I just realized that most people still don't understand these stock suffix symbols at all. When they see a stock go up, CA, they get confused about whether they can buy it or not. So I want to share some knowledge I’ve gathered to make it easier for everyone to understand.

First of all, CA stands for Corporate Action, which means the company is about to have some kind of movement within 7 days. If a stock's CA goes up and you want to know what will happen, you can click to see the details. It will show what is about to happen and when.

Next, there are abbreviations from the X group, which are key to know, such as XD. If you buy during a CA that is of the XD type, you will not receive dividends for that round. But if you bought before that, you will still receive them normally. XM means you do not have voting rights at the shareholders' meeting. XR means you do not have the right to subscribe for new shares. XW means you do not have warrants. There are many others, but the basics are the same: no matter what type of CA a stock has, you will not receive certain benefits.

Then there is the letter T, which indicates that the stock price has risen too much. T1, T2, T3 in order. The higher the level, the more restrictions there are. For example, T1 requires cash purchase, T2 prohibits using it as collateral, T3 prohibits netting. This means that when you sell, the money will not return on the same day but will come back the next day.

Finally, there are warning symbols like H, SP, NP, NC, ST, and C. These signals are for caution. H means trading is temporarily halted for one round. SP means a longer halt. NC indicates the company might be delisted from the market. C means the company has financial problems and is at high risk.

The truth is, understanding these symbols is very important. If a stock has a CA, can you buy it? The answer depends on what type of CA it is. But generally, if you understand what it means, you will know what benefits you will or will not receive. This allows you to decide whether to buy or not according to your preferences.