91% of Tokenized US Stocks Are Backed by Just One Broker: Unpacking the Backbone of the $4.6 Billion RWA Stock Empire
Author: stein
Compiled by: TechFlow
TechFlow Overview: As crypto assets and Real World Assets (RWAs) accelerate their integration, tokenized US stocks are quietly surpassing the $4.6 billion mark. However, beneath this prosperous facade lies a highly concentrated underlying reality: more than 91% of the actual underlying stocks are custodied with a single US compliant broker, Alpaca.
The “issuance, trading, brokerage, and clearing” four-power separation framework that Wall Street has proudly upheld for a century is being completely disrupted by the end-to-end vertical integration model of crypto institutions. Spanning from instant tokenization clearing workflows to a joint push by top institutions to modernize transfer agent rules before the SEC, a foundational transformation reaching the core lifelines of traditional finance has already begun.
A Highly Concentrated Hidden Fact: Alpaca Monopolizes 91% of Tokenized US Stock Custody
The Real World Asset (RWA) sector is expanding at an astonishing pace, with the tokenized US stock market quietly reaching a total valuation of $4.6 billion.
However, little known is that behind this seemingly vast ecosystem built by dozens of decentralized protocols and fintech platforms worldwide, its underlying assets rely heavily on a single entity.
Latest on-chain and regulatory filing data show that out of the $4.6 billion in tokenized US stocks currently circulating in the entire market, a staggering $4.17 billion (accounting for over 91%) of the real underlying stocks are centrally custodied under the name of a single licensed US broker, Alpaca.
Chart: Distribution of underlying brokers among global tokenized US stock issuers and Alpaca's market share
Whether it's Binance bStocks incubated by the world's leading crypto exchange, mainstream RWA protocol Ondo Finance, emerging synthetic platform xStocks, retail trading giant Robinhood, or institutions like RealityFi and Coinbase, none are exempt from deeply integrating with Alpaca's brokerage custody network at the base layer.
Why would industry giants collectively choose Alpaca? The fundamental reason lies in Alpaca successfully building a developer-friendly brokerage API hailed as “the Stripe of securities trading.”
In the traditional financial world, to conduct US stock trading and custody services for global users, institutions must spend years applying for highly complex cross-jurisdictional broker and clearing licenses, facing extremely high compliance and technical barriers.
In contrast, Alpaca allows various on-chain issuers to complete compliant account opening, batch purchase of real US stock spot positions in the institution's name, and achieve legally compliant segregated custody through concise code calls, drastically shortening product launch cycles.
Traditional Wall Street vs. On-Chain Paradigm: Exchanges Are Devouring the Stock Market
Under Wall Street's century-long mature legal framework, securities markets operate strictly according to the specialized checks-and-balances logic of "four-power separation."
Public companies are only responsible for issuing compliant securities; regulated stock exchanges (such as NYSE and Nasdaq) handle listing matching and price discovery; compliant brokers manage customer funds and accounts on their behalf; and depository trust companies (DTC) control the centralized custody of physical stock registers and inter-institutional clearing and settlement.
This architecture ensures that no single market participant can monopolize operations, thereby effectively preventing misappropriation and conflicts of interest.
Chart: Comparison between Wall Street's traditional securities division of labor system and on-chain vertical integration model
However, in the world of blockchain and Web3, this century-old division of labor is being completely overturned: a single commercial entity has the capability to achieve full-process "end-to-end vertical integration."
Taking Binance's bStocks as an example, the platform serves as both the initiator and issuer of tokenized assets, as well as the core venue for listing and organizing secondary liquidity trading. It even directly controls the settlement closed-loop through integrated underlying brokerage channels.
The vertical integration model brings ultimate capital turnover efficiency, completely eliminating long-chain clearing frictions across institutions, achieving T+0 or even second-level instant settlement, and enabling 7×24-hour uninterrupted trading.
Yet at the same time, this high degree of concentration has also triggered deep concerns among regulators and institutional investors: if a single point of failure or compliance review occurs, the centralized systemic spillover risk will be magnified multiple times.
