Subject: File No. S7-12-06
From: Bruce Thompson

April 16, 2007

125,000 NEW Naked Short NFI Shares - CHX Chicago

11:14:44 $5.20 125,000 shares CHX Chicago bid/ask 5.18/5.19

This trade is matched with 1,250 Jun $7.50 puts and 1,250 Jun $7.50 calls

Another classic reverse conversion from CHX.

125,000 new bullets they can fire at will to keep a lid on the share price.

Why can't the SEC see what the unwashed of us can see every day?