Options basics
Options basics
What each field in options data means, and how to get it from the API. For runnable code, see the guides.
Option Greeks explained: delta, gamma, theta, vega
The Greeks measure how sensitive an option's price is to each thing that moves it. We'll read them one by one off a real AAPL option chain.
What is implied volatility (IV)?
Implied volatility is the market's expectation of future price swings, backed out of the option's price. It's the standard way to tell whether an option is cheap or expensive.
US option symbols explained
Every US option contract has a unique symbol, such as O:AAPL261023C00345000. Once you can read it, you can build the symbol for any contract yourself.
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