A $50 million margin call? I'll short Wall Street.

[Goldman Sachs Asia Sales Desk, Hong Kong Island, early April, a weekday morning]

Goldman Sachs’ Hong Kong Island office is located on the 77th floor of Two International Finance Centre in Central, overlooking Victoria Harbour.

That morning, Patrick Lin, the Asia Pacific Head of Structured Products Sales, was giving his team the final strategic planning.

Patrick is a second-generation Chinese American who grew up in Boston. He graduated from Harvard and has an MBA from Wharton. He speaks fluent Mandarin but with a distinct American accent, and his suits are always the latest Tom Ford models.

His team calls him "General Manager Lin," but he prefers to be called Patrick.

"Okay, I'll reiterate the key points for this afternoon's conference call."

Patrick stood in front of the whiteboard and wrote three numbers on it with a marker:

110. 150. 200.

"Oil prices are currently at $110. Our research department's target price is $150, while the most aggressive forecasts in the external market have reached $200."

He tapped the number 200 with the tip of his pen.

"This isn't something we said; it's market consensus. We're simply helping our clients hedge against existing risks."

He turned around and scanned the seven or eight young men in white shirts in front of him.

"Regarding Air China, the proposal we submitted last week was a zero-cost collar option, with a cap of $130 and a floor of $80. What did their CFO ask?"

A young woman raised her hand: "He asked, 'What if oil prices fall below $80?'"

"What was your answer?"

"I said, according to Goldman Sachs' research model, under the current macroeconomic environment, the probability of oil prices falling below $80, based on Monte Carlo simulations, is 3.2%."

Patrick nodded. "Okay. But remember, don't say '3.2%' next time."

Why?

"Because 3.2% is a probability that people can perceive."

Patrick wrote on the whiteboard: 3.2% vs. almost impossible.

"If you tell him 3.2%, he'll think, 3 out of 100 times, that's pretty risky. But if you tell him, 'Given the current weak dollar and supply constraints, this is highly unlikely,' he'll hear 'no.'"

He put down his pen.

"We're not lying to them. 3.2% is the actual model output. We're just helping them understand the number."

There was a pause.

"Furthermore, the negotiations with China Eastern Airlines were a bit more complicated. Their risk control committee has an old man surnamed Zhao who has been in the business for over twenty years; he's very conservative. He has a natural distrust of these structured products."

"What should we do?" someone asked.

Patrick picked up an eighty-page PowerPoint presentation from the table and tossed it to the person asking the question.

"Show him the data. The more data, the better. Historical backtesting, stress testing, VAR analysis, scenario simulation—put it all in. Use small fonts and dense charts to make him feel that this has undergone extremely rigorous quantitative verification."

He paused, then added:

"The kind of person Director Zhao isn't distrustful of you; he distrusts things he doesn't understand. If you make things incomprehensible to him, he'll actually think you're more professional."

What if he still hesitates?

Patrick glanced at him:

"Then tell him that Air China is already making progress."

He turned around and erased the contents of the whiteboard.

"Remember, our job today is to help these businesses manage their real fuel cost risks. This is our responsibility, and this is our value."

He said this with great sincerity.

He was so sincere that even Patrick himself half-believed it.

[Morgan Stanley Shanghai Representative Office, One Afternoon]

The sales director at Morgan Stanley is Michael Chen, a native of Guangdong. He studied financial engineering in New York and worked in China for six years.

The client he had arranged to meet that afternoon was the chief financial officer of a large refining and chemical company in southern China, surnamed Wu.

Chief Financial Officer Wu is in his fifties and is an old-timer in finance who has been around since the planned economy era. He can calculate faster with an abacus than with a computer, but his understanding of the term "options" is limited to the literal meaning of "choosing whether or not to buy".

Michael laid the proposal out in front of him. The cover had Morgan Stanley's dark blue logo, with four large words below: Tailor-made.

"Mr. Wu, as you can see, our plan is very simple."

Michael turned to the most important page, which was a line graph with time on the horizontal axis and oil price on the vertical axis. A smooth curve extending to the upper right was drawn in the middle, with a dashed line on each side of the curve.

"The line above is your protection limit, $130. If gas prices exceed $130, we will cover the excess. Your fuel costs will never exceed $130."

"Moreover, this is a premium offer that Goldman Sachs provides to distinguished clients like yourself—at an extremely low cost."

Mr. Wu nodded, looking very satisfied.

"The line below represents $80."

Michael's fingers lightly traced the dotted line below, his tone flat and fluent, as if he were introducing a technical detail that was hardly worth mentioning.

"If oil prices fall below $80, the contract will enter an adjustment mechanism. But Mr. Wu, oil prices are currently above $110, so in this scenario..."

He paused for a moment, then smiled.

"In the words of our risk control model, this falls under the category of extremely low probability tail risk."

"What is tail risk?" Mr. Wu asked.

"It's... a situation that's almost impossible."

Michael smiled, appearing completely sincere.

"A drop of tens of dollars in oil prices is probably an extremely rare occurrence, typical of a global economic recession."

Mr. Wu nodded thoughtfully.

Now I understand.

He didn't turn to page 47 of the contract. That page, written in dense small print, stated the "Price Floor Trigger Clause"—if the oil price fell below $80, the contract would not automatically terminate but would continue to be executed with double the notional principal, and the company's liability for compensation would increase exponentially.

Mr. Wu did not look at it.

Because only professionals would actively turn to that page.

Moreover, the header of that page clearly read "Page 47 of the Contract".

They didn't hide it. It was right there.

Morgan Stanley never hides anything.

They just put it on page 47.