Old-brand cottages can be roughly divided into two categories:

1. Trend type:

This type of rise is continuous and steady. When the price fluctuates, it will adjust multiple times, which can provide us with multiple opportunities to get on board. It is suitable for trend following strategies.

2. Explosive type:

This type of price will rise rapidly in a very short period of time, with concentrated gains and violent fluctuations. There are few mid-term adjustments, and there is almost no chance to get on board mid-term. You can only make breakthroughs and chase the rise.