Securities: of great significance. Stocks, bonds and warrants are collectively referred to as securities.

Futures: spending money on things that you can't get the actual goods. You can buy short and sell short, and paying margin can amplify the transaction of funds, and the risks and benefits will also be amplified.

Stock: If you buy a company's stock, you are a shareholder of this company. If you feel that the stock has gone up, you can sell it at any time after making money. Only you know what it feels like to lose.

Financing: If the company needs to invest in large projects, it can raise funds by adding a certain number of institutions and retail investors to the previous stock number, or by issuing bonds or warrants. The meaning is similar, that is, making money in disguise.

National debt: that is, the state borrows money from you and then gives you interest, but it must be cashed after the prescribed time limit expires.

Warrant: The product that the joint-stock company makes money in disguise, its own value is basically zero, which is completely market speculation.

Bond: the joint-stock company borrows money from you and then gives you interest, but it must be cashed after the specified period expires. Similar to national debt. It's just that the object of debt collection is different.