Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, ...

MACD uses 26-day and 12-day EMAs to signal buy/sell based on stock momentum. Buy when MACD line crosses above the signal line; sell when it falls below. MACD is effective in trending markets but less ...