Bond: actually, it is a white note.
A company or government needs to borrow money from you (an investor). Then he issues bonds.
How much you lend him is the price of the bond. Then he will give you the benefit, which is the interest rate.
I will pay you back the principal, money and interest then.
Fund: Do you know anything about stock trading? This is not much to explain. That is, you take money, buy stocks and decide what to buy. What about the fund?
Some people say that I don't know how to buy stocks and I won't invest. then what So some people claim to be awesome, say they are experts, and then start their own companies to help you invest. Just give the money to the fund company. The fund company will invest your money, but it is agreed that you will bear the profits and losses yourself, and they will charge some fees.
Things will happen: some people fry well and some people fry badly. Yes, the performance of each fund company is different. After a long time, everyone will know whose fund company has a high investment level and his fund will sell well.
Of course, the stock model fund is to help you invest your money in stocks.
Bond funds invest your money in bonds.
Good, okay?
Futures: this thing is wonderful and the gameplay is very complicated. I said make it simple.
Gambling, you know? Buy big and buy small. If you buy it right, you win; If you buy it wrong, you lose.
The same is true for futures. Common futures games are: gold, oil, cotton and soybean.
How to play? Take oil as an example.
I am optimistic that the price of oil will go up, so I will buy it.
I thought it was going to fall, so I bought it.
If his trend is consistent with your judgment, you will make money, otherwise, you will lose.
The principle is like this, but the details are much more complicated. The risk of futures itself is high. Of course, if you make money, you will lose a lot. . .
Do you understand the most basic principles? The specific operation is not as simple as you think. I suggest learning more, haha.