The Software Behind Tokenized Assets: How Stocks, Funds and Gold Move On-Chain

Tokenized assets are shares, fund units and gold bars recorded as tokens on a blockchain. None of them exists on its own. Behind every token sits a chain of software vendors, and this guide walks through that chain for people who buy software for a living.

One note on terms before we start: asset tokenization has nothing to do with the data tokenization that hides card numbers in payment systems. Same word, unrelated problem.

Key takeaways

Tokenized assets on public blockchains, stablecoins excluded, add up to $38.6 billion or $46.2 billion in October 2026, depending on the tracker.
Six layers of software sit behind a tokenized asset, and different vendors usually run them.
“Tokenized stock” is a loose label. It can be the legal share, a claim on a share held by a custodian, or price exposure only.
On 17 September 2026 the SEC opened a five-year conditional route for on-chain trading of tokenized US stocks. Synthetics are out.

What asset tokenization means

Asset tokenization puts a record of ownership on a blockchain. That is all a token is: a line saying who owns a traditional asset, or who has a claim on it.

The share or gold bar itself does not move. It stays with a custodian or in an issuer’s register, and what the holder really owns depends on a legal structure that changes from product to product.

The market is small. On 1 October 2026, rwa.xyz counted $38.61 billion of tokenized assets in distributed on-chain value across 39 networks, and Token Terminal data put the figure near $46.2 billion across 36 chains. Stablecoins are excluded from both.

By one July 2026 estimate, 97% of tokenized value sits outside the reach of US retail investors, and Treasuries are the only class that has reached production-grade maturity. McKinsey projects $2 trillion by 2030, which is a forecast and nothing more.

The six layers behind a tokenized asset

No single product creates a tokenized asset. An issuer mints the token and keeps the register. A custodian holds the asset, compliance tools decide who may hold the token, auditors confirm the reserves, a blockchain settles transfers and distributors sell it.

Look only at the token and you see one layer of six.

Layer	What the software does	Examples
Issuance and register	Mints the token, maintains the ownership record, handles corporate actions	Securitize (transfer agent for BlackRock’s BUIDL fund), Backed (xStocks), Ondo
Custody	Holds the shares or bullion behind the token	Custodian banks and brokers for equities, Brink’s vaults in London for PAXG, Swiss vaults for XAUT
Compliance and access	Identity checks, allow-lists, regional blocks, token freezes	xStocks are not offered in the US; PAXG and XAUT contracts include a freeze function
Data and proof of reserves	Attestations, oracles, bar look-up tools	KPMG (monthly, PAXG), BDO Italia (quarterly, XAUT), Chainlink feeds
Settlement network	The chain the token lives on and the asset used to pay for it	Ethereum (about 48% of the market), BNB Chain, Solana, stablecoins as the payment leg
Distribution	Puts the token in front of users	Exchanges, broker apps, swap services, DeFi protocols such as Aave

Some layers now sit inside one company. Kraken agreed to buy Backed in December 2025 and has since completed the deal, so the issuer of xStocks and a major venue for trading them share a roof.

That is handy for a buyer, up to a point: fewer contracts to manage, and a bigger bet on one counterparty.

Distribution, where tokens reach users

Most buyers never look at the first five layers. They meet a token at the last one, distribution: an exchange, a broker app, sometimes a swap service.

The payment leg gets sorted out there too. These tokens are usually paid for in stablecoins, and the stablecoin has to sit on the right network before anything can be bought.

Take a team that holds USDT on Tron. Network fees there are paid in TRX, so a small USDT to TRX exchange comes before anything else. ChangeNOW, a non-custodial swap platform, handles that kind of swap and lists tokenized stocks, ETFs and gold on a single page. The same Circle share shows up there twice, once issued by Ondo and once as an xStock, next to the gold tokens XAUT and PAXG.

Two tokens, one share. They can differ in issuer, custody, chain and the rights attached, and a distributor shows only a ticker and a price. The rest is in the issuer’s own documents, which is where you have to go and look.

