A 5281  - June 20, 2001
P&S 4851

TO: ALL PARTICIPANTS

ATTENTION: MANAGING PARTNER/OFFICER, OPERATIONS PARTNER/OFFICER, MANAGER P&S DEPARTMENT, MANAGER DATA PROCESSING DEPARTMENT

SUBJECT: NSCC DISCONTINUES SUGGESTED NAME MATCHING ON AMEX OCS TRANSACTIONS

In conjunction with the American Stock Exchange (Amex), National Securities Clearing Corporation (NSCC) will discontinue suggested name matching for Amex comparison data effective from and after Thursday, June 28, 2001. Trades that would previously have resulted in suggested name matches (M3, fully suggested name match or M4, partially suggested name match) will remain unmatched until resolved in the NYSE On-Line Comparison System (OCS).

The Amex anticipates introducing a new intra-day equity comparison system (IDCE) in the fourth quarter of 2001. When introduced, that system will allow the Amex to match trades on a real-time basis and transmit them to NSCC as locked-in.

Participants will be notified as to further developments as additional information becomes available.

The American Stock Exchange (Amex) has outlined their planned modifications in their companion information circular.

The following print image AutoRoute product is affected by this change:

The Machine Readable (MRO) file affected by this change is shown below. This file format, as well as all other Participant file formats, are available for your use at NSCC's website, http://formats.nscc.com

Questions regarding this change or this notice may be e-mailed to the undersigned at gkrobisch@dtcc.com or contact your DTCC Relationship Manager or Participant Services at (212) 855-4155.

Questions regarding Amex activity in the OCS system should be addressed to Mr. Edward Cook (Amex) at (212) 306-1748.

Gerhard Krobisch
Vice President, Product Marketing and Development