Online yinxian buying refers to buying when the stock is in a good upward trend and should be adjusted to an important support level. Offline selling refers to falling below the important support level and not selling yet. At this time, it should be a rebound and pull back to the broken area to sell.

This is a theoretical concept. The trend in reality is much more complicated, just like there are multiple moving averages, which one should be taken as the standard, which needs more in-depth discrimination.

"Buy online and sell offline" has certain practical value, but it must be combined with the trend and form of the whole market and cannot be interpreted and operated dogmatically.