
<PAGE>   1


   
                                  FORM 10-Q/A
    
                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.   20549


(Mark One)

[ x  ]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE   
        SECURITIES EXCHANGE ACT OF 1934                           


For the Quarterly period ended  September 30, 1995
                                ------------------

[    ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES   
        EXCHANGE ACT OF 1934                                                  


For the transition period from ______________________ to _______________________
                            
                            
Commission file number    1-12688
                          -------

                    STEWART INFORMATION SERVICES CORPORATION
                    ----------------------------------------
             (Exact name of registrant as specified in its charter)


       Delaware                                            74-1677330
- --------------------                                       ----------
(State or other jurisdiction of             (I.R.S. Employer Identification No.)
incorporation or organization)


                    1980 Post Oak Blvd., Houston, TX  77056
                    ----------------------------------------
                    (Address of principal executive offices)
                                   (Zip Code)

                               (713)  625-8100
                               ---------------
              (Registrant's telephone number, including area code)

________________________________________________________________________________

(Former name, former address and former fiscal year, if changed since last
report)

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months, and (2) has been subject to such filing
requirements for the past 90 days.  Yes /X/ No ____

Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of the latest practicable date.

                          Common            5,847,003
                  Class B Common              525,006
<PAGE>   2



                                    PART II


<TABLE>
<CAPTION>
                                                                                     Page                                          
            <S>       <C>                                                             <C>                                          
            Item 1.   *  Legal Proceedings                                                                                         
                                                                                                                                   
            Item 6.      Exhibits and Reports on Form 8-K                                                                          
                                                                                                                                   
                (a)      Exhibits                                                                                                  
                      **3.  -  (ii) - By Laws                                         1                                            
                                                                                                                                   
                      * 4.  -  Rights of Common and Class B Common                                                                 
                               Stockholders                                                                                      
                                                                                                                                   
                      *27.0 -  Financial data schedule                                                                             
                                                                                                                                   
                      *28.2 -  Details of Investments as reported in the                                                           
                               Quarterly Report to Shareholders                                                                 
                                                                                                                                   
                (b)   There were no reports on Form 8-K filed during the                                                           
                      quarter ended September 30, 1995                                                                             
                                                                                                                                   
</TABLE>

- -------------
*  - Previously filed
** - Filed herewith
<PAGE>   3






                                   SIGNATURE




Pursuant to the requirements of the Securities and Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.



                    Stewart Information Services Corporation
                    ----------------------------------------
                                  (Registrant)



   
December 13, 1995
    
- -----------------
    Date


                              /s/  MAX CRISP
                     _____________________________________

                                   Max Crisp
                (Vice President - Finance, Secretary-Treasurer,
                        Director and Principal Financial
                            and Accounting Officer)
<PAGE>   4
                         EXHIBIT  INDEX


            **3.    -    (ii) - By Laws                     

            * 4.    -    Rights of Common and Class B Common  
                         Stockholders                  

            *27.0   -    Financial data schedule             

            *28.2   -    Details of Investments as reported in the
                         Quarterly Report to Shareholders      

- -------------
*  - Previously filed
** - Filed herewith
