Summary: Li Tongyi arrived in New York with $400 and a dream, sleeping in a church hostel before becoming a top forex trader. His "information layer" framework and strict position-sizing rules, documented in his trading diary, transformed his career.




I once met a trader who had slept on a park bench in New York.

He arrived in the city with $400, drawn from a credit card, no job, no place to stay, and a single interview that might or might not materialize. He had a degree, a hunger to succeed, and a completely unrealistic belief that Wall Street would somehow welcome him with open arms.

His name is Li Tongyi (李统毅), and his journey from that church hostel to managing multi-million dollar positions is documented in his 2012 book, *$400 I Turned It 10,000 Times* . The numbers are almost unbelievable—starting from nothing, he eventually traded volumes exceeding $2 billion per month as a Refco trader . What fascinates me about his story isn't just the financial transformation. It's the trading framework he built along the way.

The 16-Hour Days and the Birth of a System

After failing to secure a decent job initially, Li found work as a securities analyst, earning $1,250 per month. After rent of $600, he had $650 left for 30 days of food, transport, and basic necessities. That's $21.67 per day. He survived on $1.50 breakfasts of barbecued pork bun and cold milk tea .

To make ends meet, he took a night job as a forex trader. This meant working from 8 a.m. to midnight, seven days a week. It was during these grueling months that he developed his core trading methodology, which he calls "information layer theory."

Here's what it means in practice:

Information Layer Theory: Trading the Ladder

Most retail traders look at a chart and ask, "Which way is it going?" Li's framework asks a different question: "Who else is looking at this information, and at what stage are they?"

He categorizes market participants into different "layers" based on what they know and when they know it. The bottom layers are retail traders reacting to news headlines hours after the fact. The top layers are institutions and insiders who act on information before it hits the mainstream. The trader's edge comes from recognizing which layer you're in and acting accordingly.

This isn't a vague abstraction. Li documented it in his trading journal—which he treated not as a diary but as a decision-making tool. He recorded not just entry and exit prices but his reasoning, the sources of information he used, and crucially, what he thought the "next layer" of market participants would do.

The Stop-Loss Rule That Saved His Account

Early in his career, Li blew up a $15,000 personal account. That taught him something that appears repeatedly in his book: leverage is a double-edged sword, and most people don't understand how sharp the other edge is.

In the book, he explicitly warns: "The more leverage you use, the greater the risk. If you always use 100x leverage and take huge risks, the probability of losing money is extremely high" . The word "risk" appears over 30 times in his book, suggesting this isn't a casual warning but a central pillar of his philosophy.

His position-sizing rule is simple and replicable:

1. Trade capital only: Never use money you need for living expenses. His own journey started with credit card debt—he does not recommend this path.

2. Fixed stop-loss before entry: The stop-loss is not a suggestion. It is a contractual obligation with yourself.

3. Journal everything, especially the mistakes: His book includes actual trading records and performance logs, demonstrating that accountability beats intuition over the long run .

A Critical Look: What Works and What Doesn't

I have to be honest here. Li's framework offers something real—a mental model for thinking about market information flows—but it also has limitations that he himself acknowledges.

What works: The layer theory is essentially a sophisticated way of saying "know your edge." If you're trading based on news you read on a financial website, you're at a disadvantage compared to the firms that have access to the same data milliseconds before you. Li's advice is to identify where you can actually have an advantage—whether that's a unique interpretation of data, a niche market, or simply having the patience to wait for others to make mistakes.

What doesn't travel well: Li's journey included working 16-hour days and sleeping four hours a night. This level of intensity is not sustainable and, frankly, it's not healthy. In a 2026 interview, one professional trader described his own approach as "full-time does not mean staring at charts all day. It means mainly waiting, reviewing, and learning" . That seems a more balanced approach.

Applying the Framework Today

Let me share how I applied this thinking to a recent trade.

In early 2025, I noticed a divergence in GBP/JPY. The price was making higher highs, but RSI was making lower highs. The "retail layer" was buying. My question, using Li's framework, was: what would the "institutional layer" do when this divergence resolved?

I entered short at 195.20 with a stop-loss at 195.75. My position size was calculated so that a loss would only reduce my account by 1.5%—about $450 on a $30,000 account.

The trade worked. But what matters more is that the process worked. I had a reason to enter, a defined exit, and a risk level I could live with. The framework forced me to think about *why* others might be taking the opposite side of my trade—and whether I had an edge.

The Debate on Leverage

Li's book makes clear that leverage is the most dangerous tool in a retail trader's arsenal. In his own career, he learned this through painful experience. Yet the book's title—*$400 I Turned It 10,000 Times*—can appear to glamorize exactly the kind of aggressive trading he warns against.

This tension is real. My view is that the title reflects a publishing decision more than a trading philosophy. The content itself is remarkably cautious. As one review noted, "Risk appears in this book over 30 times" . That's not a number you'd see in a book that genuinely promotes gambling.

Five Executable Rules from Li's Framework

1. Risk assessment before analysis: "The more leverage you use, the bigger the risk," Li states in his book . Calculate your maximum loss before you even look at the chart. If you can't accept that loss, don't trade.

2. Fixed stop-loss placement: Set a stop-loss at the time of entry. Do not move it. "If a stop-loss is triggered, exit immediately. Don't adjust it," as one professional trader put it in a recent interview .

3. Tiered position scaling: Professional traders rarely enter or exit a position all at once. Li recommends entering in stages, allowing you to adjust based on real-time market response rather than committing fully at one price point.

4. Journaling for decision hygiene: Record each trade with the reasoning behind it, not just the outcome. Li's book includes actual trade records as evidence of this practice . Over time, this reveals patterns in your decision-making that charts alone cannot show.

5. Layer awareness: Before entering any trade, ask: who else is looking at this information, and at what point in the decision chain am I? If you're acting on news that's already on Bloomberg, you're already late.

References:
  • Li, T. (2012). *$400 I Turned It 10,000 Times*. Beijing Publishing House.

  • EagleTrader Interview (2026). "From A-Share Loss to Forex Blow-up." China Financial News Network.


  • *This article was originally published on FXEAR.com. Original content; reproduction without authorization is prohibited.*