NEW YORK - J.P. Morgan & Co.'s decision last week to start accounting for all of its investment securities at market value moves a controversial issue to center stage.

The giant New York bank announced Thursday that it would consider its entire $22.58 billion investment portfolio as being "held for sale." That means it will record all its securities at the lower of historical cost or market value.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.