A security token is a blockchain-based token that represents an investment contract, typically an equity, debt, or fund interest. In the United States, whether a token meets the legal definition of a security is determined by the four-prong Howey test from the 1946 Supreme Court case SEC v. W.J. Howey Co.: an investment of money, in a common enterprise, with an expectation of profit, derived from the efforts of others (FindLaw, Howey test). When all four prongs are met, the asset is treated as a security and falls under SEC jurisdiction, regardless of whether it lives in a bank ledger or on Ethereum.
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Security tokens sit at the intersection of two regulatory regimes: traditional securities law and the emerging stablecoin framework codified by the GENIUS Act of 2025. The distinction matters in practice. A payment stablecoin issued under GENIUS is explicitly carved out of securities law. A token wrapping a share of Tesla is not. Builders who route, hold, or settle these tokens need to know which side of the line their cargo sits on.
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A security token represents an investment contract on a blockchain. The underlying claim can be equity in a company, a unit of a money-market fund, a tranche of private credit, or an interest in real estate. The token is the wrapper. The legal claim, custody arrangement, and disclosure obligations sit underneath. In the US, the Howey test is the framework regulators use to decide whether a given token is a security.
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The distinction between a security token and a utility token is not aesthetic. It governs who can issue the token, who can hold it, where it can trade, and what disclosures the issuer owes. Two tokens with identical ERC-20 bytecode can land in different regulatory buckets based purely on how they are marketed and what they entitle the holder to. The smart contract does not decide. The economic substance does.
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A security token represents an investment contract under the Howey test. A utility token grants access to a service or network function. A payment stablecoin, under the GENIUS Act of 2025, is a fiat-backed token explicitly excluded from being a security. An RWA token is a broader umbrella covering any tokenized real-world asset, which includes some security tokens but also gold, carbon credits, and stablecoins.
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The four categories overlap at the edges. A tokenized money-market fund is both an RWA token and a security token. A stablecoin issued by an unlicensed party may still be a security if it promises yield. A "utility" token sold in a presale with profit messaging routinely fails Howey and gets reclassified. The labels are convenient shorthand. The legal analysis is per-token, per-jurisdiction, per-marketing-claim.
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Under the GENIUS Act, payment stablecoins issued by permitted issuers are not securities and not commodities (Covington analysis). That carve-out is narrow. It applies only to 1:1 fiat-backed payment stablecoins from permitted issuers. Yield-bearing stablecoins, algorithmic stablecoins, and anything outside the GENIUS perimeter still get evaluated under Howey.
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In the US, security tokens are regulated by the SEC, which enforces the Securities Act of 1933 and the Securities Exchange Act of 1934. Issuers must either register the offering or qualify for an exemption (Reg D, Reg A+, Reg S, Reg CF). Transfer agents, broker-dealers, and Alternative Trading Systems handling the tokens need their own licenses. The token being onchain does not change the licensing perimeter.
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Outside the US, the regime fragments. The EU regulates investment-type crypto-assets under MiFID II and the Prospectus Regulation, with MiCA handling utility tokens and stablecoins separately. Switzerland uses the FINMA token taxonomy. Singapore applies the Securities and Futures Act. The same token can be a registered security in one jurisdiction and exempt in another, which is why issuers like Backed historically restricted distribution to non-US persons before US-licensed alternatives emerged.
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In June 2025, Dinari's subsidiary received the first broker-dealer registration in the US specifically to offer tokenized stocks (Yahoo Finance). Dinari also holds a registered transfer agent license. Securitize operates as a broker-dealer, ATS, and transfer agent and issues tokenized fund shares for partners including BlackRock, Apollo, Hamilton Lane, and KKR.
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The four categories share a token wrapper but diverge on legal status, who can hold them, and what backs the claim. The table below summarizes the differences as they apply in the US as of Q1 2026. Treat it as a starting point for analysis, not legal advice. The classification of any specific token depends on the offering, the marketing, and the jurisdiction.
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The boundaries shift as regulators issue guidance and as the GENIUS Act's implementing rules get finalized. The act takes effect on the earlier of 18 months after enactment or 120 days after final regulator rulemaking (Latham & Watkins). Builders should re-check classification when launching a new product line.
