Negative events mean the presence of recent protests (on checks, bills or drafts) or detrimental to serious conservators (such as judicial mortgages and foreclosures) and less serious (such as legal mortgage, tax collection foreclosure, seizure, etc.) or insolvency proceedings (such as bankruptcies) or crisis events on the subject itself and on related subjects.

The effect that each negative event produces on the company's valuation depends on multiple factors such as the type of event, the subject on which the event is recorded (the company itself) or the type of connection with its characteristics (its representatives with the type of office, its subsidiaries with the share), the frequency of the events, the relevance of the same, the amounts, etc.