where necessary, overridden or corrected in accordance with transfer agent obligations.
Third-party and platform-based tokenization models.
The “staff statement” also contemplates Custodial Tokenized Securities (Tokenized Entitlements) and Synthetic Tokenized Securities (Linked/Derivative Models), including linked securities and security-based swaps. In these cases, architecture around custody and control becomes determinative:
In custodial entitlement models, the token represents a claim on securities held by a qualified custodian. Compliance with safeguarding, segregation, and customer protection rules depends on how wallets, omnibus accounts, and sub-accounts are structured, and how control over private keys is exercised and documented.
In synthetic or linked models, the token tracks the value or performance of an underlying security or basket of securities, often via a derivative or swap. Here, the platform’s risk engine, valuation feeds, and margin mechanics are integral to the implementation of disclosure, suitability, and risk management obligations.
In both cases, details that might once have been treated as implementation minutiae—wallet design, key management, segregation rules, and permissioning logic—now function as compliance mechanisms:
Who has the ability to initiate or block a transfer is directly related to custody and control under the securities and custody rules.
How entitlements are updated across omnibus and sub-account structures maps to customer protection, segregation, and recordkeeping obligations.
How synthetic payoffs are calculated and settled, and how those processes are disclosed to investors, bears on disclosure and anti-fraud standards.
Settlement architecture and the timing of compliance.
The “staff’s” focus on “new plumbing, same rules” also has clear implications for settlement design. Frameworks that enable near-instant or atomic settlement compress the time available for compliance checks. Under a batch-based, T+1 or T+2 regime, many obligations were satisfied through:
Pre-trade controls and counterparty onboarding;
Intraday risk monitoring; and
Post-trade reconciliation and exception handling before finality.
When asset and cash legs settle atomically or near-instantly, that temporal buffer disappears. Sanctions screening, eligibility checks, transfer restriction enforcement, and position limits must be evaluated in the same window as execution itself. Practically, this means:
Sanctions and KYC/AML engines must be callable as real-time services within the settlement workflow.
Transfer restriction logic (e.g., Section 5 constraints, Reg S/Rule 144A limitations, or investor qualification rules) must be implemented as programmable controls, not merely as legal covenants or operational procedures.
Exception handling must be moved in front of or alongside execution, rather than being reserved for end-of-day repair.
This is where the interaction with recent market volatility and the discussion of atomic settlement becomes most visible. The February 2026 digital-asset drawdown showed how markets behave when margining, liquidations, and collateral movements occur continuously, with no overnight window for reconciliation. From the SEC’s perspective, the rules did not change in that episode—but the operational surface on which the rules must be enforced did.
From abstract obligations to concrete design choices.
Taken together, the models in the SEC staff statement show how tokenized securities are being organized within existing regulatory frameworks:
Issuer-supported models keep traditional roles intact, but require synchronized, dual-environment recordkeeping.
Custodial entitlement and synthetic models push custody, key management, and platform risk engines into the foreground as the effective locus of compliance.
Settlement designs that move toward near-real-time or atomic execution relocate compliance from a predominantly procedural and post-trade layer into a real-time system requirement.
Within these boundaries, tokenization is no longer peripheral infrastructure. It is embedded in the core of how regulated instruments are issued, held, and settled, and is therefore subject to the same expectations around resilience, auditability, and operational control as traditional market systems. Architecture choices now determine not only how systems perform under normal conditions, but how regulatory duties are carried out under stress, including during periods of abrupt repricing and liquidity strain, when the absence of temporal buffers is felt most acutely.
When Settlement Expectations Compress
When ownership updates and transfers occur with greater immediacy, expectations regarding finality, operational responsiveness, and system coordination are compressed. Even when tokenized securities operate within familiar regulatory frameworks, they behave differently from traditional book-entry instruments. Once institutions move beyond proof of concept, these behaviors collide with infrastructure built around delay.
Consequences that become most visible under stress.
