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CUSIP NO. 449623107                    13G                          PAGE 1 OF 10
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                       SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC 20549

                                  SCHEDULE 13G

                                 (Rule 13d-102)

            INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED
                            PURSUANT TO RULE 13d-2(b)
                                (Amendment No. )*

                                IHOP Corporation

                                (Name of Issuer)

                                  Common Stock

                         (Title of Class of Securities)

                                    449623107

                                 (CUSIP Number)

                                 October 31, 2000
             (Date of Event Which Requires Filing of this Statement)

Check the  appropriate box to designate the rule pursuant to which this Schedule
is filed:

     [X]  Rule 13d-1(b)
     [ ]  Rule 13d-1(c)
     [ ]  Rule 13d-1(d)

---------------
     * The  remainder  of this cover  page  shall be filled out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

     The  information  required in the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 or otherwise  subject to the  liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes.)


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CUSIP NO. 449623107                    13G                          PAGE 2 OF 10
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1.   NAME OF REPORTING PERSON, S.S. OR I.R.S. IDENTIFICATION NO.OF ABOVE PERSON

     The Baupost Group, L.L.C., 04-3402144

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *

     (a)
     (b) X

3.   SEC USE ONLY


4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     The Commonwealth of Massachusetts

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON:

5.   WITH SOLE VOTING POWER

     2,099,400

6.   WITH SHARED VOTING POWER

     0

7.   WITH SOLE DISPOSITIVE POWER

     2,099,400

8.   WITH SHARED DISPOSITIVE POWER

     0

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     2,099,400

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *


11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     10.49%

12.  TYPE OF REPORTING PERSON *

     IA


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CUSIP NO. 449623107                    13G                          PAGE 3 OF 10
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1.   NAME OF REPORTING PERSON, S.S. OR I.R.S. IDENTIFICATION NO.OF ABOVE PERSON

     SAK Corporation, 04-3334541

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *

     (a)
     (b) X

3.   SEC USE ONLY


4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     The Commonwealth of Massachusetts

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON:

5.   WITH SOLE VOTING POWER

     0

6.   WITH SHARED VOTING POWER

     0

7.   WITH SOLE DISPOSITIVE POWER

     0

8.   WITH SHARED DISPOSITIVE POWER

     0

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     0

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *


11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     0.00%

12.  TYPE OF REPORTING PERSON *

     HC


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CUSIP NO. 449623107                    13G                          PAGE 4 OF 10
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1.   NAME OF REPORTING PERSON, S.S.OR I.R.S. IDENTIFICATION NO.OF ABOVE PERSON

     Seth A. Klarman, 217-70-0899

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *

     (a)
     (b) X

3.   SEC USE ONLY


4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON:

5.   WITH SOLE VOTING POWER

     0

6.   WITH SHARED VOTING POWER

     0

7.   WITH SOLE DISPOSITIVE POWER

     0

8.   WITH SHARED DISPOSITIVE POWER

     0

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     0

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *



11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     0.00%

12.  TYPE OF REPORTING PERSON *

     HC


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CUSIP NO. 449623107                    13G                          PAGE 5 OF 10
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Item 1 (a) Name of Issuer:

     IHOP Corporation

1(b) Address of Issuer's Principal Executive Offices:

     450 North Brand Boulevard, Glendale, CA 91203-1903

Item 2 (a) Name of Person Filing:

(1)  The Baupost Group, L.L.C.
(2)  SAK Corporation
(3)  Seth A. Klarman

2(b) Address of Principal Business Offices or, if none, Residence:

(1)  The Baupost Group, L.L.C.
     44 Brattle Street, 5th Floor
     Cambridge, Massachusetts 02138

(2)  SAK Corporation
     44 Brattle Street, 5th Floor
     Cambridge, Massachusetts 02138

(3)  Seth A. Klarman
     44 Brattle Street, 5th Floor
     Cambridge, Massachusetts 02138

2(c) Citizenship:

(1)  The Commonwealth of Massachusetts
(2)  The Commonwealth of Massachusetts
(3)  United States of America

2(d) Title of Class of Securities:

     Common Stock

2(e) CUSIP Number:

     449623107


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CUSIP NO. 449623107                    13G                          PAGE 6 OF 10
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Item 3 If this statement is filed pursuant to  SS240.13d-1(b) or 240.13d-2(b) or
(c), check whether the person filing is a:

(a) [ ]Broker or Dealer registered under Section 15 of the Act (15 U.S.C. 78o).

(b) [ ]Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ]Insurance Company as defined in Section 3(a)(19) of the Act (15 U.S.C.
    78c).

(d) [ ]Investment  Company  registered under Section 8 of the Investment Company
    Act of 1940 (15 U.S.C. 80a-8).

(e) [X]An investment advisor in accordance with S240.13d-1(b)(1)(ii)(E).

