Periodic resonance is a very useful tool. In addition to judging from the graph, the starting point and turning point are often called another important basis. Periodic resonance can occur in different periods or at the same time. In different periods, the simplest thing is that the large and small graphics break through or fall below in the same direction at the same time. There are others, of course. I have time to elaborate. In the same period, periodic resonance refers to the resonance of historical high and low points in different stages and the accumulated time to the present. Personally, I am used to finding resonance in the same period, which is relatively simple. This is a map of RU 150 1 month, and the screenshot was taken on September 6, 20 14. Because the picture is long, I cut the second half and pasted it. The price in the white box on the right is this week's closing price. Look at the dark yellow line at the bottom of the picture, which is the cumulative time of several historical highs and lows of the lunar cycle. September will be a four-line resonance. That is, the four historical highs and lows all reached their respective time nodes in September, and were calculated according to Gann's quadrilateral diagram. The more time lines that produce resonance, the more obvious and reliable the resonance effect is. Judging from the graph at that time, it was a 5-3-5 ABC wave adjustment from 4 1970. At the beginning of September, it fell below the low point of the third wave in the C wave, and the fifth wave confirmed that this was a good empty spot. All five waves are out, and it's almost over. The four-line resonance in September shows that there is a great possibility of a sharp drop this month. The target position looks at the two positions of the high point/low point of the hammerhead K-line at the starting point of 1 wave, which rose by 5 waves before, forming a complete cycle. If there is no resonance in September, the rate of decline may not be so fast. When the strategy was decided and executed, the result was hitting the high point of the hammer head, that is, near the dark yellow straight line position 1 1435 in the picture (the color in the picture is not very clear, so I just need to understand it when I draw it, but I didn't expect others to read it, so I moved out after a friend asked me). Earning 2000 points in a month is a relatively certain market. At that time, I used half a warehouse (much more than the position control of a single variety, because this probability is too great, it is a pity not to hold a heavy position).