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About Market Transparency

The Market Transparency API provides access to trading data and other information that facilitates market transparency.

market transparency API
OTC Trade Data

OTC trading data for each ATS/firm with trade reporting obligations under FINRA rules.

OTC Threshold

OTC Regulation SHO and Rule 4320 Threshold Securities.

Equity Short Interest

OTC equity short positions reported by FINRA member firms.

Get Started

You can explore our APIs using test data before you commit to a full implementation. It's an easy process that begins with requesting an API Key.