Subject: File Number SR-NSCC-2023-003, SR-FICC-2023-004, and SR-DTC-2023-003

Dear Securities and Exchange Commission,

firmly do not support these rule changes proposed by File Number SR-NSCC-2023-003, SR-FICC-2023-004, and SR-DTC-2023-003.

The proposed rule change consists of modifications to the Framework to clarify the Clearing Agencies’ practices concerning the valuation of:

(i) securities eligible for clearance and settlement processing by the applicable Clearing Agency and

(ii) with respect to the CCPs, eligible securities in their respective Clearing Funds (each, a “CUSIP”). Specifically, the proposed rule change would clarify certain aspects of the Framework concerning

(i) the selection of third-party pricing vendors (“Pricing Vendors”);

(ii) the monitoring and review of Pricing Vendor data;

(iii) the processing and use of Pricing Vendor data;

(iv) other non-substantive aspects of the Framework

I do not support this because it gives power to other parties to adjust pricing for stocks that is well outside a price set by traders in a security, where the price is set by buyers and sellers.

This change will significantly reduce or eliminate the marketplace from truly be a market.

I firmly do not support these rules changes.