I don't think they can book a revaluation as "income" https://www.investopedia.com/terms/o/one-time-item.asp What is a One-Time Item A one-time item is a gain, loss or expense on the income statement that is nonrecurring in nature and therefore not considered part of a company's ongoing business operations. In order to get a true gauge of a company's operating performance, one-time items are usually excluded by analysts and investors while evaluating a company. One-time items most often have a negative impact on earnings, but may occasionally have a positive impact. BREAKING DOWN One-Time Item One-time items are recorded under operating expenses or below the EBIT line and then identified by management as "one-time" in its discussion of financial results or supplemental material for investors. One-time items on the income statement may be self-explanatory or would be discussed by the company in a similar manner described above. Reporting one-time items separately is important to ensure the transparency of financial reporting. One-time items are exactly that — management does not expect them to occur again — so segregating these items explicitly on the income statement or in a discussion by management allows for a better assessment of the continuing income-generating capacity of the business. Management will flag certain one-time items, but whether an analyst or investor believes they are truly one-time and not, perhaps, once-in-a-while, is a different matter. Of course I know all this. ;-) But, this is TRW and we have a minority stake, making it a bit more complicated.