The length of the trading volume column below the stock time-sharing chart is in the trading volume state (one column per minute), and the longer it is, the greater the trading volume at this price; Every stock software has different functions and color labels. If it is in a time-sharing chart, there will be three indicators in most cases, which are expressed in three different colors:

1. At a price, if you take the initiative to place an order, or place an order first, and then the seller places an order or delivers it in real time, it will generally be indicated by a red line column (some will use yellow or other colors);

2. White-line columns generally appear in both trading orders and real-time trading orders, that is, someone happens to buy and sell goods at the same price at the same time;

3. If the transaction in the red column is just the opposite, that is, the active pending order is sold or delivered in real time, and then the buyer receives the goods, the green label will generally be used.

These three indicators are generally used to analyze a certain price, the buying and selling strength of bookmakers and most retail investors, and their confidence in the market outlook.