SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

FORM 8-K
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(D) OF THE
SECURITIES EXCHANGE ACT OF 1934
Date of Report: OCTOBER 19, 2006
(Date of earliest event reported)
PRINCIPAL FINANCIAL GROUP, INC.
 (Exact name of registrant as specified in its charter)

      DELAWARE                         1-16725                42-1520346
(State or other jurisdiction    (Commission file number)   (I.R.S. Employer
   of incorporation)                                     Identification Number)

711 HIGH STREET, DES MOINES, IOWA 50392
 (Address of principal executive offices)
(515) 247-5111
(Registrant's telephone number, including area code)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

ITEM 7.01 REGULATION FD DISCLOSURE
This report is filed quarterly to disclose Principal Global Investors' and Principal International's assets under management, prior to the availability of Principal Financial Group, Inc's (The Principal(R)) quarterly earnings release. As of September 30, 2006, the assets under management by asset manager were $159.9 billion for Principal Global Investors, and $16.6 billion for Principal International and its subsidiaries and affiliates.
Principal Global Investors is the asset management arm of The Principal. The AUM presented above includes the asset management operations of Principal Global Investors, LLC, and its U.S. and foreign advisory affilites.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
PRINCIPAL FINANCIAL GROUP, INC.

                        By:     /S/ THOMAS J. GRAF
                                -----------------------------------------------
                        Name:   Thomas J. Graf
                        Title:  Senior Vice President - Investor Relations

Date:    October 19, 2006	

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