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SPDR S&P 500 ETF (Ondo Tokenized) (SPYon) API and Price Oracle

SPDR S&P 500 ETF (Ondo Tokenized) icon

SPDR S&P 500 ETF (Ondo Tokenized)

SPYon
$ 
Information
For informational use only; request a custom oracle/API for production below.

General information

Contract address
Smart contract address of the asset
More info
0xfedc...2c08
Network
Blockchain network where the asset is deployed
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ethereum
Methodology
Pricing methodology used to determine the price of the token in USD. By default, all price feeds on the DIA App are calculated with a MAIR methodology. This parameter is customisable.Learn more about methodologies.
More info
MAIR
Update frequency
120 seconds is the default update frequency. This parameter is customisable.Learn more about oracle updates.
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120s
Next update
24h Volume
The total volume captured by DIA across all the integrated sources.
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Source
Volume 24h
Trades 24h
Pairs

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Token information

What is SPDR S&P 500 ETF (Ondo Tokenized) (SPYon)?

SPYon is a tokenized representation of the SPDR S&P 500 ETF (SPY), issued by Ondo Finance on the Ethereum blockchain. It belongs to the category of wrapped or tokenized real-world assets, specifically equity ETF tokens. SPYon allows blockchain users to hold exposure to the S&P 500 index without traditional brokerage accounts. Ondo Finance, founded in 2021, specializes in tokenizing institutional-grade assets for decentralized finance.

The SPDR S&P 500 ETF (Ondo Tokenized) price API returns real-time SPY price data sourced from aggregated trades across multiple exchanges. A developer integrates this endpoint to fetch current market prices for the tokenized ETF, enabling smart contracts or applications to make pricing decisions, execute conditional logic, or display up-to-date valuations without manually querying individual exchange APIs.

DIA provides the SPDR S&P 500 ETF (Ondo Tokenized) price API by aggregating trade data across 100+ exchanges. The free endpoint available on this page supports testing and evaluation. For production deployments or custom requirements, DIA builds dedicated feeds configurable by data sources, pricing methodology, and update frequency. Developers can request production-grade implementations through DIA's Discord or Telegram channels.

DIA publishes a free SPDR S&P 500 ETF (Ondo Tokenized) price API endpoint on this asset page. The endpoint is available for developers to test and evaluate at no cost, but it is not intended for production use. For production deployments or customized SPDR S&P 500 ETF (Ondo Tokenized) feeds, DIA builds dedicated oracles configured by data sources, pricing methodology, and update frequency. Custom feed requests are submitted via DIA's Discord or Telegram channels.

A blockchain price oracle is an external data provider that supplies verified information from off-chain sources to smart contracts operating on-chain. Oracles bridge the gap between real-world market data and decentralized applications that require trustworthy price inputs.

DIA can deploy a price oracle for SPDR S&P 500 ETF (Ondo Tokenized) on any supported blockchain, delivering on-chain SPY price data that smart contracts can consume. DIA's oracle infrastructure runs on Lasernet, DIA's Ethereum layer-2 rollup, which enables each feed to be independently verifiable by applications and users.

For production deployments or custom requirements, DIA builds dedicated price feeds configurable by data sources, pricing methodology, and update frequency. Requests are made through DIA's Discord or Telegram channels.

SPDR S&P 500 ETF (Ondo Tokenized) price is calculated by aggregating individual trade data from on-chain and off-chain sources across multiple exchanges, rather than relying on a single exchange or liquidity pool. This aggregation approach captures pricing information from the broader market for the underlying SPY ETF.

DIA's methodology pulls trades from 100+ exchanges covering thousands of assets. The sources used and the pricing logic applied are transparent and documented. For production deployments, DIA configures dedicated feeds to specify which data sources to include, how to weight them, and update frequency, tailored to the requirements of the application using the price feed.

SPDR S&P 500 ETF (Ondo Tokenized), or SPYon, is a tokenized representation of the traditional S&P 500 equity index ETF, bridging traditional finance with blockchain infrastructure. Developers building with SPYon price feeds can create several focused applications:

Collateralized lending protocols where SPYon holders deposit tokenized S&P 500 exposure as collateral to borrow stablecoins or other assets.

Cross-chain settlement layers that use verified SPYon pricing to execute trades between blockchain-native assets and equity-linked positions.

Automated portfolio rebalancing tools that consume SPYon price data to maintain target allocations between tokenized equities and cryptocurrency holdings.

Each application relies on accurate, verifiable pricing from a blockchain price oracle to ensure fair valuations and prevent liquidation errors.

DIA aggregates individual trade data from 100+ exchanges to build price feeds for tokenized real-world assets like SPDR S&P 500 ETF (Ondo Tokenized). Developers can inspect DIA's sourcing methodology and adjust which exchanges, pricing logic, and update frequencies apply to their SPDR S&P 500 ETF (Ondo Tokenized) feed, ensuring the oracle matches specific application requirements.

DIA deploys across 60+ blockchains, allowing teams to use the same feed architecture regardless of chain. Each feed runs on Lasernet, DIA's Ethereum layer-2, making price data independently verifiable on-chain.

To evaluate DIA for SPDR S&P 500 ETF (Ondo Tokenized): test the free API endpoint available on this page. For production use or custom configuration, request a dedicated feed through DIA's Discord or Telegram.

Why use DIA data feeds and oracles?

Transparent

DIA provides full insight on the oracle’s data journey as well monitoring tools to track feeds in real-time.

Customisable

Oracles can be tailored to any use case in terms of data sources, methodologies and update mechanisms and much more.

Broadest coverage

DIA provides price oracles for 3,000+ cryptocurrencies: from blue-chip tokens to long-tail assets.