Ryan Paisey was on a beach in the Cayman Islands when the phone rang.
On the line was the head of a major exchange, calling to congratulate him. They were upgrading their matching engine. To Ryan, a young trader who had quietly become one of Europe's biggest private traders in Henry Hub natural gas, the message underneath the good news was unmistakable. The loophole he had built a career on was about to close.
"I realised there and then that my edge had completely evaporated overnight."
A few days later he was back in London. Lights off.
That story sits at the centre of this episode of Fly on the Fund Wall, and it is the reason the episode is worth an hour of your time. Ryan has spent 23 years in the industry, and he has lived the full arc: the rise, the peak, and the moment the market quietly took the edge back.
He started with none of the usual credentials. No university, barely a single A-level, and a job as a runner just as the open-outcry floor was closing and screens were taking over. His description of it is vivid: barrow boys from the pit sat in front of computers for the first time, picking up the mouse and saying hello into it. He fetched the lunches and the laundry, but he also sat in the risk room watching P&Ls, stopping traders out, and reconciling trades with the exchange when the systems went down. It was, in his words, a baptism of fire, and it taught him every part of how a trading business actually works.
What shaped him most was watching people fail. He saw graduates arrive from finance degrees and roll over within months. He saw genuinely good traders change their style the moment life changed, a house, a mortgage, a family, and watch it all fall apart. And he learned the counter-intuitive danger of early success. He tells it through poker: the worst thing that can happen to a new trader is to win big on a bad hand. Win on rubbish and you build your confidence, and your position sizing, on a foundation of luck. The big loss arrives later, when you have the most money committed and the least reason to expect it.
The antidote he keeps returning to is the long game. He cites Roger Federer, who won almost 80% of his matches across a career but only 54% of the individual points. The edge is small, and it only shows up over a huge number of repetitions.
"Doing a thousand trades with a 5% edge is much better than doing three trades and getting lucky once."
It is the least glamorous idea in trading, and in his telling, the only one that survives contact with a real career.
Which brings the story back to that phone call. The single piece of advice Ryan would give his younger self is the one the Cayman beach taught him the hard way: as soon as you have an edge, start building the next one. No edge lasts forever. Someone else finds it, or the market structure shifts underneath it, and if you have nothing running behind it, you are left scrambling.
His scepticism extends to the way people prove their edges, too. He is wary of anyone showing off a backtest that stretches back decades, because the market of twenty years ago is not the market of today. Structure has changed, central banks intervene in ways they once did not, and a rising tide of passive money has altered the behaviour of prices. His own sweet spot for testing is around eight years, long enough to trust, recent enough to matter. A curve that looks glorious going back to the 1950s tells you very little about whether a strategy works now.
There is an anger that runs through the conversation too, and it is aimed at the noise. When Ryan stepped away from professional trading, he saw the retail side of the industry properly for the first time, and he was, in his words, shocked and disgusted. Snake oil everywhere you look. People selling signals and algos, which, as he points out, you are usually only selling because they do not work. Courses promising Lambo money on a 500 pound account. An industry, as he puts it, fishing for the next mug. He founded PIQ, an information terminal for retail traders, partly as an answer to it: give people the quality of information the professionals always had, and take some of the guesswork away.
Some of the sharpest moments in the conversation come when he takes apart the myths retail traders are sold about how markets work. The idea that the market is hunting your stops, searching out your tiny account to trigger it, he has no patience for. He spent years as a market maker himself, and the job, he explains, was to sit in a product quoting a fair two-sided price and, most of the time, deliberately not trade. If you got filled, it usually meant you were too slow or your price was wrong. The big players, he says plainly, are not watching your thousand-pound account. They have far bigger problems.
He is also honest about the cost. Trading took a real toll on his mental health toward the end, and he stepped away before COVID after a genuinely hard period. It is a lonely place when you are getting it wrong, he says, and almost nobody talks about the lows. That candour is rare, and it is the whole point of these conversations.
It is also why he is generous about what we are trying to build. What he values, he says, is that Darwinex Zero rewards longevity. You come along, you prove yourself over a duration, you show it is not one-trade-wonder luck, and then you get the backing. He is complimentary about the INDX that lets more than a handful of traders receive real capital, rather than two or three names holding almost all of it. And he makes a sharp point about how investors actually behave. They are sheepish, they follow proof, and the first person to receive an allocation, however small, is the one who gives everyone else the confidence to follow. He compares it to the wildebeest that jumps into the river first.
The record is the thing, in other words. Built slowly, proven publicly, and never resting on a single edge. It is the same argument we make in cold numbers every week, told here by someone who learned it on a trading floor, lost a career's worth of edge overnight, and came out the other side still convinced the long game is the only one worth playing.
The full episode of Fly on the Fund Wall with Ryan Paisey is live and ready to watch:
Thanks for watching,
Darwinex Zero
*Darwinex Zero and the domain www.darwinexzero.com are trade names used by Tradeslide Technologies, a company registered in the United Kingdom under number 14398381.
The contents of this blog post and video are for educational purposes only and should not be construed as financial and/or investment advice.