Implementation of Public Company Accounting Oversight Board Auditing Standards No. 2 on internal control and No. 3 on documentation has delayed audit completion. However, due to market demand for timely disclosures, most firms maintain the same preliminary earnings release date even though the audit may not be complete as of that date. Results indicate revisions to preliminary announcements when filing the 10-K report would have been 35% lower during 2005 if the historical frequency of issuing earnings releases after the audit report date had not changed. Additionally, stock market reaction to impending revisions suggests lower reliability of preliminary earnings.

We examine the role of newswires in identifying and conveying market-moving information in periodic SEC reports to capital market participants. Using data on Dow Jones Newswires, we find that newswires are more likely to send alerts on firms that do not release preliminary earnings, have credit ratings, are included in major market indices, have litigation exposure, or report losses. Reflective of the market’s focus on certain key events, firms with a nonstandard audit opinion, in the process of delisting, reporting unusual accounting items, or raising equity capital also receive alerts. Moreover, not only do we find significant price and volume reactions to the alerts at the daily level, but also we document immediate intra-day market activity triggered by the alerts, whereas we detect no similar reaction for SEC filings that trigger the alerts. Additional analysis suggests that the intra-day reaction is not driven by noise trading.