The original index of Tongda letter can be used as a reference for stock selection, but because the original index is a technical embodiment, some retail investors can't understand it, can't understand it, and don't even know where to start!

Therefore, teachers are often asked to compile bargain-hunting indicators and write some simple indicators, such as trading point indicators, band bargain-hunting indicators and so on.

Therefore, it is most important to understand the meaning behind the indicators.