POWER OF ATTORNEY

              Know all by these presents, that the undersigned hereby
constitutes and appoints each of John A. Zecca, Jeffrey S. Davis, Alex Kogan and
Erika Moore (and any other employee of Nasdaq, Inc. (the "Company") or one of
its direct or indirect wholly-owned subsidiaries designated in writing by one of
the attorneys-in-fact), each acting individually, the undersigned's true and
lawful attorney in fact to:

(1)         prepare, execute in the undersigned's name and on the undersigned's
behalf, and submit to the U.S. Securities and Exchange Commission (the "SEC") a
Form ID, including amendments thereto, and any other documents necessary or
appropriate to obtain codes and passwords enabling the undersigned to make
electronic filings with the SEC of reports required by Section 16(a) of the
Securities Exchange Act of 1934 or any rule or regulation of the SEC;

(2)         execute for and on behalf of the undersigned, in the undersigned's
capacity as an officer and/or director of the Company, Forms 3, 4, and 5 in
accordance with Section 16(a) of the Securities Exchange Act of 1934 and the
rules thereunder;

(3)         do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such Form 3, 4,
or 5, complete and execute any amendment or amendments thereto, and timely file
such form with the SEC and any stock exchange or similar authority; and

(4)         take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney in fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney in fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney in fact may approve in such
attorney in fact's discretion.

              The undersigned hereby grants to such attorney in fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney in fact, or such attorney in fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted.  The undersigned acknowledges that the
foregoing attorney in fact, in serving in such capacity at the request of the
undersigned, is not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

              This Power of Attorney shall remain in full force and effect until
(i) the undersigned is no longer required to file Forms 3, 4, and 5 with respect
to the undersigned's holdings of and transactions in securities issued by the
Company, (ii) with respect to an attorney-in fact, such time as the
attorney-in-fact ceases to be an employee of the Company or one of its direct or
indirect wholly-owned subsidiaries or (iii) this Power of Attorney is revoked by
the undersigned in a signed writing delivered to the Company.

From and after the date hereof, any Power of Attorney previously granted by the
undersigned concerning the subject matter hereof is hereby revoked.


              IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 15th day of June, 2021.


/s/ John D. Rainey
Signature


John D. Rainey
Print Name