Hmmm....not sure. I don't see any other sites reporting much/any volume.... <a href="http://bigcharts.marketwatch.com/quickchart/quickchart.asp?symb=spzi&sid=0&o_symb=spzi" rel="nofollow" target="_blank">http://bigcharts.marketwatch.com/quickchart/quickchart.asp?symb=spzi&sid=0&o_symb=spzi</a>