Traditionally, markets operate on weekdays, typically Monday through Friday. However, holidays and closures can affect trading schedules. In the United States, for example, the New York Stock Exchange (NYSE) and NASDAQ observe various holidays, such as New Year's Day, Independence Day, Thanksgiving, and Christmas, during which trading is suspended. Additionally, there are early closure days, such as the day after Thanksgiving, when trading ends early.

On average, there are approximately 252 to 253 trading days in a year for the major stock exchanges worldwide. This number can vary slightly depending on the specific holidays observed by each exchange and any special circumstances that may arise.

Understanding the number of trading days in a year is essential for investors and traders to plan their strategies effectively. It helps them anticipate market movements, allocate resources, and manage risk.

In summary, while the exact count may fluctuate slightly, knowing the approximate number of trading days in a year provides a valuable framework for navigating the financial markets with confidence and clarity.