Flash Boys Final Thoughts - Did Anything Actually Change on Wall Street?
So we made it. Thirteen posts covering every chapter of Flash Boys by Michael Lewis. And now the big question: did any of it matter?
What Flash Boys Got Right
The core argument of the book holds up. The US stock market was (and still is) structured in ways that give speed advantages to certain players. Brad Katsuyama wasn’t wrong when he said the market was rigged. The data backs it up.
High-frequency trading firms really were front-running orders. Dark pools really were designed to benefit banks at the expense of their own customers. And the SEC really was slow to do anything about it.
Lewis told this story through real people. Brad, Ronan, Sergey, Zoran. That’s what makes the book work. It’s not a dry policy paper. It’s a story about regular people who noticed something was broken and decided to fix it.
What Happened After the Book
Flash Boys came out in 2014 and it was like throwing a grenade into a room full of expensive suits.
IEX eventually got approved as a full stock exchange in 2016. That was a big deal. The SEC approved it despite massive lobbying against it from Nasdaq, NYSE, and the big HFT firms. Brad’s team actually pulled it off.
But here’s the honest truth. IEX never captured a huge share of the market. As of now it handles a small percentage of US stock trading. The speed bump idea worked, but the big exchanges adapted. They found new ways to make money from speed. The game evolved.
Sergey Aleynikov’s case dragged on for years. The federal conviction was overturned in 2012. Then New York State charged him again. He was convicted again in 2015, then that conviction was overturned too. The whole thing was a mess that showed how badly the legal system handles technology cases.
What the Book Missed
Lewis caught some criticism for oversimplifying things. Not all high-frequency trading is predatory. Some of it genuinely provides liquidity and tightens spreads. Market makers who happen to use fast computers aren’t automatically the bad guys.
The book also painted things pretty black and white. Brad as the hero, HFT as the villain. Reality is messier than that. Some HFT firms do useful things. Some of Brad’s arguments had holes. But the core point stands: the system was designed to benefit insiders at the expense of regular investors.
And honestly? That’s still true. The specific tricks have changed. But the basic dynamic hasn’t.
Why This Book Still Matters
I’ve read a lot of finance books. What makes Flash Boys different is that it’s about a system problem, not just bad people. The individuals in the story mostly thought they were doing their jobs. The HFT guys thought they were just being smart. The banks thought they were just competing. Even the exchanges thought they were just serving their customers.
But the system they built together was extracting billions from regular investors. Nobody planned it. It just happened. And that’s the scariest part.
This is a pattern you see everywhere. In tech. In healthcare. In real estate. Systems that start with good intentions slowly get captured by the people who figure out how to game them. Flash Boys is a case study in how that works.
My Personal Take
As someone who came from the former Soviet Union, Sergey Aleynikov’s story hit me hardest. Here’s a guy who left Russia because they wouldn’t let him study what he wanted. He came to America, worked hard, got good at programming. And then the system chewed him up anyway.
Not because he did something terrible. But because he was convenient. Goldman needed someone to blame, and he was right there. The FBI agent who arrested him used to be a currency trader who got replaced by computers. The prosecutors didn’t understand what code even was.
That’s not justice. That’s just power doing what power does.
Brad Katsuyama’s story is more hopeful. He saw something wrong and built something to fix it. IEX might not have taken over the world, but it proved that a fairer market was possible. Sometimes that’s enough.
Should You Read Flash Boys?
Yes. Even if you know nothing about finance. Even if you don’t care about stock markets. This is a story about how complex systems work, how they get corrupted, and what it takes to fight back. Michael Lewis writes it in a way that anyone can follow.
The book is from 2014 but the problems it describes haven’t gone away. If anything, they’ve gotten more sophisticated. Markets move faster now. The technology is more complex. The money is bigger.
But the basic question is the same one Brad asked: Is this fair?
And if the answer is no, what are you going to do about it?
The Full Series
If you missed any posts, here’s the complete list:
- Series Introduction
- Introduction - Windows on the World
- Chapter 1 - Hidden in Plain Sight
- Chapter 2 - Brad’s Problem
- Chapter 3 - Ronan’s Problem
- Chapter 4 - Tracking the Predator
- Chapter 5 - Putting a Face on HFT
- Chapter 6 - How to Take Billions from Wall Street
- Chapter 7 Part 1 - An Army of One
- Chapter 7 Part 2 - An Army of One Continued
- Chapter 8 - The Spider and the Fly
- Epilogue - Riding the Wall Street Trail
Thanks for reading along. If you want to grab the book yourself, it’s “Flash Boys: A Wall Street Revolt” by Michael Lewis (ISBN: 978-0393244663).
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