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Technical
How Quants Model Unpredictability in Markets. An Introduction to Geometric Brownian Motion

The Law of Large Numbers shows why small backtests deceive traders. Short-term results are unreliable due to noise, and extensive testing is essential.

Written by
Tsvetomir Novak
3/18/2026
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Events
Inside the Mind of a Market Maker

Vincent Vis, options trader and former market maker at Optiver and IMC Trading, broke down how markets actually work in practice — from trading philosophies and risk management to volatility and the moments when models break down, at AQS's recent Options Deep Dive event.

Written by
Zoya Gorokhova
3/18/2026
News Cover
Technical
How small backtests deceive traders: The Law of Large Numbers

The Law of Large Numbers shows why small backtests deceive traders. Short-term results are unreliable due to noise, and extensive testing is essential.

Written by
Tsvetomir Novak
2/15/2026
News Cover
Events
What Quant Finance Really Looks Like

Sumit Sourabh, Director and xVA Quant Trader at ING, broke down what quant finance really looks like, from daily realities and career paths to hiring advice, at AQS's recent event.

Written by
Zoya Gorokhova
2/12/2026