Seeing everyone's reactions, Qiao Tianyu was a little puzzled, what's wrong?

"Brothers, do you not believe in your brothers?" Qiao Tianyu asked in confusion.

"Haha, Brother Qiao, it's not that I don't believe you, it's just that you don't need it. ”

He Junliang, who was sitting next to Qiao Tianyu and the eldest among them, was the first to speak.

"Oh?" Qiao Tianyu's heart was shocked, "Do you guys have a better way to invest?" ”

"Haha, it seems that Brother Qiao doesn't know much about the affairs of our university fund circle. He Junliang said with a smile, "Then I'll explain it to my brother." ”

"Since the pound crisis last year, the world economy has weakened, financial markets have been hit hard, and our university fund investment has also been greatly affected. ”

So last year, Boston's major university funds joined forces and spent a lot of money to hire the Department of Mathematics and the Department of Computer Science of Harvard University to jointly develop a new data arbitrage model called the gamma model after a year. ”

"This year, our university funds have used the gamma model with great success, and the annual return on investment has been stable at 20%, which has greatly exceeded the income of previous years. ”

"So we don't really need to put our money in hedge funds, it's too risky, and it's hard to guarantee returns. ”

"Brother Qiao, what do you say?"

"Gamma model?" Qiao Tianyu glanced at Li Jiaxing, who was concentrating on tasting Chinese food, and continued.

"Ladies and gentlemen, using the arbitrage model to find market profitability is indeed the general trend of investment. ”

"But the arbitrage model is too mechanical, can not avoid the market system risk, and can not exhaust all market impact factors, once a small probability event occurs, the arbitrage model will collapse, the risk is too great!"

Qiao Tianyu was right.

In 1998, the collapse of Long-Term Capital Management (LTCM), one of the world's four largest hedge funds, was the collapse of the arbitrage model due to the occurrence of small probability events.

"Hahaha, Brother Qiao, there's no need to worry about this!" He Junliang waved his hand and said confidently.

"The gamma model was jointly developed by a number of mathematics professors at Harvard University, and to put it bluntly, the gamma model has even been verified by the 'Young Riemann' Li Jiaxing, which is absolutely accurate and impossible to have any problems!"

"By the way, Brother Qiao, you know Li Jiaxing, right? That's a mathematical wizard once in three hundred years, no matter what mathematical model, as long as it passes through his eyes, there will be no mistakes!"

"Of course, Brother Joe, we all know that you have a set of investment trading, but after all, you don't understand mathematics, so don't comment on the gamma model. ”

"Ahem!"

At this time, Li Jiaxing, who was concentrating on eating vegetables on the side, seemed to see an opportunity to repay Qiao Tianyu for "giving way to the question", only to see that he deliberately coughed twice and turned his head to look at He Junliang.

"Manager He, I have a few things to ask. ”

Seeing Li Jiaxing speak, Qiao Tianyu smiled heartily and knew that today's matter was right.

In fact, Qiao Tianyu understands that Li Jiaxing's move is also a reciprocation for giving him Goldbach's conjecture.

"May I ask who this little brother is?" He Junliang found out that there was a child at the dinner table.

"Uh......" Qiao Tianyu just wanted to explain, but was robbed by Li Jiaxing, "I am Brother Qiao's little follower." ”

"Oh, is it?" He Junliang heard that he was a little follower, and his tone became arrogant, "Then you can talk about it." ”

"Since February of this year, the Fed has raised interest rates several times, and within two hours of each rate hike, the portfolio of securities selected by the gamma model is often wrong and does not make much sense, right?"

"This ......" After listening to Li Jiaxing's question, the arrogant smile on He Junliang's face suddenly froze.

"Also, the accuracy of the gamma model can be as high as 94% when selecting U.S. domestic bonds, but when it comes to overseas securities, especially convertible bonds in the U.K. and Japanese markets, the accuracy of the gamma model will be greatly reduced, right?"

"You...... How do you know?" began to sweat on Ho's forehead.

"Also, when the gamma model selects a risk-free arbitrage portfolio, there is always a term deviation in the selection of stock index futures, which must be manually corrected, am I right?"

"Who the hell are you? How do you know this?!"

After listening to Li Jiaxing's third question, He Junliang stood up suddenly, pointed at Li Jiaxing and asked.

"I'm the 'Young Riemann' you just said --- Li Jiaxing!"

Li Jiaxing also stood up, took a glass of wine and walked over to Qiao Tianyu.

"He is the Li Jiaxing???!!!"

"It seems to be about the same age!"

"Oh my God!

"I heard that even the president of Harvard couldn't move him!"

"Needless to say, the president of Harvard, I heard that the president of the United States wanted to visit him last year, and he was closed!"

.......

For a while, everyone at the dinner table was surprised that their eyes fell, it seems that Li Jiaxing's arrogance and arrogance are famous throughout Boston!

"Manager He, you just said that my eldest brother doesn't understand mathematics, right?"

Li Jiaxing came to Qiao Tianyu's side, respectfully took the initiative to pick up Qiao Tianyu's wine glass, touched his wine glass, and then handed it to Qiao Tianyu with both hands.

Qiao Tianyu smiled knowingly and drank all the wine in the cup with Li Jiaxing.

"I ...... I ......"

Seeing Li Jiaxing, who was known for his arrogance, calling Qiao Tianyu's eldest brother and taking the initiative to "carry wine" for Qiao Tianyu, He Junliang began to stutter in surprise.

"Everyone here, you can go to the Department of Mathematics of Harvard University to inquire, today Brother Qiao Tianyu defeated me with mathematics, I lost convincingly, from today on, I will follow the eldest brother!"

After speaking, Li Jiaxing bowed respectfully to Qiao Tianyu, and then returned to his seat with a wine glass.

"Looks like that's the case!"

"I just heard that someone defeated Li Jiaxing, but I didn't expect it to be Qiao Tianyu!"

"Qiao Tianyu is better than Li Jiaxing? Oh my God!"

"I didn't say just now that Qiao Tianyu doesn't understand mathematics!"

......

Li Jiaxing's actions completely stunned everyone present, they would never have thought that it would be Qiao Tianyu who defeated Li Jiaxing!

"Joe... Brother Joe, just... I was disrespectful just now. He Junliang was so ashamed that his face was flushed and he stammered.

"Haha, all the guys are serious. Qiao Tianyu took the initiative to pour himself full of wine.

"Everyone is a Chinese person! No matter what! I respect everyone! We will make a fortune together in the future!"

"Okay, good, we respect you! We respect you! Get rich together!"

Everyone present hurriedly got up and took the initiative to come over to clink glasses with Qiao Tianyu, and the arrogance on the faces of these people just now disappeared.

"But Lai... Master Lai, I... I really can't figure it out, hasn't the gamma model been seen by you, why are there still problems?"

After saluting Qiao Tianyu, He Junliang still didn't give up, he poured another glass of wine, walked to Li Jiaxing's side, and asked Li Jiaxing respectfully......