Divergence is a 'level' indicator and can be the sign of reversal or continuation.
We distinguish regular divergence, hidden divergence and exaggerated divergence.
Regular Divergence is a sign of trend reversal. Price keeps the trend but indicator already shows the reversal.
- Signal to short = regular divergence in tops. Price makes higher high but oscillator makes lower high. Underlying weakness, possible exhaustion at the end of a bull trend.
- Signal to long = regular divergence in bottoms. Price makes lower low but oscillator makes higher low. Underlying strength, possible bottoming in progress.
Hidden Divergence is a divergence that follows the trend. Hidden divs show the market is inclined to continue the current trend.
- Signal to short = hidden divergence in tops. Price makes lower highs but oscillator makes higher highs. Tends to be found on lower highs in a downtrend.
- Signal to long = hidden divergence in bottoms. Price makes higher low but oscillator makes lower low. Tends to be found during continuation pauses in an uptrend.
Exaggerated Divergence is only different in that price makes double top or double bottom rather than new high or new low.
Divergence itself is not a strong enough signal to trigger a trading decision about entry or exit.