The Most Important Lesson I Learned on Wall Street
My first job, if you don't count being a busboy at Patricia's Italian Restaurant in Randolph, New Jersey, was working as a summer intern for a legendary trader named Mark Fisher in the New York Mercantile Exchange in the World Trade Center. My job as a crude oil and natural gas runner was to run into the pit, grab a ticket from a trader, and run out of it and get the order entered into a computer. Occasionally, a young trader who worked for Fish, we'll call him Tommy, would come by and hang out with me on the side, and I'd catch a gleam of his gold AP watch. He was in his early 20s, and I wanted to be just like him.
Now, off the trading floor upstairs at lunch, Fish would come into a large auditorium and teach us a few things about trading. He'd pour an entire bag of chips on his sandwich before eating it, which makes sense for a guy worth about $100 million. Fish taught me that protecting what you've got is always more important than making more. A few days later, I noticed Tommy wasn't on the trading floor.
Fish had zero tolerance for going above your wrist threshold. Tommy took a far too big bet that went sideways when bearish crude oil data came out. It ruined him financially then, and he lost his chance to ever earn like that again. I lost a lot of friends that way in those days, and I still do.
The Most Important Lesson I Learned on Wall Street
My first job, if you don't count being a busboy at Patricia's Italian Restaurant in Randolph, New Jersey, was working as a summer intern for a legendary trader named Mark Fisher in the New York Mercantile Exchange in the World Trade Center. My job as a crude oil and natural gas runner was to run into the pit, grab a ticket from a trader, and run out of it and get the order entered into a computer. Occasionally, a young trader who worked for Fish, we'll call him Tommy, would come by and hang out with me on the side, and I'd catch a gleam of his gold AP watch. He was in his early 20s, and I wanted to be just like him.
Now, off the trading floor upstairs at lunch, Fish would come into a large auditorium and teach us a few things about trading. He'd pour an entire bag of chips on his sandwich before eating it, which makes sense for a guy worth about $100 million. Fish taught me that protecting what you've got is always more important than making more. A few days later, I noticed Tommy wasn't on the trading floor.
Fish had zero tolerance for going above your wrist threshold. Tommy took a far too big bet that went sideways when bearish crude oil data came out. It ruined him financially then, and he lost his chance to ever earn like that again. I lost a lot of friends that way in those days, and I still do.

In this compelling and nostalgic TikTok, Nicholas Crown takes viewers back to the very start of his career — a summer internship at the New York Mercantile Exchange in the World Trade Center. Through a vivid personal story involving a legendary trader named Mark Fisher and a young risk-taker named “Tommy,” Crown delivers a timeless lesson: protecting your capital is more important than chasing more of it.
The story is cinematic. Crown paints a picture of a chaotic yet exciting trading floor, his admiration for a gold-watch-wearing young trader, and the gravity of what happens when risk isn't respected. When Tommy makes a reckless bet on crude oil and loses, his entire future in trading vanishes. It’s not just a financial loss — it’s a lost identity, lost opportunity, and a permanent detour from a life path. This narrative arc gives the video emotional weight and authenticity that makes it hard to forget.
This video resonates so strongly and went viral because it combines real-world stakes with a deeply human story. Crown’s delivery isn’t flashy — it’s reflective, grounded, and relatable. He doesn’t just talk numbers; he talks about ambition, ego, loss, and the fragility of opportunity. The lesson isn’t a theoretical one about risk management — it’s a lived experience, and that lands harder with viewers who are either new to finance or jaded by hustle culture.
Moreover, the storytelling format makes the message stick. Viewers are pulled in by the imagery — the World Trade Center, the floor of the NYMEX, the chips-on-a-sandwich anecdote — and stay for the moral: taking a big swing too early, or without a safety net, can cost you everything. It’s a powerful reminder that flashy success often comes with invisible risks, and not all stories of early wealth end in victory.
In summary, this TikTok succeeds because it delivers wisdom wrapped in narrative, with a clear emotional throughline and a cautionary tale that challenges the reckless optimism so often promoted in online finance spaces. Crown reminds us that longevity in wealth-building comes not from boldness alone, but from knowing when to hold back.
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