DeFi Intel

What is Security Token?

Plain-English explainer · Updated 2026-07-02 · By DeFi Intel

How it works

Security tokens are created through a tokenization process where an issuer works with a regulated platform to convert traditional securities into blockchain-based tokens. The issuer must comply with securities laws, including registration or exemption, and typically uses smart contracts on Ethereum or other compliant blockchains. Standards like ERC-1400 provide a framework for transfer restrictions, investor accreditation, and legal documentation, ensuring the token adheres to regulations such as the SEC's Rule 144A or Regulation D.

Once issued, security tokens are traded on regulated secondary markets or alternative trading systems (ATS) like tZERO or INX. These platforms enforce compliance through smart contract logic that restricts transfers to verified, accredited investors. The token's smart contract manages ownership records, dividend distributions, and voting rights, automating corporate actions. Custody solutions, such as those from BitGo or Coinbase Custody, hold the private keys, providing institutional-grade security.

The underlying asset is legally linked to the token via a trust or special purpose vehicle (SPV), ensuring token holders have enforceable rights. For example, a real estate property might be held by an LLC, with the security token representing membership interests. Token holders can trade on secondary markets, but transfers are subject to lock-up periods and compliance checks. This model reduces settlement times from days to minutes and lowers costs by eliminating intermediaries like transfer agents.

Why it matters

Security tokens bridge traditional finance and blockchain, offering increased liquidity for illiquid assets like real estate or private equity through fractional ownership and 24/7 trading. They automate compliance and reduce administrative costs via smart contracts, while providing investors with transparent, programmable ownership. This innovation could democratize access to private markets and streamline capital formation, though regulatory clarity remains a key challenge.

Real-world examples

Real-world examples include the tZERO platform, which issued its own security token (TZROP) representing equity in the company, and the INX token, a regulated security token offering on Ethereum. The ERC-1400 standard, proposed by Polymath, is widely used for compliant token issuance. These tokens are traded on regulated ATS platforms like tZERO and OpenFinance.

FAQ

What is the difference between a security token and a utility token?

A security token represents ownership in an external asset and is subject to securities regulations, while a utility token provides access to a product or service and is not considered a security. Security tokens must comply with laws like the SEC's Howey Test, whereas utility tokens often avoid such classification.

How are security tokens regulated?

Security tokens are regulated by securities authorities such as the SEC in the US, requiring registration or an exemption like Regulation D or Regulation A+. Issuers must follow KYC/AML procedures, and trading is restricted to accredited investors on regulated platforms.

Can security tokens be traded on decentralized exchanges?

Most decentralized exchanges cannot enforce the transfer restrictions required for security tokens, so they are typically traded on regulated alternative trading systems (ATS) or security token exchanges that implement compliance checks via smart contracts.

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