20 C.F.R. § 418.1210
What is not a major life-changing event?
We will not consider events other than those described in § 418.1205 to be major life-changing events. Certain types of events are not considered major life-changing events for the purposes of this subpart, such as:
(a) Events that affect your expenses, but not your income; or
(b) Events that result in the loss of dividend income because of the ordinary risk of investment.