1. Trend indicators: MACD indicators, DMI indicators, DMA indicators and TRX indicators.

Second, energy indicators: BRAR indicators, CR indicators, VR indicators.

3. Quantity and price indicators: OBV indicators, ASI indicators, EMV indicators and WVAD indicators.

In fact, there are many indicators, at least 1000, and each has its own emphasis. No investor can cover everything. Personally, I think that mass investors only need to be familiar with a few of them. Commonly used technical indicators are KDJ, RSI, etc. Generally speaking, when the K value crosses the D value twice at a low level (about 20%), it is a good buying opportunity;

When the high position (above 80%) crosses the D value twice, a dead fork is formed, which is a good selling opportunity.

When the RSI index is 0-20, the crude oil is oversold and the position can be opened;

80- 100, overbought, you can close your position. It is worth pointing out that the biggest deficiency of technical indicators is the lag, and taking it as the only reference standard will often bring great errors.