Get the current index price for a specific market. The index price is the external reference price used for mark-to-market calculations, margin requirements, and settlement.

Index Price Sources:

• Chainlink Data Feeds: Real-time price data from Chainlink's decentralized oracle network
• Supported Assets: BTC, ETH, and ARB with dedicated price feeds for each market
• Real-time Updates: Prices are streamed continuously via WebSocket connections

Use Cases:

• Portfolio valuation and mark-to-market calculations
• Risk management and margin requirement calculations
• Strategy analysis and option pricing models
• Settlement price reference for options