Around noon, still at my studio, I got the text. 'Got ten minutes?' A request framed in ten minutes is never about ten minutes. That phrasing is a unit of measurement — it quantifies how much pride a person is willing to temporarily suspend. I said I was free in the afternoon. He said what about now. That settled it: margin call.
What makes the story interesting is the biographical footnote. He works at one of the more respected investment houses in China and passed CFA Level 3 at a pace most candidates consider medically inadvisable. Pedigree, in other words. And out of the entire periodic table of options strategies — spreads, collars, straddles, iron condors, instruments engineered specifically to cap the downside — he had selected the naked short call. A triple-leveraged semiconductor ETF in May 2026 (You heard it right). Strike at $230, entered when the underlying was at $160, now sitting $2 from expiry with the position partially liquidated by IBKR before he even picked up the phone.
I told him he was calling the right person. Not because I had wisdom. Because I had made the identical mistake, at roughly the same portfolio size, for roughly the same loss percentage, and done it with the same confidence that I had identified the structural ceiling of a trend. The year was 2017 or 2018. New York. I had opened my first brokerage account within weeks of moving there — Manhattan has a particular atmospheric quality, a compound of the metallic draft from the F-train vents, the dry-aged fat drifting from Eleven Madison Park, and the hot diesel exhaust of an idling Lincoln Navigator that activates something primal about capital accumulation. I put $10,000 in, bought Apple without deliberation, and watched the liquidation value tick up $20 the instant the order cleared.
Twenty dollars. The number is important. It was large enough to feel like proof and small enough to feel effortless, which is precisely the most dangerous ratio a first trade can produce. I started calculating what $100,000 would have done. Then a million. Within weeks I was depositing more, day-trading through class on a laptop, convinced I had discovered an asymmetry the market had somehow overlooked. Earning money early in your investing life is a catastrophic event. It is the market's way of recruiting you for a longer, more expensive lesson.
Over the next two or three years I rotated through the standard curriculum: equities, FX, CFDs, and eventually options, which I gravitated toward because options carry a certain vocabulary — Greeks, implied volatility, term structure — that functions socially as a credential. I read the books. I followed the news. I did everything the literature says not to do while believing I was doing everything it recommends. The conclusion was simple and it arrived in the form of a number below zero.
I have not traded since, not out of fear but out of the particular boredom that follows real understanding. The actual architecture of investing, stripped of its mysticism, is almost insultingly plain: form a view, select an instrument calibrated to that view's time horizon and risk profile, define your exit at both ends before you enter, and then execute without negotiation when the price reaches either boundary. That's the entire structure. Everything else — the news cycles, the earnings calls, the macro narratives — is information that is available to everyone and therefore, by definition, already priced in. The edge, if one exists, lives entirely in the execution of the exit. Not the analysis. The exit. The moment when the position has moved against you and every cognitive system you possess is generating reasons why this time the rule doesn't apply.
I told him I had been on the floors. Friends from business school walked me through. What separates the profitable traders at serious funds from retail participants is not analytical superiority — it is that professional traders have externalized their emotional responses into documented procedures. The stops are not a guideline. The risk manager is not a suggestion. The system is designed to act in the absence of the trader's judgment precisely because the trader's judgment, at the moment of maximum stress, is the least reliable instrument in the room. Even then, you still read about a blowup once or twice a year.
I told him this was correctly sized damage. Too small and it teaches nothing. Too large and it forecloses the future. This one was calibrated to cause exactly enough pain to produce a phone call to a friend rather than a request for money. That is a good outcome, structurally speaking.
I told him he would probably do it again. Not as an insult but as a probabilistic statement. Understanding a rule and obeying it in real time under conditions of financial duress are two entirely different cognitive operations. Most people, in the middle of a position moving against them, can recite the correct rule with perfect accuracy while simultaneously doing the opposite. The knowing and the doing are not connected by default. They have to be wired together through repetition, documentation, and loss — specifically, the particular quality of loss that arrives with enough force to become a narrative you tell yourself before you sleep.
So I told him to write it down. Not a postmortem. Not a structured reflection. Everything — the feeling when the underlying crossed $220, the specific texture of checking the account balance, the moment he decided to call. Unfiltered and in order. And then to make the writing a daily practice of at least an hour.
Before I started writing regularly I assumed I had nothing to say. Now the problem is insufficient time. And I notice that I return to the same subjects repeatedly, arriving at variations that are not simply paraphrase — each pass through familiar material produces a new angle of incidence, a different load-bearing sentence. Writing does two things simultaneously and people tend to credit only one of them: it generates new thought, yes, but it also concretizes existing thought into a form you can examine from the outside, read aloud, disagree with, revise. It makes the interior auditable. That is how incremental growth actually works — not revelation, but iteration. Small loops, tightening.
After we hung up I ordered him a copy of Siddhartha. Not because it is an investing book. Because Siddhartha spends the first half of his life acquiring frameworks and the second half learning that the frameworks were never the point. He eventually becomes, among other things, a successful merchant — and then gives that up too, once he understands what the river was trying to tell him the whole time. The market will keep offering the same lesson until the student stops needing it. The book is just a more efficient delivery mechanism than another margin call.