English to German Bus/Financial Investment / Securities Short-term Reversal

Es geht in meinem Text um Short-Term Reversal:

Essentially, with short-term reversal, you’re identifying buy or sell actions that aren’t linked to relevant news. For instance, if a company’s stock price rises significantly on an earnings announcement day, there’s typically no short-term reversal. It continues to rise. The same holds if the company’s industry or other relevant news supports the price movement. To predict a short-term reversal, you have to analyze a price movement against all available information. If there’s still a large ***residual*** – after accounting for all known factors – no reversal is expected.

Ich stehe hier völlig auf dem Schlauch, was mit ***residual*** gemeint sein könnte. Who may help?