(f) [  ]An  employee   benefit  plan  or  endowment  fund  in  accordance   with
    S240.13d-1(b)(1)(ii)(F).

(g) [X]A  parent  holding   company  or  control   person  in  accordance   with
    S240.13d-1(b)(ii)(G).

(h) [ ]A savings  association as defined in Section 3(b) of the Federal  Deposit
    Insurance Act (12 U.S.C. 1813).

(i) [ ] A church  plan that is excluded  from the  definition  of an  investment
    company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.
    S.C. 80a-3).

(j) [ ]Group, in accordance with S240.13d-1(b)(1)(ii)(J).

Item 4 Ownership:

Provide the following  information regarding the aggregate number and percentage
of the class of securities of the issuer identified in Item 1.

(a)  Amount Beneficially Owned: (as of October 31, 2000)

     (1)  The Baupost Group, L.L.C.: 2,099,400

     (2)  SAK Corporation: 0

     (3)  Seth A. Klarman: 0






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CUSIP NO. 449623107                    13G                          PAGE 7 OF 10
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(b) Percent of Class:

     (1)  The Baupost Group, L.L.C.: 10.49%

     (2)  SAK Corporation: 0.00%

     (3)  Seth A. Klarman: 0.00%


(c) Number of shares as to which such person has:

(i)  sole power to vote or to direct the vote

     (1)  The Baupost Group, L.L.C.: 2,099,400

     (2)  SAK Corporation: 0

     (3)  Seth A. Klarman: 0


(ii) shared power to vote or to direct the vote

       --- 0

(iii)sole power to dispose or to direct the disposition of

     (1)  The Baupost Group, L.L.C.: 2,099,400

     (2)  SAK Corporation: 0

     (3)  Seth A. Klarman: 0


(iv) shared power to dispose or to direct the disposition of

     --- 0

     Instruction:  For computations regarding securities which represent a right
to acquire an underlying security seess.240.13d-3(d)(1).


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CUSIP NO. 449623107                    13G                          PAGE 8 OF 10
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Item 5 Ownership of Five Percent or Less of a Class:

     If this  statement  is being  filed to report  the fact that as of the date
     hereof the reporting  person has ceased to be the beneficial  owner of more
     than five percent of the class of securities, check the following [ ].

Instruction: Dissolution of a group requires a response to this item.

Item 6 Ownership of More than Five Percent on behalf of Another Person:

     The Baupost Group, L.L.C.  ("Baupost") is a registered  investment adviser.
     SAK  Corporation  is the Manager of Baupost.  Seth A. Klarman,  as the sole
     Director of SAK  Corporation  and a controlling  person of Baupost,  may be
     deemed to have  beneficial  ownership under Section 13(d) of the securities
     beneficially owned by Baupost.  Securities reported on this Schedule 13G as
     being beneficially owned by Baupost include securities  purchased on behalf
     of a registered investment company and various limited partnerships.

Item 7 Identification  and  Classification  of the Subsidiary Which Acquired the
Security Being Reported on By the Parent Holding Company:

     See attached Exhibit A

Item 8 Identification and Classification of members of the Group:

     N/A

Item 9 Notice of Dissolution of Group:

     N/A


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CUSIP NO. 449623107                    13G                          PAGE 9 OF 10
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Item 10 Certification:

        By signing below I certify that, to the best of my knowledge and belief,
        the securities referred to above were acquired in the ordinary course of
        business  and were not acquired for the purpose of or with the effect of
        changing or influencing  the control of the issuer of the securities and
        were  not  acquired  and  are  not  held  in  connection  with  or  as a
        participant in any transaction having that purpose or effect.

Signature

After  reasonable  inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

November 9, 2000
Date

THE BAUPOST GROUP, L.L.C.


By:  /s/ Seth A. Klarman
     Seth . Klarman
     President

SAK CORPORATION


By:  /s/ Seth A. Klarman
     Seth A. Klarman
     President

SETH A. KLARMAN


By:  /s/ Seth A. Klarman
     Seth A. Klarman


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CUSIP NO. 449623107                    13G                         PAGE 10 OF 10
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EXHIBIT A

Item 3

     (1) The Baupost Group, L.L.C. IA

     (2) SAK Corporation HC

     (3) Seth A. Klarman HC

     The Baupost Group, L.L.C.  ("Baupost") is a registered  investment adviser.
     SAK  Corporation  is the Manager of Baupost.  Seth A. Klarman,  as the sole
     Director of SAK  Corporation  and a controlling  person of Baupost,  may be
     deemed to have  beneficial  ownership under Section 13(d) of the securities
     beneficially owned by Baupost.  Securities reported on this Schedule 13G as
     being beneficially owned by Baupost include securities  purchased on behalf
     of a registered investment company and various limited partnerships.

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