For AI agents: a documentation index is available at the root level at /llms.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
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IntroductionAccount ManagementTradingAPI ReferenceWeb API v1.0 DocumentationFlex Web ServiceChangelog
IntroductionAccount ManagementTradingAPI ReferenceWeb API v1.0 DocumentationFlex Web ServiceChangelog
IBKR HomeIBKR CampusLog InOpen Account

Changelog

January 6, 2026
January 6, 2026

IBKR APIs | IBKR WebAPI | Web API Reference

Fundamental Data tags, including Dividend Amount, Dividend Yield %, Ex-Date, P/E, Market Capitalization, EPS, and Beta are deprecated and no longer available via API.

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