CoinYQ Dossier

SPYx is a Jersey certificate backed by SPY, with creditor rather than shareholder rights

SPYx reached public-chain wallets in June 2025 as a Jersey-law certificate referencing the SPDR S&P 500 ETF Trust. Backed says designated brokers and custodians hold SPY as collateral, while token balances can change through a rebase or valuation multiplier. A holder therefore depends on the issuer, collateral enforcement and contract administrators and does not become a shareholder of SPY or any S&P 500 company.

SPYx references an ETF that tracks the S&P 500

SPYx does not tokenize the S&P 500 directly. Its reference asset is SPY, the exchange-traded trust launched in 1993 to follow the index. That distinction determines whose rules and expenses enter the return.

Backed assigns the certificate its own ISIN, CH1436219716. State Street issues SPY, S&P Dow Jones maintains the index, and neither entity issues or endorses SPYx.

Backed Assets (JE) Limited is the certificate debtor. It is registered in Jersey as company 152608 and wholly owned by the Swiss tokenization company Backed Finance AG. Brokers and custodians hold the reference assets through the issuer structure.

A Jersey certificate turns custody into a creditor promise

The “1:1” statement describes collateral policy, not the transfer of an ETF share into each wallet. A holder relies on certificate terms, custody records and the security arrangement instead of appearing on SPY’s ownership register.

SPY normally distributes cash. SPYx routes received cash through tax and reinvestment, then adjusts a multiplier. EVM balances rebase; on other architectures the raw units can stay still while interfaces multiply them for value.

Permissionless transfer still has administrators and borders

This preserves economic tracking through corporate actions but changes what a wallet number means. The listed 0.0945% annual cost is the ongoing expense of the underlying SPY fund, already reflected in SPY performance. Issuance/redemption fees are separately listed at up to 0.50%, before venue costs.

Direct purchases from the issuer require qualified/professional investor status. Existing holders have a separate redemption route, subject to issuer onboarding, KYC/AML, wallet whitelisting and applicable eligibility and jurisdiction rules. The U.S. Persons exclusion is a legal classification, not merely a citizenship test; partners may impose narrower access rules. Technical transferability does not remove these restrictions or the separate operating hours of issuer dealing and collateral markets.

The EVM contract also depends on assigned roles for minting, burning, pausing, sanctions, multiplier updates and upgrades. Twenty-four-hour transferability therefore coexists with compliance and administrator controls.

Failure ends at collateral, not at the index sponsor

If the issuer defaults, the relevant path is enforcement against allocated collateral and distribution of net proceeds. Market movement, custody gaps, lending, costs or delayed sale can create a shortfall.

Holders do not step through the wrapper to vote SPY shares, demand distributions from the trust, or claim assets from S&P 500 companies. The index name describes exposure; the Jersey certificate defines the remedy.

How the project changed

  1. 1993-01-22
    SPY starts trading

    State Street launches the ETF trust that later becomes SPYx's reference asset.

  2. 2024-01-18
    The Jersey issuer records its articles

    Backed Assets (JE) Limited formalizes the company that will owe xStock certificate obligations.

  3. 2025-06-30
    xStocks launches with SPYx

    The initial Solana lineup includes SPYx, moving SPY-linked certificate exposure into public-chain wallets.

  4. 2026-05-08
    A new prospectus framework is approved

    Liechtenstein FMA approval supplies the current disclosure framework for Backed tracker certificates.

  5. 2026-07-27
    The base prospectus is updated

    Backed publishes the governing collateral, administrator, termination and limited-recourse architecture used to read SPYx rights.

  6. 2026-09-02
    SPYx product terms are refreshed

    The product page records the issuer, both ISINs, the underlying fund’s 0.0945% annual ongoing expense, issuance/redemption fees up to 0.50% and current service providers.

Evidence and primary sources

Last evidence review: 2026-09-05

What is SP500 xStock?

SP500 xStock (SPYx) is certificate CH1436219716 issued by Backed Assets (JE) Limited. Its reference asset is SPDR S&P 500 ETF Trust (SPY), ISIN US78462F1030; SPY in turn seeks to track the S&P 500 Index. An SPYx holder owns the certificate token, not an index unit, an SPY trust share, or shares in 500 constituent companies.

What problem does SP500 xStock solve?

SPY trades through securities accounts and U.S. market infrastructure, which cannot be moved directly through public-chain wallets. SPYx makes the economic exposure portable and fractional on supported chains. That portability adds a Jersey issuer, brokers, custodians, security arrangements, smart-contract administrators and venue liquidity between a holder and the underlying ETF.

