Subject: File No. S7-19-07
From: Nicholas Stavriotis

August 31, 2007

Dear Secretary Morris:

I watch in amazement how one of my stocks—Dendreon Corporation (DNDN) can just sit on the Reg Sho list day after day.

I support the Commissions proposed elimination of Regulation SHOs options market maker exception and encourage the Commission to complete the administrative steps to accomplish this change as quickly as possible (e.g., by years end). The options market maker exception has been a well known tool of manipulation and must be eliminated promptly to ensure a level playing field for public companies and shareholders.

I commend the Commissions recent action to strengthen Regulation SHO through the elimination of Regulation SHOs grandfather provision. I am also pleased that over the past several months that Chairman Cox has personally spoken about the abuses of naked short selling and the need to end this manipulative practice. However, I remain concerned that, despite the Commissions recent efforts and Chairman Coxs public comments, these abuses continue.

While the elimination of the options market maker exception and the grandfather provision will significantly strengthen Regulation SHO, these changes alone will not adequately solve the problem that results in continued naked short selling and failures-to-deliver. I request that the Commission (1) impose in Regulation SHO a requirement of a firm location of shares to be borrowed before a short sale can be executed, and (2) enable transparency by requiring timely disclosure of the volume of failures-to-deliver shares of companies on the Regulation SHO threshold list. The Commission should issue and complete promptly a notice of proposed rulemaking to implement these two critical components of effective Regulation SHO reform

Thank you. Respectfully,

Nicholas S