the ultrashort financial pro shares are skf.t's in so much damage that bank stocks and cost taxpayers billions of dollars back in the heat of the crisis. i've been advocating that the s.e.c. that doesn't understand how these work should ban these etfs, because they simply don't do what most people believe they do. they have to rebalance every day, they only work for day traders. what do we need that for? give day traders triple the power to knock the stock down? if you hold them for a longer period than that, your performance is different from what the retail investor expects. let's take the skf, which is supposed to let you short the banks with double the firepower. do you know that you lost money if you held on for all of 2008? even though we know the bank stocks got crushed you lost money because of daily rebalancing that causes volatility. these things didn't work for you. these leveraged etfs is a terrible way to hedge, because the long-term performance has more to do with volatility and nothing to do with the underlying in