This is known as a 'resistance level'.
A 'resistance level' is a crucial concept in finance, depicted on a chart as a horizontal line where rising prices have reached a plateau before either moving sideways or reversing direction. It signifies a point where buyers are unwilling to pay higher prices, leading to resistance against further price increases. This level is determined by market forces and is an important indicator for traders and investors to make informed decisions. Understanding this concept can help you navigate the dynamic world of finance with greater clarity and success.