It can sometimes seem like your credit score fluctuates up or down even if you seemingly haven’t done anything to influence it.
Sometimes your score does change based on factors out of your control. For example, there are different scoring models for calculating your credit score based on your financial information. It is common to see differences in scores from one model to the next.
However, if you see a big drop in your score, it is usually triggered by something specific. Most times your behaviour influences your score in ways that may not be obvious.