Volatility

The Volatility summary statistic (sum-stat) is calculated as Standard Deviation ÷ Forecast Level.

The Standard Deviation and Forecast Level values are calculated by the forecast engine and generated as engine outputs. This sum-stat is calculated whenever the system forecast is regenerated for the applicable forecast level.

The sum-stat is calculated for the tactical and strategic forecast levels and is displayed on the Details tab of the Information panel, with these codes:

• Volatility - Tactical: VLTT
• Volatility - Strategic: VLTS

You can use the Lucene query to search for a range of sum-stats in the Selection panel. For example, if you specify the "sum_stats.VLTS:[0.10 TO 0.35]" query in a search, PEs or APEs with VLTS sum-stat values within the range of 0.1 and 0.35 are displayed in the Selection panel.