This example uses the US insider trading dataset, which was also used in the dashboard demonstration
. Here, we demonstrate how Tuhunga can be used to alert the user when new results meet the criteria, as opposed to all results matching the criteria.
If you've ever had to look through long lists of results in an effort to find the new items, you'll appreciate the value of this feature.
The filter criteria for this alert requires total officer purchases for a given company to be at least $250,000 over the prior three weeks.
This alert was sent directly to the user via email.
The alert shows three Tesoro Logistics purchases, which individually do not meet the criteria but, when aggregated over the two different purchasers and two different days, may indicate an important trend.
The alert also shows a Valhi purchase that does not meet the $250,000 level but, when combined with other Valhi purchases over the prior three weeks, continues to meet the criteria for significance, as seen in the rightmost column.
The earlier Valhi purchases were shown in prior alerts, and do not appear here. If desired, however, it is easy to configure this option.