QuantMaxxing on Instagram: "Brownian motion is used in quantitative research as a mathematical foundation for modeling randomness and uncertainty in time-evolving systems, most notably financial markets. In finance, asset prices, interest rates, and volatility are often modeled as stochastic processes driven by Brownian motion, allowing researchers to describe continuous, random fluctuations using probabilistic laws. This framework underpins models such as geometric Brownian motion, stochastic v