In early February 2026, a sharp risk-off move provided a live-fire illustration. U.S. equities sold off as investors digested another batch of earnings and interest-rate commentary, with the S&P 500 swinging lower intraday and volatility measures spiking. At the same time, crypto markets experienced an even more abrupt repricing. Bitcoin recently fell below $61,000, representing a drop of roughly 30% in less than 60 days, some analysts have since warned of a potential slide of an additional 25% or more if selling pressure persists and key technical levels fail to hold.¹ In leveraged venues, the mechanics of that repricing were unforgiving: liquidations triggered automatically as collateral thresholds were breached, orders executed into thinning order books, and positions were closed within minutes as prices fell faster than liquidity could be replenished. (Decrypt: Bitcoin Crash Could Deepen to $38K, Say Analysts)
For participants in those on-chain environments, the episode was operational rather than theoretical. Liquidity had to be available at the moment of execution. If it was not, positions were resolved immediately. There was no opportunity to net exposures across accounts, no delay to mobilize funding, and no post-trade window to correct mismatches. Risk surfaced all at once rather than being distributed across time.
By contrast, comparable stress in traditional market structures is often absorbed differently. Margin calls, variation settlements, and reconciliation processes typically unfold across intraday or multi-day cycles. That temporal spacing does not eliminate risk, but it shapes how it is managed: firms can source liquidity, rebalance exposures, and resolve discrepancies before legal finality. Time functions as a risk-management tool.
The February drawdown was not caused by atomic settlement, nor does it suggest that traditional markets should replicate crypto-native mechanics wholesale. Its relevance lies in what it reveals about what happens when settlement finality approaches immediacy:
Stress is absorbed through real-time liquidity availability rather than through end-of-day netting.
System coordination across venues, custodians, and collateral pools becomes a first-order constraint.
Operational assumptions that once relied on overnight batches or T+1 cycles are exposed directly.
This is the lens through which atomic settlement enters the discussion. Atomic settlement is not a policy objective being imposed on markets so much as a condition that makes these dynamics explicit: when asset and cash legs settle in a single, indivisible event, time no longer functions as a buffer for incomplete integration, manual workarounds, or deferred reconciliation.
That has direct implications for how institutions interpret and ultimately respond to the SEC’s recent tokenization guidance.
The joint staff statement clarified that representing a security on-chain does not alter its legal treatment, but it validated a set of concrete implementation models—issuer-supported records, custodial entitlements, and synthetic structures—within which tokenization can proceed. In practical terms, that guidance narrowed uncertainty around whether institutions can participate and shifted the emphasis to how they will do so.
The February episode underscores why that “how” now hinges on settlement mechanics.
Regulatory clarity enables institutions to move from pilots to production across the SEC’s tokenization frameworks.
Settlement design, including whether and where atomic or near-atomic finality is introduced, determines how those decisions perform under stress.
For decision-makers evaluating modernization paths, the trade-offs are no longer abstract:
Incremental, batch-dependent architectures may remain compliant on paper, but they assume time as a shock absorber.
Architectures that move closer to real-time or atomic settlement must demonstrate their ability to deliver precise liquidity, synchronized records, and real-time compliance when markets move quickly.
Opening the door for tokenization to enter production under clearer regulatory guardrails. The open question is whether the chosen modernization path will allow participation to remain viable as settlement expectations compress and stress arrives in real time.
Atomic Settlement and the Compression of Time
Against this backdrop, atomic settlement moves from a thought experiment to a concrete design choice. The SEC’s tokenization guidance confirms that existing rules apply regardless of how ownership records are maintained; the February drawdown illustrates how markets behave when settlement expectations approach immediacy. Atomic settlement sits at the intersection of those two forces. It does not change the rules, but it does change when and where those rules must be executed.
In its simplest form, atomic settlement, often implemented as Delivery-versus-Payment (DvP) on-chain, requires the simultaneous exchange of an asset and its payment in a single, indivisible transaction. Either both legs complete, or neither does. There is no interim exposure between trade and finality, no daylight credit risk, and no reliance on batch windows to reconcile discrepancies. Recent work on on-chain DvP has shown how this model can collapse what are today separate stages, trade confirmation, messaging, asset movement, and cash settlement, into a single coordinated action, rather than a sequence of loosely coupled steps. (Chainlink overview)
From an engineering perspective, this coordination is increasingly feasible. Smart contract platforms and cross-domain messaging frameworks can orchestrate conditional transfers across asset ledgers, payment systems, and collateral pools with deterministic logic. From an institutional perspective, however, atomic settlement does something more uncomfortable: it exposes how much of today’s operating infrastructure quietly depends on time, on overnight netting, intraday credit, and post-trade repair, to function at scale.
