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Trading Fundamentals

Options Chain

An options chain is a table displaying all available options contracts for a specific asset, organized by expiration date and strike price. It shows bid/ask prices, volume, open interest, and Greeks for both calls and puts.

Understanding the Concept

• Calls are typically listed on the left, puts on the right • Strike prices run vertically, usually centered around current stock price • Open interest shows how many contracts exist at each strike • Volume indicates today's trading activity at each strike

Real-World Example

Looking at Apple's options chain, you see the $175 calls expiring in two weeks have a bid of $2.50, ask of $2.55, volume of 15,000, and open interest of 45,000. The Greeks show delta of 0.45, theta of -0.08, and IV of 25%. This information helps you pick the right contract for your strategy.

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