Subject: File No. SR-NSCC-2021-801
From: Mark KEOGHAN
Affiliation: Individual Invester

April 9, 2021

I support this amendment. To give regulators the necessary tools to make the US stock market a fair trade for all parties involved. In particular, the SLD can be used to exert market pressure on participants who abuse their market maker privileges. Such as naked short selling, hiding failure to delivers, using OTC privileges to withhold/manipulate buying pressure that benefits their short position (or affiliates). To name a few.

If tools like the SLD are amended to be this useful, as a retail investor, I would feel more comfortable/safer about increasing my portfolio.

Thank you for your time.