This pattern is known as a "blow-off top" or a "blow-off bottom".
In the world of finance, there exists a phenomenon known as a chart pattern. It is a visual representation of market movements, and among these patterns lies one that stands out - the "blow-off top" or "blow-off bottom". It is characterized by a sudden and significant rise or fall, followed by an equally dramatic reversal in the opposite direction. This pattern can provide valuable insights into market behavior and is a crucial concept in understanding financial trends.