Subject: File No. S7-02-10
From: Greg Campion

April 13, 2010

The liquidity providers in the market are qucikly drying up. Sub-penny orders are stepping in front of the NBBO which causes an extreme problem for the overall market. If the liquidity providers are gone there will only be one result for the market. (Down). This may take time, however the issue needs to be addressed. Specifically the sub-penny rules need to be re-examined by the SEC.