Stock market strategies are methods investors use to make decisions about buying and selling stocks. Common strategies include buy and hold, where investors purchase stocks and keep them for a long time, and day trading, which involves buying and selling stocks within the same day to capitalize on short-term price movements. Another popular approach is value investing, where investors look for undervalued stocks that they believe will increase in price over time. Conversely, growth investing focuses on companies expected to grow at an above-average rate, even if their current stock prices seem high. Each strategy has its own risks and rewards.