What each asset class asks of the software

The three asset classes in the headline put the weight on different layers. With stocks the hard part is the ownership register. Funds lean on compliance, since most of them can be sold only to a restricted group of investors. Gold depends on proof that the metal is in the vault.

So the first question for any vendor is which layer it actually runs.

Tokenized stocks

Three models exist, and each needs different software.

In the issuer-sponsored model the blockchain record is part of the company’s shareholder register, so the token is the share and the key vendor is a transfer agent. Securitize did this with its own stock: it listed on the NYSE as SECZ on 2 July 2026 and made the same common shares available on Solana and Avalanche that day. Reported on-chain issuance at launch varies by source, between roughly $266 million and $295 million.

In the custodial model a third party buys the shares, keeps them with a custodian and issues tokens 1:1. xStocks work this way. Holders get the economic exposure but are not on the shareholder register, so the software that matters here is custody and redemption. xStocks passed $10 billion in combined exchange and on-chain volume within six months of launch.

The third model is synthetic: the token tracks a price and nothing else.

Tokenized funds

Funds are the most mature class of tokenized assets. Tokenized US Treasury products held about $13.9 billion in late September 2026, and BlackRock’s BUIDL fund, with Securitize as transfer agent, is in this group.

Access is the catch. Many of these products are limited to institutions, accredited investors or non-US persons, which makes investor checks and allow-lists the part of the stack doing the heavy lifting.

Tokenized gold

Gold is a two-horse market. PAX Gold (PAXG) and Tether Gold (XAUT) hold about nine-tenths of it. Each token is backed by one troy ounce of London Good Delivery gold, kept in Brink’s vaults in London for PAXG and in Swiss vaults for XAUT.

Here the data layer carries the product: reserve reports from an outside auditor, and a tool that shows which bar sits behind a wallet. Tokenized gold spot volume reached $90.7 billion in the first quarter of 2026, above the $84.64 billion recorded for all of 2025, according to CoinGecko figures.

Two caveats. Both issuers can freeze tokens in a wallet, and a full bar can be redeemed only from about 430 tokens.

What the SEC’s Innovation Exemption asks of trading software

On 17 September 2026 the US Securities and Exchange Commission issued a temporary order, the Innovation Exemption. Certain venues can now trade tokenized US-listed stocks on public blockchains without registering as exchanges.

Not forever, though. The order runs for five years, and it came days after the CLARITY Act stalled in the Senate.

The logic is one that Larry Fink, chairman and CEO of BlackRock, and Rob Goldstein, its chief operating officer, put into a single line in late 2025: “A bond is still a bond, even if it lives on a blockchain.” The same goes for a share. A token with a shareholder’s rights is treated as the stock, and a price-tracker is left out.

For the software behind such a venue, the order reads like a requirements list:

Check rights before listing. A third-party token must carry the same rights as the share, dividends and votes included, and synthetics are excluded.
Notify the company whose stock is tokenized 30 days ahead. It can object.
Track volume against the caps: 0.25% of average daily volume for S&P 500 and Russell 1000 stocks, 2.5% for other stocks.
Halt trading when the underlying stock halts.
Publish trade data within ten minutes, on smart contracts that are public and auditable.
Control who can use the venue. Primary offerings and leverage are banned.

Law firm summaries differ on points of detail, including the statutory basis cited, so check the order text on sec.gov before relying on any single summary for compliance purposes.

What changes next for platforms

A tokenized share or gold token is traded through the same machinery as any other digital asset. Nothing special about it. That machinery breaks down into routing, execution and settlement layers, with stablecoins carrying value between the fiat entry and exit points — a pattern that shows up across blockchain applications well beyond trading.

The NYSE is building on the same parts. It signed a memorandum of understanding with Securitize, which would act as digital transfer agent for a planned NYSE platform for tokenized securities with round-the-clock trading, stablecoin funding and on-chain settlement.

