securities exchange

Financial shares are mixed as regulators eye several big sector names for possible manipulation of the LIBOR, which is used to set adjustable interest rates on a wide variety of loans. In mid-day news, the Securities and Exchange

Syron received a so-called Wells notice from the SEC. He is the most recent executive in the government's examination of the two government-controlled companies.

The SEC is looking into how Freddie and Fannie publicly disclosed their exposure to risky loans and whether those depictions were inaccurate.

Freddie Mac's former chief executive Richard F. Syron may face a civil action as the government ramps up an investigation of disclosure practices at the company and Fannie Mae, according to people familiar with the matter.