The Nasdaq Stock Market Inc. has acquired the 50% of the Nasdaq Insurance Agency it didn’t otherwise own.

Nasdaq announced today it has completed the acquisition of the 50% ownership interest in the firm, which is a full-service corporate insurance broker specializing in directors and officers liability insurance, from a wholly owned subsidiary of American International Group Inc.

The deal makes the Nasdaq Insurance Agency LLC a wholly owned subsidiary of the Nasdaq Stock Market. The transaction was effective on January 1. Purchase price and terms of the agreement were not disclosed.

Formed in 2000, the agency works with current and future Nasdaq-listed companies.