Subject: File No. SR-Amex-2005-072
From: Kenneth G Petzinger
Affiliation: Professor of Physics

January 26, 2006

I would like the SEC to approve the silver ETF. The prior approval of GLD and its overwhelming acceptance by the investing public, including myself, clearly indicate that there is a demand for a silver extension. Such ETF's make holding precious metals SO much easier for investors who want to diversify their portfolios.