Registration No. 333-201935

Investment Company Act of 1940 File No. 811-23029

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_________________

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	X
Post-Effective Amendment No. 89	X

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940	X
Amendment No. 91	X
(Check Appropriate Box or Boxes)

_________________

PRINCIPAL EXCHANGE-TRADED FUNDS

(Exact Name of Registrant as Specified in Charter)

_________________

711 High Street

Des Moines, IA 50392

(Address of Principal Executive Offices)

(515) 235-1209

(Registrant’s Telephone Number, including Area Code)

_________________

Name and Address of Agent for Service:

Britney L. Schnathorst

Principal Financial Group

Des Moines, IA 50392

_________________

Approximate Date of Proposed Public Offering: immediately

It is proposed that this filing will become effective (check appropriate box)

XX    immediately upon filing pursuant to paragraph (b)

____    on (date) pursuant to paragraph (b)

____    60 days after filing pursuant to paragraph (a)

____    on (date) pursuant to paragraph (a)

____    75 days after filing pursuant to paragraph (a)(2)

____    on (date) pursuant to paragraph (a)(2) of Rule 485

If appropriate, check the following box:

____ This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

Title of Securities Being Registered: Shares of Principal International Multi-Factor Core Index ETF, Principal U.S. Large-Cap Multi-Factor Core Index ETF, and Principal U.S. Small-MidCap Multi-Factor Core Index ETF.

EXPLANATORY NOTE

This filing relates to the Registrant’s prospectus dated July 6, 2019 for shares of Principal International Multi-Factor Core Index ETF, Principal U.S. Large-Cap Multi-Factor Core Index ETF, and Principal U.S. Small-MidCap Multi-Factor Core Index ETFs, which were included in 1933 Act Post-Effective Amendment No. 88 (as filed on July 3, 2019, SEC Accession No. 0001572661-19-000155), and is filed for the purpose of submitting interactive data files.

SIGNATURES
Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Fund certifies that it meets all of the requirements for effectiveness of this registration statement under rule 485(b) under the Securities Act and  has duly caused this registration statement to be signed on its behalf by the undersigned, duly authorized, in the city of Des Moines and State of Iowa, on the 11th day of July, 2019.
	Principal Exchange-Traded Funds
	(Registrant)
	/s/ M. J. Beer _____________________________________ M. J. Beer Director, President and Chief Executive Officer
Attest: /s/ Beth Wilson ______________________________________ Beth Wilson Vice President and Secretary

Pursuant to the requirements of the Securities Act of 1933, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.
Signature	Title	Date
/s/ M. J. Beer __________________________ M. J. Beer	Director, President and Chief Executive Officer (Principal Executive Officer)	July 11, 2019
/s/ T. W. Bollin __________________________ T. W. Bollin	Chief Financial Officer (Principal Financial Officer)	July 11, 2019
/s/ S. L. Reece __________________________ S. L. Reece	Vice President and Controller (Controller)	July 11, 2019
(E. Ballantine)* __________________________ E. Ballantine	Trustee	July 11, 2019
(L. T. Barnes)* __________________________ L. T. Barnes	Trustee	July 11, 2019
(C. Damos)* __________________________ C. Damos	Trustee	July 11, 2019
(T. M. Dunbar)* __________________________ T. M. Dunbar	Trustee	July 11, 2019
(M. A. Grimmett)* __________________________ M. A. Grimmett	Trustee	July 11, 2019
(P. G. Halter)* __________________________ P. G. Halter	Trustee	July 11, 2019
(F. S. Hirsch)* __________________________ F. S. Hirsch	Trustee	July 11, 2019
(T. Huang)* __________________________ T. Huang	Trustee	July 11, 2019
(K. McMillan)* __________________________ K. McMillan	Trustee	July 11, 2019
(E. A. Nickels)* __________________________ E. A. Nickels	Trustee	July 11, 2019
(M. M. VanDeWeghe)* __________________________ M. M. VanDeWeghe	Trustee	July 11, 2019
*Pursuant to Power of Attorney appointing M. J. Beer Previously Filed as Ex-99(j)(ii) on February 6, 2015 (Accession No. 0001572661-15-000008), for E. A. Nickels on October 27, 2015 (Accession No. 0001572661-15-000049), for. P. G. Halter on January 19, 2018 (Accession No. 0001572661-18-000005), for M. M. VanDeWeghe on 08/31/2018 (Accession No. 0001572661-18-000128), and for T. M. Dunbar on 07/03/2019 (Accession No. 0001572661-19-000155).

Exhibit No.Exhibits

Ex-101.INS    XBRL Instance Document

Ex-101.SCH    XBRL Taxonomy Extension Schema Document

Ex-101.CAL    XBRL Taxonomy Extension Calculations Linkbase Document

Ex-101.DEF    XBRL Taxonomy Extension Definition Linkbase Document

Ex-101.LAB    XBRL Taxonomy Extension Label Linkbase Document

Ex-101.PRE    XBRL Taxonomy Extension Presentation Linkbase Document