Double Tops & Double Bottoms
Double Tops do not only provide technical traders with a firm indication of a beginning downward trend; they also prove that price movement is not random, but rather is a clear indication of market sentiment. Double Tops occur when a new high is plotted, raising the resistance level. The price then retraces and declines, only to rise again and reach the same high or resistance level.

As can be seen in the image above Double Tops can be thought of as true market sentiment. Traders around the globe push the price to a new high; because the new high is a tad extreme the price is subsequently brought back down. Again traders push up to the same level, testing it just one more time; again the price feels too extreme. The market has decided that an upwards trend is just not in the cards, twice a new high was tested and twice the market sold to push it back down. After noticing a Double Top a trader is very safe to assume that for the time being the market will move in a downwards trend, thus affording an opportunity to sell, or exit a soon to be falling long position.
Of course, Double Bottoms are just the opposite of Double Tops. Twice the market will test a new low, and twice the market will refuse the idea of pushing beyond that point. The buyers will rally and an uptrend will follow.

There are three types of triangles that technical traders focus on:

1. Ascending Triangle
2. Descending Triangle
3. Symmetrical Triangle

Ascending triangles
Are considered bullish pattern formations, though depending on whether they are formed during an up-trend or a down-trend they may have different implications towards future price movement. Spotted within an up-trend an ascending triangle is typically considered an indication that the upwards trend will continue. Just the opposite, if an ascending triangle forms during a downwards trend it is considered an indication of a trend reversal. Essentially, ascending triangles are comprised of a series of candles that, in accordance with the pattern’s name, form the shape of a triangle. The term ascending triangle refers to the fact that the triangle’s two trend lines are not created equally; the top line of the triangle will represent a fairly even level of high prices, while the lower level of the triangle will represent a continued series of higher lows. The consolidation between buyers and sellers at an upward slant suggests pressure from the buyers. The resistance line can typically only hold for so long before the buyers get the best of the sellers and the price breaks out in an upwards trend, at which point the resistance level often becomes the new support level; or for a seasoned trader, a wise level to place a stop loss. The image below shows an example of an ascending triangle. As can be seen, it is generally safe to assume that the triangle will break out at least five candles before the actual point of the triangle would form.

Descending triangles
Naturally, are just the opposite of ascending triangles. In a downwards trend the triangle forms as an indication that the trend will continue downwards. In an upwards trend the triangle forms as an indication of a trend reversal. Descending triangles are formed when there is a series of progressively lower highs and relatively even lows. As can be seen in the image below the top line or resistance line of the triangle will be angled down, while the lower line or support level will appear as a level horizontal line