Global standard-setters have begun to unpack the implications of that shift. The Committee on Payments and Market Infrastructures (CPMI) at the Bank for International Settlements (BIS) notes that atomic settlement fundamentally redistributes risk across the system.² Counterparty exposure between trade and settlement can fall sharply when payment and delivery are bound together. But other forms of risk move forward in time:
Liquidity risk increases at the point of execution, because participants must have sufficient, pre-positioned funds and assets available when the atomic event occurs.
Operational and technical risk become more concentrated, as system availability, latency control, and deterministic execution are prerequisites for completing settlement rather than for cleaning up afterward.
Coordination risk increases across linked infrastructures, trading venues, custodians, cash ledgers, and compliance engines that must act in concert within tight time windows.
In the BIS framing, risk management does not disappear; it is compressed. Functions that were historically distributed across post-trade processes, netting, reconciliation, and exception handling are pulled forward toward the moment of execution. (BIS CPMI report)
That compression has second-order effects that matter directly for modernization decisions:
Greater reliance on pre-positioned liquidity. Netting efficiencies shrink when fewer transactions can be offset over time. Participants must more precisely fund gross exposures, and liquidity buffers must be sized for real-time rather than end-of-day conditions.
Reduced tolerance for latency and retries. Delays, manual interventions, or failed messages that were once tolerable within T+1 or T+2 cycles become potential settlement failures when asset and cash legs must complete atomically.
Heightened importance of system uptime and determinism. Infrastructure outages, inconsistent ledger states, or non-deterministic processing can now halt or fragment settlement, rather than being absorbed by later reconciliation.
Engineering research from AWS and Iason reach similar conclusions from the systems side.³ They describe atomic settlement as a coordination problem across independently operated systems: asset ledgers, cash ledgers, compliance services, risk engines, and liquidity sources. Many of these components were never designed to act synchronously: (AWS / Iason: Atomic Settlement)
Asset records may live on public or permissioned blockchains.
Cash balances may sit in central bank RTGS systems, commercial bank ledgers, or tokenized deposit platforms.
Compliance and risk checks may be implemented as separate services, batch jobs, or manual workflows.
Achieving atomic settlement across that landscape requires more than a smart contract. It requires a redesign of how those systems exchange information, prove state, and commit to outcomes within a bounded time window. The research highlights that, without that coordination, attempts at atomic settlement can inadvertently create new failure modes, stranded transactions, partial updates, or asymmetric views of ownership and payment.
In practice, atomic settlement removes time as a shock absorber. Any inconsistencies between systems must be resolved before execution, not reconciled after it. For institutions operating under the SEC’s tokenization frameworks, this has three important implications.
First, compliance moves into the execution path. Under issuer-supported, custodial, or synthetic tokenization models, obligations around custody, transfer restrictions, and customer protection already extend into the technical architecture. With atomic or near-atomic settlement, those obligations must be satisfied in real time:
Sanctions screening, KYC/AML checks, and eligibility rules can no longer rely on overnight lists or post-trade surveillance alone; they must be callable as live services within the settlement workflow.
Transfer restrictions embedded in offering documents—such as limitations under Section 5, Regulation S, or Rule 144A—must be enforced as programmable controls that can block or modify transactions at the point of execution.
Recordkeeping obligations that previously depended on end-of-day reconciliation must now be met through synchronized, authoritative ledgers, both on-chain and off-chain.
Second, hyper-volatile conditions become a design requirement rather than an edge case. The February 2026 drawdown showed how quickly positions can be repriced, margined, and liquidated in always-on markets. Atomic settlement would not have caused that volatility, but it would have shaped how it was transmitted:
Liquidity shortfalls would translate more directly into failed or cancelled settlements rather than into intraday credit extensions.
Collateral movements would occur at the same cadence as price changes, forcing continuous liquidity management rather than allowing exposures to be smoothed across cycles.
Operational or coordination failures among trading venues, custodians, and payment rails would manifest immediately as settlement breaks, rather than appearing hours later during reconciliation.
For institutions designing tokenized products within the SEC’s frameworks, atomic settlement therefore becomes a stress-testing lens: a way to ask how their chosen architecture behaves when markets move quickly and time can no longer be treated as a buffer.
Third, atomic settlement clarifies the trade-offs between modernization paths. Migrating to cloud-native cores, building parallel digital stacks, or launching tokenization pilots may all be consistent with the SEC’s guidance. The question is whether those paths can sustain:
The required precision in liquidity when netting and delays can no longer mask structural frictions.
