In 2002, GAO reported that the number of restatement announcements due to financial reporting fraud and/or accounting errors grew significantly between January 1997 and June 2002, negatively impacting the restating companies’ market capitalization by billions of dollars. GAO was asked to update key aspects of its 2002 report (GAO-03-138). This report discusses (1) the number of, reasons for, and other trends in restatements; (2) the impact of restatement announcements on the restating companies’ stock prices and what is known about investors’ confidence in U.S. capital markets; and (3) regulatory enforcement actions involving accounting- and audit-related issues. To address these issues, GAO collected restatement announcements meeting GAO’s criteria, calculated and analyzed the impact on company stock prices, obtained input from researchers, and analyzed selected regulatory enforcement actions. While the number of public companies announcing financial restatements from 2002 through September 2005 rose from 3.7 percent to 6.8 percent, restatement announcements identified grew about 67 percent over this period. Industry observers noted that increased restatements were an expected byproduct of the greater focus on the quality of financial reporting by company management, audit committees, external auditors, and regulators. GAO also observed the following trends: (1) cost- or expense- related reasons accounted for 35 percent of the restatements, including lease accounting issues, followed in frequency by revenue recognition issues; and (2) most restatements (58 percent) were prompted by an internal party such as management or internal auditors. In the wake of increased restatements, SEC standardized disclosure requirements by requiring companies to file a specific item on the Form 8-K when a company’s previously reported financials should no longer be relied upon. However, between August 2004- September 2005, about 17 percent of the companies GAO identified as restating did not appear to file the proper disclosure when they announced their intention to restate. These companies continued to announce intentions to restate previous financial statements results in a variety of other formats. Public confidence in the reliability of financial reporting is critical to the effective functioning of the securities markets, and various federal laws and entities help ensure that the information provided meets such standards. Federal securities laws help to protect the investing public by requiring public companies to disclose financial and other information. SEC was established by the Securities Exchange Act of 1934 (the Exchange Act) to operationalize and enforce securities laws and oversee the integrity and stability of the market for publicly traded securities. SEC is the primary federal agency involved in accounting requirements for publicly traded companies. Under Section 108 of the Sarbanes-Oxley Act, SEC has recognized the accounting standards set by the Financial Accounting Standards Board (FASB)—generally accepted accounting principles (GAAP)—as ”generally accepted” for the purposes of the federal securities laws. SEC reviews and comments on registrant filings and issues interpretive guidance and staff accounting bulletins on accounting matters. To issue securities for trading on an exchange, a public company must register the securities offering with SEC, and to register, the company must meet requirements set by the Exchange Act, as amended, including the periodic disclosure of financial and other information important to investors. The regulatory structure of U.S. markets is premised on a concept of corporate governance that makes officers and directors of a public company responsible for ensuring that the company’s financial statements fully and accurately describe its financial condition and the results of its activities. Company financial information is publicly disclosed in financial statements that are to be prepared in accordance with standards set by FASB and guidance issued by SEC. The integrity of these financial statements is essential if they are to be useful to investors and other stakeholders. In addition to the requirements and standards previously discussed, the securities acts and subsequent law set requirements for annual audits of the financial statements by registered public accounting firms to help ensure the integrity of financial statements. The applicable standards under these laws require that auditors plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes an examination, on a test basis, of evidence supporting the amounts and disclosures in the financial statements; an assessment of the accounting principles used and significant estimates made by management; and an evaluation of the overall financial statement presentation. The purpose of the auditor’s report is to provide reasonable assurance about whether the financial statements present fairly, in all material respects, the financial position of the company, the results of its operations, and its cash flows, in conformity with U.S. GAAP. The Sarbanes-Oxley Act reinforces principles and strengthens requirements (established in previous law), including measures for improving the accuracy, reliability, and transparency of corporate financial reporting. Specifically, Section 302 requires that the chief executive officer (CEO) and chief financial officer (CFO) must certify for each annual and quarterly report filed with SEC that they have reviewed the report; the report does not contain untrue