Planned is the word. The platform is not live.

What this means if you buy software

Most of the coverage in this space is written for investors. If you are evaluating vendors instead, three things follow from the six-layer structure.

Ask which layers a vendor operates itself. A platform that runs issuance but partners out custody, attestation and distribution has three counterparties you inherit. The marketing page rarely says which is which.

Treat consolidation as a trade, not a win. Kraken owning Backed means fewer contracts and a single point of failure. Neither is automatically better; it depends on whether your risk register cares more about vendor sprawl or concentration.

Expect the compliance layer to drive the bill. Identity checks, allow-lists and jurisdiction blocks are where cost and implementation time concentrate, in much the same way they do in identity verification software, where per-check rates are published but screening add-ons more than double the headline price.

Questions to ask a vendor

Before signing with a provider of tokenized assets, a team should be able to answer six questions. They apply to an issuer, a custodian and a distribution platform alike. Most answers are in the issuer’s terms; marketing pages tend to skip them.

Who issues the token, and what is it legally: the security, a claim on it, or price exposure?
Where is the authoritative ownership record, on the blockchain or in a separate register?
Who holds the underlying asset, and which auditor confirms it?
Who may hold and transfer the token, and which jurisdictions are blocked?
How does redemption work: minimum size, fees, timing?
Can the issuer freeze tokens, and what happens during a trading halt?

Frequently asked questions

It depends on who issued the token. Securitize put its own SECZ stock on a blockchain, and there the token is the registered share, with every right a shareholder has. Custodial products are a different arrangement: a third party buys the shares, holds them and issues tokens against them, which gives the holder the economic exposure and leaves the name off the shareholder register. Synthetic tokens go no further than following the price. The SEC’s September 2026 order draws its line there — a token is admitted only if it gives its holder the same rights as the underlying stock, dividends and voting included.

What is an asset tokenization platform?

Software that creates tokenized assets and then looks after them for as long as they exist. Day to day that covers minting and burning tokens, keeping the ownership register, checking who the investors are, enforcing transfer restrictions and paying out dividends. Not every platform does the whole list. Securitize is among the providers that add transfer-agent and broker-dealer licences on top. Others run a single layer and lean on partners for custody, reserve attestations and distribution, so before comparing prices, find out which layers a platform actually operates itself.

Can US investors buy tokenized stocks?

Mostly no, at least for now. The bulk of tokenized stock products on the market, xStocks among them, are not offered to US persons. There is one way in already: issuer-sponsored shares such as SECZ can be bought through a regulated platform, after identity verification and subject to securities-law requirements. A second route is on its way — the SEC’s Innovation Exemption of 17 September 2026 allows on-chain trading of tokenized US-listed stocks on qualifying venues for five years, and each venue has to publish a notice at least 30 days before it starts.

How is asset tokenization different from data tokenization?

They share a word and nothing else. Data tokenization replaces a sensitive value, typically a card number, with a meaningless substitute so the real number never travels through a payment system. Asset tokenization records ownership of a real-world asset on a blockchain. If a vendor’s materials use the term without saying which one they mean, that is worth clarifying early.

Which blockchain do most tokenized assets use?

Ethereum carries roughly 48% of the market, with BNB Chain and Solana also active, across 36 to 39 networks depending on the tracker. The chain matters to a buyer mainly for the payment leg: the stablecoin used to settle has to exist on the same network, and network fees are paid in that chain’s native asset.

How big is the tokenized asset market?

Between $38.6 billion and $46.2 billion in October 2026 excluding stablecoins, depending on whether you use rwa.xyz or Token Terminal. The two trackers count different numbers of networks, which is most of the gap. Tokenized US Treasury products account for about $13.9 billion of it, making funds the most mature segment.

This article is general information about software and market structure, not investment, legal or tax advice. Figures are as reported in October 2026 by the trackers named and change frequently. Regulatory summaries are simplified; consult the primary source and qualified counsel before acting.