How does SP500 xStock work?

Backed describes direct purchases for qualified/professional investors and a separate redemption route for existing holders, both subject to issuer onboarding, KYC/AML, wallet whitelisting and applicable access rules. It states that corresponding SPY collateral is held through named brokers and custodians. The listed 0.0945% annual cost is the ongoing expense of the underlying SPY fund, already reflected in SPY performance. Issuance/redemption fees are separately listed at up to 0.50%, before venue costs. Cash distributions are reinvested net of tax and represented through a multiplier: EVM balance display rebases, while non-rebasing chains apply the multiplier in valuation. The EVM system is upgradeable and role-controlled for minting, burning, pausing, sanctions and multiplier changes. Secondary transfers can occur around the clock, but lawful access, issuer dealing and collateral-market execution retain their own clocks and restrictions.

Key facts

  • SPYx is Backed Product certificate ISIN CH1436219716; it is not the S&P 500 Index or an SPY share.
  • The reference asset is SPDR S&P 500 ETF Trust, ticker SPY and ISIN US78462F1030.
  • Issuer Backed Assets (JE) Limited is Jersey company 152608 and a wholly owned Backed Finance AG subsidiary.
  • The EVM address is 0x90a2a4c76b5d8c0bc892a69ea28aa775a8f2dd48; the Solana mint is XsoCS1TfEyfFhfvj8EtZ528L3CaKBDBRqRapnBbDF2W.
  • Official materials also list multiple EVM networks, Tron and TON; the chain and address must be checked together.
  • Backed describes 1:1 collateral held via Alpaca Securities, InCore Bank, Maerki Baumann and GTN Europe among service providers.
  • Cash distributions are reinvested net of tax and reflected by a multiplier/rebase rather than paid as a direct SPY dividend.
  • SPYx holders do not receive SPY voting, meeting, information or liquidation rights, nor rights in S&P 500 constituents.
  • The listed 0.0945% annual cost is the ongoing expense of the underlying SPY fund, already reflected in SPY performance. Issuance/redemption fees are separately listed at up to 0.50%, before venue costs.
  • Direct purchases from the issuer require qualified/professional investor status. Existing holders have a separate redemption route, subject to issuer onboarding, KYC/AML, wallet whitelisting and applicable eligibility and jurisdiction rules. The U.S. Persons exclusion is a legal classification, not merely a citizenship test; partners may impose narrower access rules.
  • Documentation says tokens lack technical transfer restrictions, but securities law and partner eligibility still apply.
  • EVM roles can mint, burn, pause, enforce sanctions, update multipliers and upgrade implementation contracts.
  • Collateral enforcement and net proceeds, rather than a direct ETF claim, define creditor recovery; shortfalls remain possible.
  • Backed is unaffiliated with State Street, and S&P Dow Jones Indices does not sponsor or endorse SPYx.

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Frequently asked questions

Is SPYx the S&P 500?

No. It is a Jersey tracker certificate referencing SPY, and SPY tracks the index. The legal claim is against the certificate issuer.

Do holders own SPY shares?

No direct registered or beneficial SPY shareholder status is granted. SPY serves as collateral/reference exposure under the certificate terms.

How are dividends handled?

Cash received on SPY is reinvested after tax and reflected through a product multiplier or EVM rebase.

Can anyone mint or redeem?

Direct purchases from the issuer require qualified/professional investor status. Existing holders have a separate redemption route, subject to issuer onboarding, KYC/AML, wallet whitelisting and applicable eligibility and jurisdiction rules. The U.S. Persons exclusion is a legal classification, not merely a citizenship test; partners may impose narrower access rules.

Which contracts are canonical?

The official product records EVM 0x90a2...dd48 and Solana XsoC...DF2W. Verify every other network against current issuer material.

Can administrators freeze or change SPYx?

The EVM architecture has pause, sanctions, mint/burn, multiplier and proxy-upgrade roles. These support operations and compliance but create administrator dependence.

Is one token always one SPY share?

Exposure is described as 1:1 collateralized, but multipliers, fees, taxes and corporate actions mean raw token count is not a timeless one-token/one-share promise.

What happens if the issuer fails?

Certificate holders depend on allocated collateral and security-agent enforcement. Realization costs and shortfalls can reduce recovery, and holders are not direct SPY owners.

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