Yesterday the GDX printed a rare and extremely bullish reversal candlestick:

Click to enlarge

GDX_8.27.2014

The conditions for this candlestick were as follows: 1. Price was in a short term downtrend heading into the trading session 2. Price gapped up 3. Price close above the previous day's high 4. Volume was higher than the previous day's volume

This is a very bullish recipe with a quick sampling of the past 15 months showing 4 examples of such candlesticks, all 4 examples led to significant rallies over the subsequent days/weeks:

GDX_bullish_kicker

The fact that yesterday's rare & bullish candlestick took place near the lower Bollinger band at an important support zone only adds weight to its significance.