Different Personalities of Issuers: Where Tokens Reside Determines Their Actual Use Cases
Although major issuers map identical S&P 500 benchmark stocks such as Apple, Nvidia, or Tesla at the base layer, their survival trajectories and ecological niches on-chain are vastly different.
Observing the specific address distribution where these tokenized stocks ultimately settle on-chain provides the most intuitive insight into the use cases and commercial intentions of actual holders.
Chart: Analysis of on-chain asset distribution and holding patterns among major tokenized stock issuers
Products represented by Binance bStocks belong to typical "exchange dwellers". Of its staggering $1.4 billion circulation scale, over 80% remains constantly static in official exchange deposit addresses and maker hot wallets, essentially serving as derivative trading tools for crypto retail users to bypass fiat foreign exchange controls, engage in multi-currency collateral lending, and execute high-frequency contract arbitrage.
In sharp contrast are projects like RealityFi, whose issued tokens exhibit highly distributed "DeFi native" characteristics, widely settling in personal self-custody wallets and major decentralized lending protocols and liquidity pools, truly integrating into the synthetic asset stack of decentralized finance.
Instant Tokenization System Breakdown: Alpaca Workflow and Settlement Logic
The core supporting this cross-border flow of billions in assets lies in the Instant Tokenization clearing workflow built by Alpaca.
The entire business chain spans off-chain fiat banking systems, the DTC centralized clearing system, and automated smart contract state machines. Its standard operational logic is divided into four strict steps:
Chart: Alpaca Instant Tokenization System Technical Architecture and Cross-Institutional Settlement Workflow
Step 1: Market-making institutions establish exclusive corporate accounts with Alpaca, purchase real US stocks intended for tokenization through legal and regulated channels, and complete T+1 spot delivery via the DTC official clearing system, recording them in Alpaca's custody general ledger.
Step 2: Trading institutions initiate minting requests to the tokenization protocol via restricted signatures. Smart contract nodes read Alpaca API compliance custody certificates in real-time, confirming that the underlying spot inventory is fully locked.
Step 3: Smart contracts mint equivalent tokenized stocks on target blockchains (such as Ethereum, BNB Chain, or Arbitrum) at a 1:1 ratio and distribute them to maker or investor accounts, achieving full-process transparency and traceability.
Step 4: When investors initiate reverse redemptions, smart contracts automatically burn the corresponding number of on-chain tokens. Simultaneously, an API trigger notifies Alpaca to sell an equal amount of stock spot positions in the secondary market. The fiat principal, after deducting a minimal fee, is returned to its original source, forming a perfect closed loop.
The Ultimate Lifeline Battle: Four Giants Jointly Urge SEC to Advance Transfer Agent Reforms
As tokenized US stocks surge forward, top industry players have long realized: if the underlying legal ownership still anchors to old-era centralized registers, tokenization will forever remain merely a "derivative synthetic product," unable to truly enter the mainstream.
Recently, four large institutions deeply rooted in compliant finance—Figure, Securitize, Bullish/Equiniti, and Plume Network—formally submitted a landmark joint petition to the US Securities and Exchange Commission (SEC).
The petition strongly urges the SEC to comprehensively advance the modernization of current regulatory rules targeting Transfer Agents.
In Wall Street's legal definition, Transfer Agents are an indispensable institutional cornerstone for all publicly listed companies. Companies must designate licensed Transfer Agents, whose maintained Shareholder Register (Stock Register) serves as the sole legal basis for determining legitimate company ownership.
Once the SEC approves legal ownership registers to be maintained and updated in real-time directly via public chains or compliant permissioned chains, the entire securities industry's clearing foundation will face a fundamental reshape. At that time, tokens will no longer merely represent indirect claims on stocks; the tokens themselves will represent immutable legal share ownership. This will not only completely clear the regulatory fog plaguing the industry for years but also pave the ultimate pathway for trillion-dollar tier Wall Street mainstream assets to go fully on-chain.