We find, as predicted, that upward revaluations of fixed assets by UK firms are significantly positively related to changes in future performance, measured by operating income and cash from operations, indicating revaluations reflect asset value changes. Current year revaluations (revaluation balances) also are significantly positively related to annual returns (prices). Relations between revaluations and future performance and prices are weaker for higher debt-to-equity ratio firms, indicating motivation affects how revaluations reflect asset value changes. The relations also are weaker for cross-listed firms and in a more volatile economic time period. Our inferences are robust to controlling for firms’ acquisition activity.