The stock market is closed on Good Friday primarily due to historical tradition and cultural reasons rather than a government mandate. Although Good Friday is not a federal holiday in the United States, the New York Stock Exchange (NYSE), Nasdaq, and other U.S. financial markets observe this day as a holiday. This tradition dates back to at least the late 19th century and aligns with the Christian observance of Easter, a time when many traders and investors take the day off. Additionally, trading volume on Good Friday tends to be very low as many market participants are away for the holiday, leading to reduced liquidity. Low liquidity can cause greater volatility, which exchanges seek to avoid by closing the markets. The closure also mirrors global market behavior, as many major stock exchanges in other countries are closed for Good Friday, creating a synchronized break in trading worldwide. In essence, the market closure on Good Friday is a blend of honoring cultural and religious traditions, practical considerations about liquidity and orderly trading, and long-standing market customs.