statements or omissions of a material fact; and the financial information in the report is fairly presented. In addition, Section 404 requires company management to annually (1) assess its internal control over financial reporting and report the results to SEC and (2) have a registered public accounting firm attest to and report on management’s assessment of effectiveness of internal control over financial reporting. While larger public companies have implemented Section 404, most companies with less than $75 million in public float— about 60 percent of all public companies—have yet to complete this process. (See app. IV for further discussion of the act.) To oversee the auditing of publicly traded companies, the Sarbanes-Oxley Act established PCAOB, a private-sector nonprofit organization. Subject to SEC oversight, PCAOB sets standards for, registers, and inspects the independent public accounting firms that audit public companies and has the authority to conduct investigations and disciplinary proceedings and impose sanctions for violations of law or PCAOB rules and standards. Specifically, Section 105 of the Sarbanes-Oxley Act granted PCAOB broad investigative and disciplinary authority over registered public accounting firms and persons associated with such firms. In May 2004, SEC approved PCAOB’s rules implementing this authority. According to the rules, PCAOB staff may conduct investigations concerning any acts or practices, or omissions to act, by registered public accounting firms and persons associated with such firms, or both, that may violate any provision of the act, PCAOB rules, the provisions of the securities laws relating to the preparation and issuance of audit reports and the obligations and liabilities of accountants with respect thereto, including SEC rules issued under the act, or professional standards. Furthermore, PCAOB’s rules require registered public accounting firms and their associated persons to cooperate with PCAOB investigations, including producing documents and providing testimony. The rules also permit PCAOB to seek information from other persons, including clients of registered firms. See figure 1 for the existing system of corporate governance and accounting oversight structures. Although the number of public companies restating their publicly reported financial information due to financial reporting fraud and/or accounting errors remained a relatively small percentage of all publicly listed companies, the number of restatements has grown since 2002. For example, 314 companies announced restatements in 2002 and 523 announced restatements in 2005 (through September). In addition, of the 1,390 announced restatements we identified, the percentage of large companies announcing restatements has continued to grow since 2002.While large and small companies restate their financial results for varying reasons, change in cost- or expense-related items, which includes lease accounting issues, was the most frequently cited reason for restating. While both internal and external parties could prompt restatements, internal parties such as company management or internal auditors prompted the majority of restatement announcements. Finally, we found that, despite SEC’s efforts to create a more transparent mechanism for disclosing restatements through revisions to Form 8-K, some companies had not properly filed such disclosures and continued to announce intentions to restate previous financial statements results in a variety of other formats. The number of annual announcements of financial restatements generally increased, from 314 in 2002 to 523 in 2005 (through September)—an increase of approximately 67 percent (see fig. 2). This constituted a nearly five-fold increase from 92 in 1997 to 523 in 2005. Furthermore, from July 2002 through September 2005, a total of 1,121 public companies made 1,390 restatement announcements. Some industry observers noted that several factors may have prompted more U.S. publicly traded companies to restate previously reported financial results, including (1) the financial reporting requirements of the Sarbanes-Oxley Act, especially the certification of financial reports required by Section 302 and the internal controls provisions of Section 404; (2) increased scrutiny from the newly formed PCAOB through its inspections of registered public accounting firms; and (3) increased staffing and review by SEC. As the number of restatement announcements rose, the numbers of listed companies making the announcements increased as well. While the average number of companies listed on NYSE, Nasdaq, and Amex decreased about 10 percent from 7,144 in 2002 to 6,473 in 2005, the number of listed companies restating their financial results increased from 265 in 2002 to 439 in 2005 (through September), representing about a 67 percent increase (see table 1). On a yearly basis, the proportion of listed companies restating grew from 3.7 percent in 2002 to 6.8 percent in 2005. Over the period of January 1, 2002, through September 30, 2005, the total number of restating companies (1,084) represents 16 percent of the average number of listed companies from 2002 to 2005, as compared to almost 8 percent during the 1997-2001 period. A number of other researchers also found that restatements had increased since calendar year 2002. The researchers used somewhat different search methodologies to identify companies that restate previously reported financial information and included slightly different criteria for inclusion but arrived at similar conclusions.