Resistance level: a position that exerts pressure on market prices.
Support level: A position that supports the market price.
The common support and resistance are as follows:
1.The upper and lower edges of the densely traded area are the positions of resistance and support
2.The previous highs and lows are also the locations of resistance and support levels
3.When the price moves in the densely traded area of the previous period, the densely traded area of the previous period will put pressure on the price. This is also the position of resistance and support
4.Fibonacci retracement and extension line positions
5The previous day’s highest price, lowest price and today’s opening price.