From: Bruce Aronow [Bruce.M.Aronow@rorerasset.com] Sent: Friday, December 19, 2003 9:06 AM To: 'rule-comments@sec.gov' Subject: File No. SR-NSCC-2003-21 Dear Mr. Secretary: Our firm, Rorer Asset Management, LLC, is writing the SEC in support of the rule amendment filed by the National Securities Clearing Corporation (SR-NSCC-2003-21) and we align our comments with those of our national trade organization, The Money Management Institute, a copy of which is attached. Because the envisioned Separately Managed Account Service will bring improved operating efficiencies to investors and our firms, we ask that you approve the NSCC filing as promptly as possible. Sincerely yours, Bruce M. Aronow Executive Vice President, Chief Operating & Financial Officer Rorer Asset Management, LLC One Liberty Place, Suite 5100 Philadelphia, PA 19103 215-640-3175 <> DISCLAIMER: For more information on Rorer Asset Management, LLC or its wholly-owned subsidiary Advantage Outsourcing Solutions, visit our websites at www.rorerasset.com and www.advantage-outsourcing.com. The information in this message is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, or distribution of the message, or any action or omission taken by you in reliance on it, is prohibited and may be unlawful. Please immediately contact the sender if you have received this message in error. Thank you.