The real-time data consistency needed to treat on-chain and off-chain records as a single operational truth at the moment of settlement; and
The compliance and risk controls must now operate inside execution windows measured in seconds rather than days.
Seen this way, atomic settlement does not add new obligations on top of the SEC’s tokenization rules. It alters the constraint set within which those obligations must be met. Counterparty risk between trade and settlement may shrink, but liquidity, operational, and coordination risks become more acute at the instant of finality. For decision-makers, the strategic question is no longer only whether tokenization is permissible, but whether their modernization strategy can withstand a world in which settlement, regulation, and volatility all operate on real-time terms.
Atomic Settlement, Client Expectations, and Market Stress
Against the backdrop of SEC decision-making on tokenized securities guidelines, institutional adoption of tokenized assets is poised to accelerate. Many leaders are now wondering how best to proceed. While some asset managers have launched tokenized funds and digital-asset products at scale, and some banks are extending custody, settlement, and collateral services into regulated environments, there are additional considerations that must be addressed for those who have taken a wait-and-see approach. These initiatives increasingly require real-time asset movements to coexist with batch-based cores, exposing tensions that become most visible under stress.
Client behavior is a primary source of that pressure.
According to recent industry analysis, stablecoins account for roughly one‑third of on‑chain transaction volumes, with annual flows measured in the trillions of dollars. Across 2024–2025, multiple research efforts, including (TRM Labs, 2025 Crypto Adoption and Stablecoin Usage Report). report, describe:
Annualized stablecoin volumes account for roughly 30% of all on-chain transaction volume,
$4 trillion in transaction value in 2025, with strong year‑over‑year growth; and
80% year-over-year volume growth with activity increasingly routed through regulated intermediaries and payment providers, not just speculative venues.
For users relying on these instruments for payments, treasury, and cross‑border settlement, immediacy is no longer novel. Finality is assumed, not negotiated. Those expectations do not remain confined to crypto-native platforms. They shape how clients evaluate responsiveness, transparency, and control across financial services more broadly—from collateral calls to portfolio rebalancing and cash management.
Regulatory clarity is accelerating this shift. As stablecoin legislation and digital-asset market-structure frameworks advance in the U.S. and Europe, perceived career and compliance risks within institutions have diminished. The unresolved question is now operational: whether existing infrastructure can support faster settlement without introducing fragility in liquidity management, reconciliation, and control environments.
In this context, atomic settlement becomes relevant as a feature set, not a slogan.
What Atomic Settlement Changes for Clients
Atomic settlement—often implemented as on‑chain Delivery‑versus‑Payment (DvP)—binds the asset and cash legs of a transaction into a single, indivisible event. Either both transfer, or neither does. In client terms, that means:
Clear, immediate finality: once a transaction executes, ownership and cash balances update in lockstep.
Reduced counterparty limbo: the window between “trade done” and “trade settled” narrows or disappears.
Less reliance on opaque intraday credit: clients see when liquidity is actually available, rather than discovering exposures later.
From an engineering standpoint, recent work on on‑chain DvP shows that smart contracts and cross‑domain messaging can coordinate these flows across asset ledgers and tokenized cash with deterministic logic. From a client standpoint, that logic surfaces as a different experience, especially during sell‑offs and rapid repricing.
Sell-Offs, Repricing, and Real-Time Expectations
Episodes like the February 2026 drawdown, when U.S. equities sold off, and crypto markets repriced sharply, highlight the gap between client expectations and legacy plumbing:
On‑chain, leveraged positions were liquidated automatically as collateral thresholds were breached, with balances updating continuously as prices moved.
There was no delay in mobilizing funding or net exposures across accounts; liquidity had to be available at the time of execution.
In traditional, batch‑oriented environments, similar stress often unfolds over intraday or multi‑day cycles. Margin calls, variation settlements, and reconciliation tasks provide time to source liquidity and fix breaks before legal finality.
Atomic settlement would not cause volatility in such scenarios, but it would change how it is transmitted and experienced:
Clients would see immediate confirmation or failure of trades and collateral movements, rather than waiting for overnight files.
Liquidity shortfalls would surface as failed or blocked settlements, not as intraday credit quietly extended by intermediaries.
Operational and coordination failures among venues, custodians, and payment rails would be visible in real time rather than buried in next‑day adjustments.
