This study examines the value-relevance of banks' derivative disclosures under Statements of Financial Accounting Standards (SFAS) Nos. 119 and 133. Using the complete time-series of SFAS No. 119 disaggregated notional value disclosures and the most recently available SFAS No. 133 fair value data, this study investigates whether such expanded disclosures provide incremental information content beyond earnings and book value. Our results indicate that banks' notional principal amount disclosures are value-relevant, and that this evidence of incremental information content is robust to the inclusion of recently available fair value data and alternative model specifications. Copyright Springer Science + Business Media, Inc. 2005derivatives, banks, information content,