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The default setting for the MACD is fast-moving average of 12, a slow average of 26 and a signal line of 9, noted as 12-26-9. However, you can change them to anything you wish. Gerald Appel, the man who created the MACD, suggests two different settings on a daily chart. A setting of 8-17-9 may provide good entry signals, while you instead follow a 12-25-9 MACD for selling signals. Other well-known traders propose different values for these parameters. It is highly personal and based on the type of trading that most satisfies you.