FORM 8-A

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) or (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

                                 iShares Trust
                                 -------------
            (Exact name of registrant as specified in its charter)


State of Delaware                                          94-35127
- -----------------                                       -----------------
(State of incorporation or organization)                 (IRS Employer
                                                        Identification No.)


c/o Investors Bank and Trust Company
200 Clarendon Street, Boston, MA                               02116
- ----------------------------------                          -----------
(Address of principal executive offices)                     (Zip Code)


Securities to be registered pursuant to Section 12(b) of the Act:

Title of each class                             Name of each exchange on which
to be so registered                             each class is to be registered

iShares S&P 100 Index Fund                      Chicago Board Options Exchange
- --------------------------                      ------------------------------

If this form relates to the registration of a class of securities pursuant to
Section 12(b) of the Exchange Act and is effective pursuant to General
Instruction A.(c), check the following box.  [X]

If this form relates to the registration of a class of securities pursuant to
Section 12(g) of the Exchange Act and is effective pursuant to General
Instruction A.(d), check the following box.
[  ]

Securities Act registration statement file number to which this form relates:
333-92935



Securities to be registered pursuant to Section 12(g) of the Act: None

Item 1.  Description of Registrant's Securities to be Registered

Reference is made to the Registrant's Post-Effective Amendment No. 3 to the
Registration Statement on Form N-1A, dated June 19, 2000 (Securities Act file
number 333-92935 and Investment Company Act file number 811-09729), which is
incorporated herein by reference.

Item 2.  Exhibits

1.  Registrant's Agreement and Declaration of Trust, incorporated herein by
reference to Exhibit (a) to the Registrant's Post-Effective Amendment No. 2 to
the Registration Statement on Form N-1A, dated May 12, 2000 (Securities Act file
number 333-92935 and Investment Company Act file number 811-09729) (the
"Registration Statement"), which is incorporated herein by reference.

2.  Registrant's Amended and Restated By-Laws, incorporated herein by reference
to Exhibit (b) to the Registration Statement.

3.  Form of Global Certificate for the Registrant's Securities being registered
hereunder, incorporated herein by Reference to Exhibit 3 to the Registrant's
registration of securities pursuant to Section 12(b) on Form 8-A, dated May 18,
2000 (Securities Exchange Act file number 001-15897), which is incorporated
herein by reference.


                                   SIGNATURE


Pursuant to the requirements of Section 12 of the Securities Exchange Act of
1934, the Registrant has duly caused this registration statement to be signed on
its behalf by the undersigned, thereto duly authorized.


                                                iSHARES TRUST
Date: September 8, 2000

                                                By: /s/Susan C. Mosher
                                                    ------------------------
                                                    Susan C. Mosher
                                                    Secretary