Ornstein Uhlenbeck Process
The Ornstein Uhlenbeck process is a stochastic differential equation that describes a mean-reverting process, where the variable is pulled toward a long-term average over time. In financial modeling, it is the standard tool for simulating interest rates, volatility, and basis spreads that exhibit a tendency to stay within a certain range.
Unlike a random walk, the Ornstein Uhlenbeck process has a memory of its mean, making it ideal for modeling assets that are constrained by economic or structural forces. For crypto traders, this is vital for identifying when a funding rate or a price spread has reached an extreme and is likely to revert.
By estimating the speed of mean reversion, traders can time their entries and exits with greater precision. It is a foundational tool for any strategy that relies on the stability of relationships between different financial instruments.