二元期权系统 (Binary Options System)

I have been trading binary option (Currency) it seem to be less stressful - You can trade from $5 to $500 or more per option

For me - I look at price on 30 min chart at the and will place on buy(call) or sell (put) that price will close above or below the open price at the end of 30min

example eu - open 13400 -- time 8:00 -- call = price will close above 13400 @8:30 = if it does you win 75%-81% from your investment = invest $10 return =$17.50

Any suggestion - or trading system that will tell me if price will close above or below - base on the above

I came up with this so far.. the system have to be correct only 60% anything above will be pension money

I am thinking using bbands on its singal