# Random Walk

*Quant & Pricing — Finicade finance glossary*

A path where each step is random and independent of the last, so the best forecast of tomorrow is simply today. It's the simple picture behind 'you can't predict the market' and the seed of Brownian motion.

**Related terms:** [Brownian Motion](https://finicade.com/glossary/brownian-motion), [Market Efficiency](https://finicade.com/glossary/market-efficiency), [Martingale](https://finicade.com/glossary/martingale)

**Taught in:** Math Masters — Brownian Motion & Itō's Lemma

Source: https://finicade.com/glossary/random-walk