My Side Job is a Trader

　　 Zhang Xin retorted: "You just had a wretched expression on your face. It won't work if you don't want me to misunderstand me. Are you embarrassed to despise me?"

　　 "Let you see what I'm researching lately at night, and let you have a long experience."

　　 Wang Shen pretended to say mysteriously.

　　 The two found a chair on the side of the road, and Wang Shen searched for nearby hotels on his mobile phone.

　　 "Damn, are all the hotels within one kilometer nearby so expensive? Five or six hundred a night? This can catch up to the price of a star hotel."

　　 "Would you like to go to a five-star hotel? You are also a rich second-generation, and you still care about this small amount of money?"

　　 "Fart, my money didn't come from a strong wind. Just find a place to sleep. As long as it's not dirty, there is a net and hot water, you can sleep anywhere."

　　Wang Shen was busy looking for a hotel, and Zhang Xin had nothing to do, so he habitually took out his mobile phone to read the news.

　　 "Finally found a hotel with acceptable prices, go, let's walk slowly, only 1.5 kilometers."

　　 Zhang Xin put away the phone, the two followed the navigation, walked for more than half an hour, finally arrived at the destination.

　　 After checking in, the two of them found the room and lay down on the bed.

　　 After the soreness in the legs disappeared, the two of them happened to recharge their phones at the same time.

　　 Wang Shen took out his notebook and motioned to Zhang Xin to get closer to him.

　　 Zhang Xin is very curious about what Wang Shen wants him to see.

　　 I saw Wang Shen operate and opened the market software and trading software.

　　 Seeing that the interface was all in English, Zhang Xin was confused.

　　 "This is a golden plate. I'll use gold to demonstrate later." Wang Shen seemed to see Zhang Xin's confusion and took the initiative to explain to him.

　　 "By the way, there seems to be no formal platform in our country to make international varieties like gold, right?"

　　 "Yes, but I complete the transaction through a third-party platform."

　　 "Third-party platform? Is the fund safe and reliable? Don't go to the last platform to take your money away."

　　 Wang Shen stopped his movements, looked at Zhang Xin, and said, "It seems that I need to add some financial knowledge to you."

　　 "The knowledge we learned before is the domestic financial transaction system, and there is a foreign transaction system, which is very different from ours.

　　In foreign countries, the place where individuals operate stock trading is not done directly on the exchange, but on the brokerage platform where they open an account.

　　 In other words, there is a gambling transaction between stockholders and brokerage firms. The stocks you buy are not sold to you by other stockholders, but sold to you by your brokerage firm.

　　 So the money you make is lost to you by your broker. The more you make, the more your broker loses. This is the market maker system. "

　　 Zhang Xin has never been in contact with foreign financial transactions. He has always thought that the domestic and foreign trading systems are the same.

　　 "That stockholder has made money, isn't the market maker going to lose money?"

"You are stupid, people can be a market maker, so there is no doubt about their strength, and do you think market makers will really lose money? Don't you know that there is an operation in the financial market called hedging trading? People have long passed on risk Not only will you not lose money, but you will also earn you a commission."

　　 Zhang Xin raised the question in his mind: "That said, don't market makers make a profit without losing money?"

"In theory, this is true, but there are always surprises. Sometimes, in order to obtain more profits, some market makers will not hedge, but do the opposite. If the market does not follow the direction of stockholders, then do In addition to gaining the funds lost by investors, market dealers will also make a profit of the same amount in the market.

　　 However, there are accidents in everything. Even the most powerful analysts sometimes stumble. Once the market is misunderstood, market makers may lose double their funds. "

　　 After Wang Shen's explanation, Zhang Xin understood the market maker system.

　　 "Then the platform on which you open an account is also a market maker?"

　　 "Of course, so I don't have to worry about fund security at all, unless the platform goes bankrupt. If that happens, I can only admit it."

　　 Since the market maker system is not recognized in China, once the platform goes bankrupt, Wang Shen has no way to report the crime to the police. He can only pin his hopes on the business reputation of the market maker behind the platform.

　　 Wang Shen saw that Zhang Xin had no doubts, and proceeded to operate the computer.

　　 After a few minutes, Wang Shen exclaimed excitedly: "It's done, you will look at my account later."

Then Wang Shen opened the code editor and clicked to run one of the files. A magical thing appeared: Wang Shen did not perform any operation, and Wang Shen's account actually performed a buy operation, and then it was performed again a few seconds later. Selling, in just a few minutes, the account has completed more than a dozen transactions.

　　 "Automatic trading?"

　　 Although Zhang Xin has heard of trading through programs, it is the first time he has seen it with his own eyes.

　　Wang Shen stopped the program with a smug look, and said braggingly: "How is it? Does it feel shocking, does it open up a new world?"

　　 Zhang Xin calmed down from his surprise, and said, "Awesome, you haven't learned programming, so you can write code scripts?"

　　 "Ha! Where can I write code? I got this code from someone else, and then modified it. It barely works. It looks pretty good at the moment, at least there is no crash."

　　 "That's also great, and I don't know the python language, you can come up with a code that can run normally, UU reading www.uukānshu.com is already very good."

　　 "The focus of the simulation market operation just now is not automatic trading, but in just a few minutes, I completed more than a dozen single trading operations, you can look at the profit and loss of the account funds."

　　 Zhang Xin clicked on Wang Shen’s demo account and found that although the dozen transactions just now had losses and gains, in the end they still made a profit. Although not much, they are profitable after all.

　　 "How is it? What did you see?"

　　 Zhang Xin thoughtfully, looking at a dozen transactions, he suddenly remembered a trading method he had heard.

　　 "Quantitative trading?"

　　 Although Zhang Xin was asking, his tone was quite positive.

　　 "YES, the answer is correct. This is quantitative trading, and it is also something I studied in the recent period."

　　 Wang Shen showed a proud face.

　　 "So you are going to do quantitative trading in the future?"

"I have such an idea, but it is still experimenting. After all, the trading strategy needs to be perfected. It is impossible to let the program keep buying and selling without thinking? It is estimated that no money will be made, maybe even a big loss. A handling fee."

　　 Zhang Xin thought for a while. It is indeed the case. As long as there are transactions in stocks or gold, a handling fee will be imposed on the account opening platform. If there are dozens or hundreds of transactions in a day, the handling fee is a lot of money.

"This is one of the costs of quantitative trading, so I need to adjust and improve my trading strategy and set some conditions. Only when the conditions I set are fully met, the program will complete the transaction. A good trading strategy must at least ensure that the probability of my profitable transaction exceeds 51%, if the handling fee is also included in the loss, it means that the probability of a profitable transaction is more than 55% or even higher, so that I can guarantee that the overall is profitable."