Unrealized losses refer to investments or assets that have decreased in value but have not been sold. It means that the losses have not become actual or realized losses because the investments or assets are still being kept. Full definition
At the same time, you also have a total unrealized loss of $ 15,000 from House B. On June 1, you decide to sell House B for $ 110,000. (mathstat.dal.ca)
It is possible that we will incur further unrealized losses in fiscal 2009 related to these securities. (sec.gov)
When I first looked at this, I though most of these must have been from unrealized losses on bonds, but to my surprise, they are mostly losses from affiliated company stocks, which must be valued at market price or net worth. (alephblog.com)