FORM 8-K--CURRENT REPORT




                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

       Date of Report (Date of earliest event reported). April 21, 2000.
                                                         -----------------------

                                   NFYIX, INC.
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             (Exact name of registrant as specified in its charter)

             New York                 0-21324                    06-1344888
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   (State or other jurisdiction     (Commission                 (IRS Employer
   of incorporation)                File Number)             Identification No.)

                      333 Ludlow Street, Stamford, CT 06902
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               (Address of principal executive offices) (Zip Code)


       Registrant's telephone number, including area code: (203) 425-8000




Item 4. Changes in Registrant's Certifying Accountants.

The Audit Committee of the Company's Board of Directors approved a change in the
Company's  independent  accountants  for the year ended December 31, 2000,  from
Arthur  Andersen LLP ("Arthur  Andersen") to Deloitte & Touche LLP  ("Deloitte &
Touche").  Arthur Andersen was dismissed on April 21, 2000 and Deloitte & Touche
was engaged on April 27,  2000.  The report of Arthur  Andersen  for each of the
three years in the period ended December 31, 1999 contained no adverse opinions,
disclaimer of opinion or qualification or modification as to uncertainty,  audit
scope or  accounting  principles.  During  each of the three years in the period
ended  December 31, 1999,  there were no  disagreements  between the Company and
Arthur Andersen on any accounting  principles or practices,  financial statement
disclosure  or  auditing  scope or  procedure,  which,  if not  resolved  to the
satisfaction  of Arthur  Andersen  would have caused it to make reference to the
subject  matter of the  disagreement  in  connection  with its report.  No event
described in paragraph  (a) (1) (v) of Item 304 of  Regulation  S-K has occurred
within the Company for each of the three years in the period  ended  December 31
1999.

The  Company  has  provided  Arthur  Andersen  with  a copy  of the  disclosures
contained herein.

The  Company  did not consult  with  Deloitte & Touche  during each of the three
years in the period ended  December 31, 1999 on any matter which was the subject
of any  disagreement or any reportable event or on the application of accounting
principles to a specified transaction, either completed or proposed.




SIGNATURES

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

NYFIX, Inc.



By:  /s/Peter Kilbinger Hansen
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        Peter Kilbinger Hansen
        Chairman of the Board and President
            (Chief Executive Officer)

Date:  April 28, 2000