Why did CME Group Inc. change its auditor?

CME Group Inc. changed its auditor as the Board of Directors, on the recommendation of its Audit Committee, decided to dismiss Arthur Andersen LLP. This change was made without any reported disagreements on accounting or auditing matters.

Who is CME Group Inc.'s new auditor?

Ernst & Young LLP has been engaged as CME Group Inc.'s new independent accountants to audit the company's consolidated financial statements for the fiscal year ending December 31, 2002.

Were there any disputes with the outgoing auditor, Arthur Andersen?

No, the filing explicitly states that there were no disagreements between CME Group Inc. and Arthur Andersen on any matter of accounting principles, financial statement disclosure, or auditing scope or procedure.

What is the significance of this auditor change for investors?

For investors, this change primarily signifies a transition in the audit firm responsible for reviewing CME Group Inc.'s financial statements. The lack of disagreements with the former auditor, Arthur Andersen, suggests a smooth transition without underlying accounting issues being a factor in the dismissal. The engagement of a reputable firm like Ernst & Young provides continued assurance on financial reporting.

CME 8-K SEC Disclosure — May 17, 2002

Summary

CME Group Inc. (CME) filed an 8-K report on May 17, 2002, primarily announcing a change in its independent auditors. The company's Board of Directors, following a recommendation from its Audit Committee, dismissed Arthur Andersen LLP as its auditor, effective May 15, 2002. This decision was made without any reported disagreements on accounting principles, financial statement disclosures, or auditing procedures between CME Holdings and Arthur Andersen.

Key Highlights

1CME Group Inc. has dismissed Arthur Andersen LLP as its independent auditor.
2The dismissal was effective May 15, 2002.
3The decision was made by the Board of Directors upon the recommendation of the Audit Committee.
4There were no disagreements between CME Group Inc. and Arthur Andersen on accounting or auditing matters.
5Ernst & Young LLP has been engaged as the new independent auditor for the fiscal year ending December 31, 2002.
6No reportable events (as defined by Regulation S-K) occurred with the previous auditor.
7CME Group Inc. did not consult with Ernst & Young LLP regarding any prior matters before their engagement.

CME GROUP INC. 8-K Report (May 17, 2002)

Summary

Key Highlights

Frequently Asked Questions