I just noticed that many people are still confused about the various symbols attached to stock names in trading apps, such as CA, XD, XM, T1, T2. In reality, these symbols have very different meanings, and they tell us important information about what will happen to that stock in the next 7 days.

Starting with CA, which stands for Corporate Action. This means that the stock is about to undergo an important event, such as dividend payments, shareholder meetings, or new stock offerings. If you click on the CA, you will see details about what is about to happen and when it will occur.

Now, regarding the letter X that appears before various symbols like XD, XM, XW—X stands for Excluding. This means you will not receive certain rights. For example, XD, which stands for Excluding Dividend. If you buy the stock when it goes XD, you will not receive the dividend for that round. But if you buy it the day before it goes XD, you will still receive the normal dividend. XM means you do not have the right to attend the shareholder meeting. XW indicates you do not have the right to buy Warrants. There are many others, such as XR for rights to subscribe to new shares, XS for short-term Warrants. The main idea is that all symbols starting with X indicate you will lose certain rights.

There is also another group marked with T, such as T1, T2, T3, which appear when a stock's price surges rapidly with high speculation. The stock exchange then implements measures to prevent excessive speculation. If marked T1, you must buy with cash only (Cash Balance). If the price continues to rise, it may be raised to T2, which prohibits using the stock as collateral. If it still rises further, it can be raised to T3, which additionally prohibits net settlement, meaning you cannot buy and sell multiple times within the same day.

Other warning symbols include H, which means Trading Halt (temporary trading suspension); SP, meaning Trading Suspension (lasting more than one session); NC, indicating the company might be delisted from the market; and C, which stands for Caution, warning investors to be careful. These are red flags that should be taken seriously.

For those buying stocks to receive dividends, an important variable is to buy before the stock goes XD. The last day to buy before XD is the day prior to the XD date. After that, you will receive dividends at the same rate as those who bought earlier, regardless of the purchase date.

Overall, understanding the CA symbol and other suffix symbols attached to stocks is very important because they tell us what is happening with that stock—whether it’s an opportunity to receive certain rights or a warning sign to be cautious about. Before making any buy or sell decision, you should carefully check what symbols are attached.