DEFINITION of 'Stochastic Modeling'
A method of financial modeling in which one or more variables within the model are random. Stochastic modeling is for the purpose of estimating the probability of outcomes within a forecast to predict what conditions might be like under different situations. The random variables are usually constrained by historical data, such as past market returns.
INVESTOPEDIA EXPLAINS 'Stochastic Modeling'
The Monte Carlo Simulation is an example of a stochastic model used in finance. When used in portfolio evaluation, multiple simulations of the performance of the portfolio are done based on the probability distributions of the individual stock returns. A statistical analysis of the results can then help determine the probability that the portfolio will provide the desired performance.

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What is the difference between fast and slow stochastics in technical analysis?
The main difference between fast and slow stochastics is summed up in one word: sensitivity. The fast stochastic is more ... Read Full Answer >> 
What are some of the more common types of regressions investors can use?
The most common types of regression an investor can use are linear regressions and multiple linear regressions. Regressions ... Read Full Answer >> 
What types of assets produce negative portfolio variance?
Assets that have a negative correlation with each other produce negative portfolio variance. Variance is one measure of the ... Read Full Answer >> 
When is it better to use systematic over simple random sampling?
Under simple random sampling, a sample of items is chosen randomly from a population, and each item has an equal probability ... Read Full Answer >> 
What are some common financial sampling methods?
There are two areas in finance where sampling is very important: hypothesis testing and auditing. The type of sampling methods ... Read Full Answer >> 
How can I measure portfolio variance?
Portfolio variance measures the dispersion of returns of a portfolio. It is calculated using the standard deviation of each ... Read Full Answer >>

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