For institutional clients, the feature set looks like:
More transparent exposure during repricing events.
Cleaner audit trails around who owned what, when, and
Tighter alignment between trading decisions and balance-sheet reality.
Adoption Data and the Direction of Travel
The adoption data around stablecoins and tokenized instruments reinforces that these are not edge‑case preferences:
Stablecoins: Industry trackers and TRM Labs’ 2025 report point to trillions of dollars in annual stablecoin settlement volume, with robust growth over the past several years and a rising share of on‑chain activity tied to payments, remittances, and institutional flows—not only speculative trading.
Institutional products: Large managers have launched tokenized government money funds and tokenized cash-equivalent products, and major asset managers have introduced tokenized funds and bitcoin‑linked vehicles into portfolios as part of broader liquidity and collateral strategies, not merely as trading experiments.
These data points all point in the same direction: clients are already operating in environments where real‑time settlement is the norm, even if the core of the traditional financial system is still organized around delay.
Under the SEC’s tokenization frameworks, the legal obligations—custody, disclosure, recordkeeping, customer protection—are unchanged. Atomic settlement reshapes the operational constraints under which those obligations must be met. The question is now less whether clients will demand this feature set, they already are, and more whether modernization strategies can deliver it without trading counterparty risk for new, poorly understood forms of liquidity and operational risk.
Atomic Settlement as a Strategic Filter for Modernization
For decision‑makers, the SEC’s tokenization guidance does not prescribe a single modernization blueprint. It does something subtler but more consequential: it clarifies that existing securities laws apply regardless of whether records sit on a blockchain, a legacy system, or both—while market structure and client behavior are steadily moving toward real‑time expectations.
Within that frame, atomic settlement becomes less a niche technical feature and more a useful filter for evaluating which modernization paths remain viable as settlement expectations compress.
Institutions are already experimenting along different tracks. Some have focused on expanding data access and responsiveness around existing cores—BNY Mellon’s Pershing, for example, has invested in API‑based access to custodial data so advisors can act on more current positions without fully replacing underlying systems. (Overview)
Others have built greenfield digital stacks alongside legacy infrastructure. Standard Chartered’s launch of Mox Bank in Hong Kong illustrates this approach: a new, cloud‑based retail platform operating with its own technology environment, even as the group’s traditional systems continue to support other businesses. (Overview)
BlackRock’s tokenized BUIDL fund (overview), which distributes yield on‑chain and can be used as collateral in digital venues, and Franklin Templeton’s OnChain U.S. Government Money Fund (FOBXX - overview), which records ownership and processes transactions on a public blockchain, both demonstrate how production assets can live on new rails while remaining subject to existing regulatory obligations.
What the SEC’s guidance adds is a clearer boundary: across all of these models, custody, transfer, disclosure, and recordkeeping duties do not change. What does change is when and where those duties must be executed as settlement moves closer to real time.
Seen through that lens, atomic settlement becomes a question to apply to each path rather than a destination in itself:
Can this architecture support asset and cash movements that complete in a single, tightly bounded window, without relying on overnight batches or manual repair?
Are compliance, sanctions screening, and eligibility checks able to operate in the same time frame as execution, rather than only before or after it?
Can records stay synchronized across on‑chain and off‑chain environments at the moment of finality, not just in end‑of‑day reports?
Some institutions may decide that full atomic settlement is not an immediate objective. Others may pursue it first in constrained domains—specific tokenized funds, collateral use cases, or internal liquidity flows—before extending it more broadly. In either case, the SEC’s clarification and the recent behavior of always‑on markets shift the modernization question from “Should we upgrade?” to “Which changes keep us credible when clients, products, and regulators all assume that settlement can happen on real‑time terms?”
As tokenization moves from pilots into production under established regulatory guardrails, that horizon is against which modernization choices will increasingly be judged. Atomic settlement, whether adopted directly or used as a design benchmark, offers a way to test whether an institution’s chosen path can withstand that future rather than merely coexist with its past.
Marina Mendenhall-Valente
Partner, Tiburon Advisory Group | Founder of The RWA Ledger
The RWA Ledger is written by a former TradFi leader for today’s TradFi leaders, helping them confront the realities of crypto and tokenization before it’s too late.
Views are my own. This publication is for informational purposes only and does not constitute financial advice, endorsement, or investment solicitation.


Great write up!