I'm fairly certain that it will go up and down, but it may go down and up. I'm more interested in where it lands than how it gets there though. I have rigged up a device to prevent it going too high. I learned all about it when I traded options. You take a book or two, about options if you have one but almost any will do, maybe more if you have a large monitor, and then use gaffa tape to secure it at the top. It used to be easier back in the good old days of CRT monitors. These new fangled flat screens are a pain. They didn't think it through I guess, in their rush to market, but I digress. It's important not to apply too much tape onto the screen because it takes way too long to remove and some future price action can go with it. Try explaining that the the CFTC. Anyway, I'm not sure about lower prices. Last time I experimented with a medium density sponge just below the monitor. Actually the sponge was fairly small, though thick enough, so I cleverly positioned it just to one side. After all, most of the price action is most active just on the right hand side, have you noticed, so why bother with a really big sponge, right? If you are intending to implement this at home, be careful. Last NFP my sponge was far too stiff and the price just bounced skyward. Once I tried to add a little water, you know, just to make it softer to prevent the bounce, but it nearly wrecked my mouse, the poor little bugger couldn't swim. Who knew?