As soon as Dong Qiangqiang pressed the doorbell, Duanmu's voice came from the access control telephone: "The door is open, come up quickly."

He gently turned the copper door handle with his hand, and the door was indeed open.

As soon as he walked to the second floor, Dong Qiangqiang heard Duanmu's anxious voice coming from above his head: "It's almost half past two, I thought you were not here."

"The road is long," Dong Qiangqiang comforted, "but haven't I rushed over?"

Duanmu's room is very big, similar to Dong Qiangqiang. His kitchen and bathroom are at the end of the corridor outside the house, and are shared with people on the entire floor.

His room was messy, but it was not clothes, books, magazines, or bowls and chopsticks everywhere, but Lego blocks of various colors.

On the dining table, on the TV cabinet, on the desk, on the sofa, on the bookshelf, and even on the bedside, as long as Dong Qiangqiang can see, there are all Lego toys of various themes, some have been assembled into finished products, while others are still semi-finished products (or wreckage).

Dong Qiangqiang picked up an inconspicuous Lego figure from the desk. He recognized this as the black warrior in the movie "Star Wars" and teased: "Are you still playing with this?"

Duanmu said seriously: "You are holding a limited edition figure of 90 years. Don't look small, it costs more than 300 marks now."

"So expensive?" Dong Qiangqiang was surprised, turned the figure and looked carefully, but did not find anything special. "Isn't this just a building block? It looks very ordinary. Are you lying to me?"

"You haven't touched it at first glance," Duanmu pointed to a row of finished Lego toys of different shapes on the bookshelf and introduced, "The magazine said that in the past five years, the return on investment of Lego toys has been far higher than the fixed deposit rates of German stock markets and German banks. Several series issued by Lego in the early years have now become limited editions, and millions of players around the world are scrambling these building blocks. Although you think it looks ordinary, the endless arrangements and combinations between various bricks are full of charm. It is said that Italian is a big deal.

Leigh and the American Mafia are also stocking up this thing. Do you see the Star Wars Millennium Falcon spacecraft on my shelf? Although it was released last year, it was discontinued at the end of last year. My version has doubled compared to the original price on German eBay, and it continues to rise. Do you still think it 'look ordinary'? I stocked up 10 sets before, but later I sold five sets of them in my heart. I regretted it so much that my intestines were blue." Duanmu said emotionally at the ornaments on the bookshelf.

Duanmu's words made Dong Qiangqiang dumbfounded. He didn't expect that Lego was still a hard currency. He looked at the row of blocks on the bookshelf again and sighed: "It turns out that it is similar to the Jordan Stone Ring in Diablo 2 Battle Network."

Duanmu is naturally well aware of the reputation of Diablo 2 and Jordan Stone. He agreed: "Yes, they are the same thing, and the Jordan Stone ring is now sold for about $20 per on eBay."

"Ok, you've increased your knowledge." Dong Qiangqiang carefully put the figure in his hand on the bookshelf, and changed his subject, "What is Volkswagen's price now?"

When Duanmu's emotions immediately faded like a deflated ball. He sighed and pointed at the computer screen with his finger: "It's half dead, almost the same as in the morning."

"Then what are your plans now?" Dong Qiangqiang was very direct.

"I want to sell (stocks), but I'm afraid that the stock price will rise again after selling it." Duanmu said stutteringly, "I have about 800 shares in my hand. If I sell them all at once... then all the money I earned in the stock market and other aspects this year will have to be paid off, which is not necessarily enough."

"No one can guarantee how the stock price will change in the future, even Buffett can't do it. If you are really worried about future variables, you can sell part of it and keep part of it. In this way, no matter whether it rises or falls in the future, you will not suffer too much, but if you do nothing, it's hard to say. In addition, you have more stocks than call options, and stocks can only make profits from unilateral rises, so you can appropriately allocate some short-term put options for three months to hedge the risk of stock price changes. Apart from that, I can't think of any better way."

"But now... I don't have money." Duanmu looked embarrassed and blushed like a tomato. "I don't have money to buy options, but I want to buy options."

"Don't you have these?" Dong Qiangqiang whined Lego on the bookshelf, "The price of a set has doubled. If you have so many, you should be able to make up a lot by selling them, right?"

"But these... are all limited editions." Duanmu looked at Lego reluctantly, "Some of them were specially brought back from other countries..."

