UKTBL, issued by Spiko Finance (Spiko SAS), is a tokenized money market fund share that tracks UK T-Bills Money Market Fund, recorded onchain via a fully tokenized UCITS share registry [S1][S2].

The token gives a tokenholder economic exposure to UK T-Bills Money Market Fund (UKTBL), a regulated UCITS fund investing in short-term government Treasury Bills. The fund is accumulating and total-return, so interest accrues daily into the share NAV rather than rebasing token balances, and value accretes per share [S2]. The tokenholder bears a management fee of 0.25 percent per year, deducted daily on a prorated basis, with no entry, exit, transaction, or account-holding fees [S2][S1].

Spiko Finance is a simplified joint-stock company registered in Paris, France, and is a MiFID-authorized investment firm regulated by the French ACPR, while the funds are AMF-supervised money market UCITS managed by Twenty First Capital with CACEIS Bank as depositary [S3][S1][S2]. Each token legally represents a regulated UCITS fund share, not e-money or a stablecoin [S2]. Onboarding requires KYC and AML verification, and only allowlisted addresses may hold or receive tokens under a configurable compliance policy [S4][S5]. Daily liquidity is contractually guaranteed, with deposits and withdrawals processed daily in fiat or stablecoins; client cash is held by CACEIS, never by Spiko [S1][S2].

Tokens are ERC-20 based, with ERC-1363, ERC-2612, and ERC-2771 extensions, issued across Ethereum, Polygon, Arbitrum, Base, Starknet, and Stellar [S5][S6][S7]. A daily-operator role mints tokens to allowlisted addresses; redemptions are batched daily and tokens burned when transfers initiate [S5]. NAV is calculated daily by CACEIS, submitted to the AMF, and published onchain via a Chainlink oracle, while EURCV and USDCV stablecoins provide settlement [S5][S4][S8][S9].

<Sources
  retrievedAt="2026-06-21"
  items={[
    { id: "S1", url: "https://www.spiko.io/blog/spiko-launches-the-worlds-first-tokenized-money-market-funds" },
    { id: "S2", url: "https://www.spiko.io/spiko-treasury-bills-euro" },
    { id: "S3", url: "https://www.spiko.io/" },
    { id: "S4", url: "https://www.spiko.io/blog/spiko-chainlink-ccip" },
    { id: "S5", url: "https://tech.spiko.io/posts/spiko-smart-contracts/" },
    { id: "S6", url: "https://www.spiko.io/use-cases/web3" },
    { id: "S7", url: "https://tech.spiko.io/posts/stellar-integration/" },
    { id: "S8", url: "https://www.spiko.io/blog/spiko-in-collaboration-with-caceis-integrates-chainlink-infrastructure-to-bring-nav-data-onchain" },
    { id: "S9", url: "https://www.spiko.io/blog/spiko-morpho-sg-forge" },
  ]}
/>


# Circulating asset market cap methodology

## 1. Overview

Circulating asset market cap measures the total value that has been tokenized onchain for a specific asset. It is calculated by multiplying the circulating supply of the asset by its end-of-day market price. For stablecoins, this metric represents the total outstanding supply; for tokenized funds, it reflects the onchain assets under management (AUM); and for tokenized stocks, it measures the total supply of shares issued onchain.

## 2. Data sources

- **EVM chain events**: ERC-20 `Transfer` events, covering Ethereum, Arbitrum, Base, Polygon, Optimism, and others
- **Solana instructions**: SPL token `Mint` and `Burn` instructions
- **Other blockchain data**: Issuance and redemption events from Aptos, Near, Polkadot Asset Hub, and Stellar
- **Asset metadata**: Token addresses and decimal precision
- **External data**: End-of-day price feeds

## 3. Step-by-step calculation

### Component A: Identification of supply changes

- **Purpose**: Identify all onchain events that increase or decrease the total supply of an asset
- **Logic**: On EVM-compatible chains, ERC-20 `Transfer` events are parsed to identify mints (where the sender is the zero address) and burns (where the recipient is the zero address). On Solana, SPL token `Mint` and `Burn` instructions are retrieved. On other chains, such as Aptos or Polkadot Asset Hub, equivalent issuance and destruction events are identified from the respective asset programs or pallets.
- **Key fields**: `amount` (quantity of tokens), `token_address` (unique asset identifier), `timestamp` (time of the event)

### Component B: Normalization and daily supply aggregation

- **Purpose**: Convert raw event data into a continuous daily circulating supply time series
- **Logic**: Raw token amounts are normalized by decimal precision retrieved from asset metadata. The daily circulating supply is determined by calculating the cumulative sum of all identified mint and burn events for each asset. For days where no onchain activity occurs, the supply value is filled with the last known value to ensure a continuous daily record.
- **Key fields**: `amount` (normalized quantity), `timestamp` (truncated to daily grain)

### Component C: Final market cap calculation

- **Purpose**: Combine supply data with market prices to determine the total USD value
- **Logic**: The daily circulating supply is multiplied by the end-of-day market price sourced from market data providers. Data is aggregated across all supported chains to provide a comprehensive view of the asset's onchain presence. The final USD conversion is applied: `amount_usd = amount × price_usd`.
- **Key fields**: `price_usd` (end-of-day market price), `amount_usd` (final circulating market cap)

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

Tokenized asset value / AUM (assets under management) — price times circulating supply.

Circulating asset market cap

Tokenized funds

The platform operates by pooling user deposits into regulated money market funds that exclusively invest in Treasury Bills from major Eurozone countries and the U.S. Federal Government, with daily interest payments and instant withdrawal capabilities. Spiko generates revenue through management fees while maintaining regulatory compliance and institutional-grade custody, offering API integrations for businesses and Web3 protocols seeking to provide risk-free yield on stablecoins and fiat currencies. The minimum initial deposit is €1,000 or $1,000 USD, with subsequent transactions starting from €1 or $1 USD.

Spiko offers daily interest-earning accounts in EUR, USD, and GBP that invest exclusively in government Treasury Bills, providing risk-free returns with complete liquidity and no lock-up periods. The platform serves various use cases from startup treasury management to Web3 applications, offering both traditional fiat access and on-chain integration for blockchain-based yield generation. Their products include API access for fintech integration and Web3 solutions that enable on-chain access to traditional money market fund returns.

Spiko is a regulated financial technology platform that provides seamless access to risk-free interest rates through money market funds backed by Treasury Bills. The company operates under EU law with French Financial Markets Authority (AMF) approval and custody services provided by Crédit Agricole.

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Real-world asset (RWA) issuers

Spiko

Spiko UK T-Bills Money Market Fund (UKTBL) is a tokenized fund share issued by Spiko through SPIKO SICAV and managed by Twenty First Capital.

Each token is a direct claim on the issuer.

The fund is open-ended, invests in government debt and money market instruments in the United Kingdom, and charges a 0.25% annual management fee.

Its assets sit with CACEIS and HSBC, administered by CACEIS, with PwC as auditor.

Retail investors can subscribe and redeem in GBP, with a GBP 1 minimum, and holders have a right to redeem at net asset value.

SPIKO SICAV is incorporated in France, is a UCITS fund, and is supervised by the French Financial Markets Authority.

UKTBL has been issued on public blockchains since November 2024 and is native to 7 networks, including Stellar, Ethereum, Polygon, Arbitrum One, Starknet, and Base.

Spiko UK T-Bills Money Market FundUKTBL