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Sviluppo TradingBot

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DesktopBot/Documents/Alpaca/historical-option-data.md
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# Historical Option Data
This API provides historical market data for options. Check the [API Reference](https://docs.alpaca.markets/reference/optionbars) for the detailed descriptions of all the endpoints.
> 🚧 Data availability
>
> Currently we only offer historical option data since February 2024.
# Data sources
Similarly to stocks, Alpaca offers two different data sources for options:
| Source | Description |
| :------------------------------------------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Indicative** | Indicative Pricing Feed is a free derivative of the original OPRA feed: the quotes are not actual OPRA quotes, they’re just indicative derivatives. The trades are also derivatives and they’re delayed by 15 minutes. |
| **OPRA (Options Price Reporting Authority)** | OPRA is the consolidated BBO feed of OPRA. [OPRA Plan](https://www.opraplan.com/document-library) defines the BBO as the highest bid and lowest offer for a series of options available in one or more of the options markets maintained by the parties. OPRA feed is only available to subscribed users. |