1, the Fed's interest rate hike is expected to impact high-value growth stocks, and some track sectors suffer losses.

2. U.S. stocks and multinational stock markets have been falling continuously in recent days, and the emotional interference generated by the external market.

3. As the Spring Festival approaches, the funds in the stock market are tightening, the national treasury is watching and trading tends to be cautious.

Extended data:

Basic definition of stock

1. Stock concept

Stock is the abbreviation of share certificate, which is a kind of securities issued by a joint-stock company to shareholders as a holding certificate to raise funds and obtain dividends and bonuses. Shares are part of the capital of a joint-stock company and can be transferred, traded or mortgaged at a fixed price. It is the main long-term credit tool in the capital market.

Stock is a certificate of ownership issued by a joint-stock company, and it is a kind of valuable securities issued by a joint-stock company to all kinds of shareholders as a shareholding certificate to obtain dividends and bonuses. Behind every stock is a listed company. In other words, every listed company will issue shares.

Each share represents the shareholder's ownership of the basic unit of the enterprise. Every stock in the same category represents the equal ownership of the company. The share of ownership of the company owned by each shareholder depends on the proportion of shares held by each shareholder to the total share capital of the company.

2. Stock characteristics

Stock investment is a long-term investment with no term. Once the stock is bought, as long as the stock issuing company exists, no stock holder can recover the stock, that is, the stock issuing company cannot be required to recover the principal. Similarly, a shareholder's identity and rights and interests cannot be changed, but he can sell his shares through the stock exchange market and transfer them to other investors to recover his original investment.

The price and value of stocks

1. Stock issue price: When a stock is listed and issued, the listed company sets a reasonable price for the listed stock, not the par value, from the perspective of the company's own interests and ensuring the success of the stock listing. This price is called the stock issue price.

2. Stock market price: The market price of a stock refers to the transaction price reached by both parties in the transaction process. Usually, the stock price refers to the market price. The market price of stocks directly reflects the stock market and is the basis for investors to buy stocks. Due to the influence of many factors, the market price of stocks is constantly changing. The stock price is the concentrated expression of the stock market value, so this price is also called the stock market.

3. Stock liquidation price: The liquidation price of a stock refers to the actual value represented by each share once the joint-stock company goes bankrupt or liquidates. Theoretically, the liquidation price per share of a stock should be consistent with the book value of the stock. However, when an enterprise goes bankrupt and liquidates, its property value is calculated according to the actual sales price, while when disposing of the property, its sales price is generally lower than the actual value. Therefore, the closing price of the stock will be inconsistent with the net value of the stock. The liquidation price of stocks is only used as the basis for determining the stock price when a joint-stock company loses its legal personality due to bankruptcy or other reasons, and it has no significance in the process of stock issuance and circulation.