Let's delve into the concept of market behavior, developed by the renowned Charles Dow. This approach categorizes price movements into three distinct trends: major, intermediate, and minor. The duration of these trends can range from months to years, weeks to months, and days to weeks, respectively. A key principle of this theory is the mutual confirmation of moves by both the Industrial Average and the Transportation Average. In simpler terms, a significant price move in one average must be supported by a similar move in the other. It is through this action that the theory generates signals for investors.
