How a trader in his pajamas nearly broke the stock market
By Lantern Finance
28 Aug 2025
Hey Lantern Community!
There's a reason we give you 72 hours during margin calls instead of liquidating immediately.
A 36-year-old guy named Navinder Singh Sarao, working from his parents' suburban London home, nearly broke the trillion-dollar U.S. stock market.
With trading software from his bedroom.
But first, market update!
The slingshot that toppled a skyscraper
May 6, 2010. 2:32 PM Eastern Time.
Navinder placed $200 million worth of fake sell orders that he planned to cancel. Just another day of "spoofing" the market from his bedroom.
36 minutes later, $1 trillion in market value had vanished.
The Dow Jones plummeted 998 points in minutes. Blue-chip stocks like Procter & Gamble fell 37% in seconds. Some stocks traded for a penny.
All because one guy in pajamas gamed the system.
How the dominoes fell
Navinder's fake orders triggered algorithmic trading systems across Wall Street. High-frequency traders, designed to detect patterns and react instantly, saw his massive sell orders and started dumping positions.
The "Hot Potato Effect" kicked in:
HFT firms bought contracts, then immediately tried to sell them
In just 14 seconds, they passed the same positions back and forth 27,000 times
Each trade made the market more unstable
Eventually, everyone dropped their positions simultaneously
The result? Financial chaos that lasted 36 minutes.
The aftermath
Here's what's wild: the crash recovered almost as fast as it fell.
Most losses recovered in 20 minutes.
Why? Because it wasn't based on economic fundamentals. It was pure algorithmic panic—computers selling to other computers in an endless feedback loop.
But imagine if you were leveraged during those 36 minutes. Imagine if your crypto lending platform had auto-liquidated your Bitcoin because one guy pressed a few too many buttons.
The flash crash shows why markets are unpredictable
One person can move trillion-dollar markets
Algorithms amplify small disturbances into massive chaos
"Impossible" price movements happen regularly
Recovery can be just as sudden as the crash
Platforms auto-liquidate based on price.
This is exactly why most crypto lending platforms are dangerous for borrowers.
The Lantern difference: We give you time
At Lantern, we learned from the 2010 Flash Crash.
Markets can move in completely unexpected ways. Algorithms can panic. Flash crashes can wipe out positions that would have been profitable minutes later.
That's why we built in protections:
72-hour margin call window
- You get three full days to respond, not three seconds
No auto-liquidation
- We never sell your crypto without working with you first
No liquidation fees
- We don't profit from your bad days
Human oversight
- Real people review every margin situation
We're aligned with your success, not your liquidation.
Sometimes markets move in mysterious ways. We're here to make sure you survive them.
Until next time,
The Lantern Team
This newsletter is for educational purposes only and does not constitute financial advice. Always consult with your financial advisor before making lending decisions.
