Rev. Date August 23, 2019
What is the purpose of Scenario Analysis?
We designed Scenario Analysis to help subscribers estimate how portfolios and investments could react to certain market shocks.
Which scenarios are available?
Scenario Analysis allows users to stress test portfolios and investments across various types of scenarios, such as:
- Equity market performance. For example, estimate what could happen to a portfolio or investment if certain equity indices decline by a specified amount.
- Emerging currency changes. For example, estimate what could happen to a portfolio or investment if emerging currencies lose a specific amount.
How do I create a new scenario?
Scenario Analysis comes pre-populated with several scenarios. However, a user can add a new scenario by clicking “Add another scenario...,” searching among the available scenarios, and entering a return for the scenario in the “Scenario Return” column.
In order to change an existing scenario, simply change the value in the Scenario Return column, and the Estimated Return of the portfolio or investment will update.
What is the time horizon for the scenarios?
Scenario Analysis assumes the shock will occur over the next 30 days.
Why are the Scenario Returns range bound?
Scenario Analysis is currently designed to target shocks that we believe are not particularly extreme. Therefore, it currently only allows users to input a Scenario Return that is between +/- 2 standard deviations of the index’s returns historically (to the extent of the data available in Venn). Because the current methodology for Scenario Analysis does not account for considerations such as non-normal distributions or drastic changes in risk factor correlations, we believe it would not be prudent to go beyond 2 standard deviations.
What is the Estimated Return?
The Estimated Return is the estimated return of the portfolio or investment over the next 30 days, under the specified scenario. This number is an estimate only and carries many uncertainties such as noise in estimating the portfolio’s or investment’s factor exposures. The error bands attempt to quantify this uncertainty.
Generally, how is the Estimated Return calculated?
Venn calculates the sensitivity of the scenario index’s returns as well as the portfolio’s or investment’s returns to the factors in the Two Sigma Factor Lens. By translating each return into the shared language of factor exposures, Venn can then estimate how a shock to one (here, the scenario index) would affect the other (the portfolio or investment).
What returns are used to determine the portfolio’s or investment’s factor exposures?
The portfolio’s or investment’s factor exposures are calculated using the last 3 years of available returns data for the portfolio or investment.
How does Venn handle the portfolio’s or investment’s residual return?
Scenario Analysis explicitly measures the scenario’s impact on the portfolio’s or investment’s residual return.
 The minimum amount of data required depends on data frequency. For example, if a user’s portfolio or investment has quarterly data, Venn requires 9 years (or 36 data points) to run analysis.
This document highlights certain aspects of this analytic. As an overview, it does not discuss all material facts or assumptions. Please see Important Disclosure and Disclaimer Information.