Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Valuation Risk combines aspects of data management, financial engineering and modelling and uncertainties related to the changing conditions of financial markets. Valuation Risks have a direct impact on internal and regulatory compliance, counterparty exposure and performance management. Recently, valuation risks have led to reputational risks; potentially impacting credit ratings, funding costs and the management structures of financial institutions. Valuation risks concern each stage of the transaction processing and investment management chain. From front office, to back office, distribution, asset management, private wealth and advisory services; transparency, integrity and reliability of valuations have become critical. Moreover, issues associated with valuation risks go beyond the firm itself.