"It's okay not to sell, then you can only pray that Volkswagen stocks will not continue to fall." Dong Qiangqiang high-five, "Since I'm not doing anything, I'll say goodbye first..."

Seeing that Dong Qiangqiang was about to leave, Duanmu said anxiously: "If I buy put options and Volkswagen's stock price rises back three months later, wouldn't I lose more inside and outside?"

"As long as you choose a put option that is similar to your position building cost. For example, your cost is 79 marks, you can choose options that expire in 3 months, and it is also stipulated that Volkswagen's stock price must be lower than 79 marks in 3 months to exercise the right. If the stock price is higher than 79 marks in 3 months, then you lose all the money to buy options, but earn money to rise in the stock. If the stock price is only 65 marks in 3 months, then your stock will lose money, but the options can help you earn some back. And you should know that as long as you don't really sell those stocks, the money you lose when the stock price falls will be a book loss, a floating loss, not a real loss. Do you understand?"

"What if I buy put options but the stock price rises, and the money I earned in the end was not as much as I spent on buying options?" Duanmu's questions came one after another.

"The situation you mentioned does exist," Dong Qiangqiang admitted, "but options generally have leverage, so the price is usually only one-tenth or one-eighth or a fraction of the stock price, and it won't cost much money. In addition, you can also roughly estimate how much money you can make from the stock you have in your hands if the stock price rises to 89 marks, and at the same time, how much money you will lose from the options you have in your hands. After finding a balance point, you will know how many options you should buy. And you must know that many investment institutions can not make money in every transaction when investing. Their investment returns may be 10 yuan on product a and 5 yuan on product b, but the final total returns are positive."

Dong Qianqiang said Duanmu for a long time and hesitated for a long time, sighed, "Oh, okay, then do the same as you said."

"But what I'm talking about is just a temporary measure," Dong Qiangqiang continued, "You still have to find a way to make more money, and open source is the foundation."

When Dong Qiangqiang spoke, Duanmu people had already lie on the ground. When Dong Qiangqiang finished speaking, Duanmu had already pulled out a large black garbage bag from under the bed.

"What is this?" Dong Qiangqiang asked.

"Didn't you ask me to sell collectibles?" Duanmu opened the bag, took out a few exquisitely printed Lego boxes from it, and piled them on the table one by one. "I accept the advice, let's start now. By the way, why don't you start with you? You can buy a few sets of Legos as my first supporter, which can be considered as a fat man."

Dong Qiangqiang didn't expect Duanmu to make such a request with him, and said with a wry smile: "But I don't understand Lego at all."

"What's the matter? You haven't bought German stocks before. Don't you even understand options now?" Duanmu said disapprovingly.

"How come I understand this?" Dong Qiangqiang waved his hand quickly. "All stock options pricing models have been repeatedly calculated through complex mathematical formulas. What price is the most cost-effective to buy actually depends on formulas. We are all laymen, but we just understand a basic concept."

Duanmu didn't listen to his explanation at all, picked out three big boxes from a stack of paper boxes and pushed them in front of him, and said without saying a word: "Don't say I didn't take care of you, these three sets are the best three series of all of them."

"What's this?" Dong Qiangqiang was confused.

"A set of Millennium Falcon spacecraft released last year, and two technology series released earlier, are all limited editions. I definitely can't lie to you. Maybe these three models will increase to 1,000 marks by this time next year."

"Then how much does these three cost in total now?" Dong Qiangqiang asked, pointing to the box.

"Well, I won't leave the eBay price with you. I'll get a 30% discount. I'll take it away with three boxes of 500 marks." Duanmu was heartbroken.

Three boxes cost 500? Dong Qiangqiang couldn't help but smack his tongue, thinking that the pile of building blocks was worth thousands of RMB? But he thought again that Duanmu needs help now, and whether it is urgent or poor, he should help him. Thinking of this, he did not bargain, so he took out the money that Fleisher had just given to him, but had not yet warmed up, and handed it over directly: "Boss Duanmu, I wish you a prosperous business! May the stock rise sharply be with you!"

ps1: This chapter is particularly thankful for the reward of Cordyceps sinensis 6090, Teacher Xia spent money. Thanks to 111, the people who passed the Buddha Temple y Buddha Temple were bigger than the people, Cordyceps sinensis 6090, the recommendation votes.
Chapter completed!