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Security tokens replace the legacy plumbing of T+1 settlement, paper-and-DTC custody, and broker-intermediated transfer with onchain settlement that clears in seconds and runs continuously. They unlock fractional ownership of expensive assets, programmatic dividends, 24/7 trading windows, and composability with DeFi primitives that the legacy stack cannot touch.
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For an operator, the practical wins are concrete. Settlement risk shrinks because transfer and payment net in one transaction. Cap tables update in real time. A tokenized treasury can collateralize a loan on Aave the same hour it pays its coupon. BlackRock's BUIDL fund reached $2.3 billion in tokenized assets and trades through Uniswap integrations via Securitize (Bitcoin.com news).
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Robinhood's launch of US stock tokens in the EU in June 2025 illustrates the access angle. European retail users can hold tokenized exposure to over 200 US stocks and ETFs, with 24/5 trading and dividend support, on Arbitrum One pending migration to a proprietary L2 (Robinhood newsroom). The equivalent experience through a traditional EU brokerage involves correspondent banks, FX spreads, and same-day cutoffs.
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The 2026 issuer landscape clusters around a handful of platforms. Backed Finance issues tokenized equities and ETFs under its xStocks brand, including bTSLA, bGOOGL, and bGME, with each token 1:1 backed by the underlying share held in licensed custody (Backed Finance). Kraken announced an agreement to acquire Backed to expand xStocks distribution (Kraken Blog).
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Dinari operates a US-registered broker-dealer subsidiary issuing dShares, blockchain representations of US-listed stocks. As of 2025, Dinari distributes dShares on Coinbase's Base network to non-US users and is rolling out access through third-party trading apps to US users via its newly licensed entity. Dinari has also integrated LayerZero for cross-chain equity transfers (The Defiant).
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Securitize handles tokenization for institutional managers. Its partner list includes BlackRock (BUIDL), Apollo, Hamilton Lane, KKR, and VanEck, with reported AUM of $4 billion+ as of late 2025 (Securitize). Robinhood's EU stock tokens, currently on Arbitrum One, target a planned migration to Robinhood Chain. Ondo Finance sits adjacent: its USDY token reached roughly $740 million in supply across Ethereum, Solana, Mantle, Sui, and Aptos as of Q2 2026, and is structured as a senior unsecured note backed by short-duration Treasuries (Ondo Finance).
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The GENIUS Act regulates payment stablecoins specifically, not security tokens. Its main effect on the security token market is indirect: by carving payment stablecoins out of securities law, it sharpens the perimeter around what remains a security and reduces the regulatory ambiguity for the settlement leg of tokenized-asset trades. Security tokens themselves still sit under the SEC and existing securities law.
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The cleaner stablecoin perimeter matters for security token issuers because most onchain settlement uses stablecoins. A tokenized Tesla share trading against USDC now involves one regulated security (the share) and one statutorily non-security (USDC). Pre-GENIUS, the legal status of the cash leg was contested; post-GENIUS, it is codified. That removes a friction point for institutional adoption.
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Separately, the SEC under the 2025 administration has signaled openness to tokenized securities through Dinari's broker-dealer approval and ongoing engagement on Securitize, Ondo, and Backed product lines. The next inflection is whether US retail access to tokenized equities expands beyond accredited investors. The GENIUS Act explainer covers the stablecoin side in detail.
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For builders routing or holding these tokens, the operator implication is straightforward. Treat the security token leg and the stablecoin leg as legally distinct cargo, even when they ride the same rail. Eco Routes settles cross-chain stablecoin transfers across 15+ chains; the same routing infrastructure can be used to move the cash leg of a tokenized securities trade, while the security token leg follows its own custody and transfer-agent rules. See the tokenization pillar and asset tokenization deep dive for adjacent context.
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Sources and methodology. Howey test framework from SEC v. W.J. Howey Co. (1946). GENIUS Act provisions per Latham & Watkins and Covington & Burling analyses of the law signed July 18, 2025. Issuer figures verified against Backed Finance, Dinari, Securitize, Robinhood, and Ondo Finance public communications as of Q1 and Q2 2026. RWA AUM context from public RWA dashboards. Figures refresh quarterly.
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