Exhibit 23.1


                          INDEPENDENT AUDITORS' CONSENT

We consent to the  incorporation  by reference in  Registration  Statements  No.
333-70037 and No.  333-93943 on Form S-3 and No. 333-95285 on Form S-8 of NYFIX,
Inc. of our report dated March 2, 2001 (March 14, 2001 as to Note 18), appearing
in this Annual  Report on Form 10-K of NYFIX,  Inc. for the year ended  December
31, 2000.


                                                       /s/ DELOITTE & TOUCHE LLP

Stamford, Connecticut
March 28, 2001