Nomura Holdings Inc. is expected to report a group net loss of around ¥300 billion for October-December due to the global financial crisis, sources said Sunday.

It would be Nomura's biggest quarterly loss since the top brokerage started releasing quarterly earnings results based on U.S. accounting standards in April-June 2001.

Nomura is likely to post a group net loss for the business year that ends March 31, its second consecutive year in the red, with net losses in the April-December period projected to top ¥400 billion, the sources said.

Nomura suffered from slumping stock and bond trading in the October-December period as well as from evaluation losses on securities holdings, the sources said.

Sales of investment trust and other financial products to individual investors were sluggish during the period, they said.

The brokerage is expected to book around ¥200 billion in costs related to its purchase of Lehman Brothers Holdings Inc.'s operations in Europe, the Middle East and the Asia-Pacific region, according to the sources.

The October-December data will be announced Tuesday.