Moving Averages help smooth out the fluctuations. (they come in Simple, as above, or Exponential flavour if you are exotic.) Whichever, you can see the trend over any time frame you are interested in. (So you need to know what time horizon you have depending on what type of investor you are.) in general, when a shorter time period MA golden crosses above a longer one, that's bullish. When it death crosses under it, that's bearish. If you want a visual method of detecting confirmed changes in sentiment, it's as good as any.
MML Price at posting:
69.0¢ Sentiment: Buy Disclosure: Held