A laid-off Jane Street quant reportedly made $917,000 on Polymarket in one day using a free open-source AI model
He had spent 11 years leading quant work before losing a $412K job after one weak quarter
Months later, he built a trading loop around Kimi K3 and rented GPU compute instead of joining another fund
The key was not a more complicated strategy
K3 could reportedly hold huge amounts of context at once, including trading logs, 5-minute BTC candles and historical backtests
That let the agent run a tight loop: trade, check the result, adjust the rules, then run again
On the first night, it reportedly completed 917 iterations
The interesting part is the contrast
Large funds spend heavily on private models, infrastructure and approval layers. One quant with rented compute and an open-source model can iterate far faster
He was not trying to beat Jane Street with a smarter model
He was trying to beat them with a faster system
Ken Griffin described the part of agentic AI that should worry every quant fund
A researcher can spend weeks finding one hypothesis, coding it, backtesting it, and deciding whether it survives. An agentic system can compress most of that loop into hours
The real advantage is not one better strategy
It is continuous strategy discovery
One agent scans markets for anomalies. Another turns the strongest signals into hypotheses. A separate backtest agent tests them, then a validation layer kills anything that does not clear the thresholds
The system keeps producing new candidates while old edges decay
That is the part traditional quant teams spend millions building around their researchers
The missing piece is memory
If every failed strategy disappears into a log file, the next agent can waste time rediscovering the same dead idea. A real research system should preserve what failed, why it failed, and which market regime killed it
The video shows why agentic research changes the economics of quant work
The article below breaks down the full continuous strategy discovery stack, including parallel market scanning, hypothesis generation, backtesting, validation, deployment, risk controls, and the agent architecture that keeps the loop running
Sep 11, 2026 · 4:09 PM UTC
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