Bucket 4 — Digital Securities (Tokenized Securities)
Last researched: 2026-05-18
Definition
Crypto assets that "represent the ownership of a financial instrument enumerated in the definition of 'security'" under §2(a)(1) of the Securities Act and §3(a)(10) of the Exchange Act. "Tokenized securities are and will continue to be securities under the federal securities laws." — Chair Atkins, 2025-11-12 ([S1])
Per 33-11412, these are securities. Full stop. Putting a security on a blockchain does not change its classification — "economic reality governs; labels do not" ([S4]).
Distinction worth memorizing
- Tokenized security: a token that represents a pre-existing security (e.g., a tokenized share of stock, a tokenized bond, a tokenized fund interest).
- Security token: industry slang. Often loosely used to mean either (a) a tokenized security or (b) a token that is a security because it represents an investment contract.
- Investment-contract token: a token issued as part of an investment contract under Howey. May or may not survive the maturation transition (see Bucket 1).
In this KB:
- "Tokenized security" = pre-existing financial instrument wrapped on-chain.
- "Investment-contract token" = security under Howey because of how it was sold and the surrounding economic reality.
Both are securities. Both live in this bucket while they are securities.
What counts as a "security" under §2(a)(1)
Non-exhaustive: any note, stock, treasury stock, security future, bond, debenture, evidence of indebtedness, certificate of interest or participation in any profit-sharing agreement, investment contract, certificate of deposit for a security, voting-trust certificate, fractional undivided interest in oil/gas/mineral rights, put, call, straddle, option, etc.
A tokenized version of any of the above is a security.
Compliance burden — what tokenizing a security entails
If issuing:
- Registered offering (Form S-1) OR
- Exempt offering: Reg D 506(b), Reg D 506(c), Reg A+ Tier 1 or Tier 2, Reg CF, Reg S, Rule 144A. See 12-safe-harbors-exemptions.md.
If trading:
- Must trade on a national securities exchange or a registered alternative trading system (ATS).
- Intermediaries must be registered broker-dealers.
- A registered transfer agent must maintain the record of ownership (the SEC has not waived this for on-chain shares — the smart contract may be part of the transfer-agent function but the regulated person/entity must still register). See 13-secondary-market-ats.md.
Custody
Broker-dealers holding crypto-asset securities for customers must comply with the Customer Protection Rule (Rule 15c3-3). The 2025 broker-dealer FAQs clarified custody and financial-responsibility expectations ([S2]). The earlier SAB 121 posture (treating customer crypto as on-balance-sheet liability) has been retracted in 2025; a successor framework is forthcoming under Project Crypto ([S2]).
Common tokenized-security patterns
- Tokenized equity — on-chain shares of a private company (e.g., Vaulto-Protocol-style synthetic shares of private companies fall in or near this bucket — fact-specific).
- Tokenized debt — on-chain bonds, notes, structured products.
- Tokenized fund interests — on-chain shares of an investment company, BDC, or fund.
- Tokenized real-world assets (RWAs) where the on-chain claim is a security under U.S. law — many RWA structures are securities.
Anti-fraud and disclosure
Full anti-fraud and disclosure regime applies: Sections 11, 12, and 17 of the '33 Act; Section 10(b) and Rule 10b-5 of the '34 Act; insider-trading rules; market-manipulation rules.
Compliance checklist
- Issuance under a registered or exempt path with proper filings (Form S-1, Form D, Form 1-A, Form C, etc.).
- Investor accreditation/verification if relying on 506(c).
- Bad-actor checks (Rule 506(d)).
- Transfer agent engaged and registered.
- Custody arrangements compliant with broker-dealer rules where applicable.
- Secondary trading only via registered venues.
- Disclosure documents accurate; ongoing disclosure obligations (e.g., Reg A+ semiannual/annual) met.
- State blue-sky compliance (if not preempted).
Open questions and tensions
- Smart-contract transfer logic vs registered transfer agent: how does on-chain transfer reconcile with §17A(c) transfer-agent registration? Expect rulemaking.
- On-chain shareholder votes and proxy rules.
- Tokenized securities trading 24/7 vs market-hours conventions and best-execution duties.
- Cross-border tokenization under Reg S vs onshore Reg D in a single token contract.
- DeFi composability — putting a tokenized security into an AMM may amount to operating an unregistered exchange.
Primary sources
[S1], [S2], [S6], [S8] — see 99-sources.md.
