One person's transactions may be chaotic and irregular, but the transactions of a large group of people will form order and form rules at certain special moments. Indicators and strategies were born to explore and understand these orders and laws.
From the user's point of view, there is no need to understand the deep logic behind this, but only need to understand whether indicators and strategies really have a probability advantage at certain special moments.
Different trading markets, due to the overall differences among the participants, will cause indicators and strategies to be incompatible when transplanted between different markets. At this time, correction and optimization are required.
For example, Thomas DeMarco's TD sequence, 13 is most suitable for the US stock market, but when transplanted to A-shares, 9 becomes optimal; for example, Bill Williams' consistent profit method, transplanted to A-shares, requires parameter adjustment on MACD. can play a greater role.