Hi Alexed first Q....5 days chart live IWM RUT base and TNA SSO.and you can see what is the different ..TNA more active UP/DN then SSO second Q... shares...variable no standard.. http://chart.finance.yahoo.com/z?s=IWM&t=5d&q=2&1=on&z=l&c=TNA,SSO,&a=v&p=s&lang=en-US®ion=US