Windows as they are called in Japanese Candlestick Charting, or Gaps, as they are called in the west, are an important concept in technical analysis.
Whenever, there is a gap (current open is not the same as prior closing price), that means that no price and no volume transacted hands between the gap.
A Gap Up occurs when the open of Day 2 is greater than the close of Day 1.
Contrastly, a Gap Down occurs when the open of Day 2 is less than the close of Day 1.
There is much psychology behind gaps. Gaps can act as:
- Resistance: Once price gaps downward, the gap can act as resistance.
- Support: When prices gap upwards, the gap can act as support to prices in the future.
Windows Example – Gaps as Support and Resistance
The chart below of eBay (EBAY) stock shows the gap up acting as support for prices.
Often after a gap, prices will do what is referred to as “fill the gap”. This occurs quite often. Think of a gap as a hole in the price chart that needs to be filled back in.
Another occurrence with gaps is that once gaps are filled, the gap tends to reverse direction and continue its way in the direction of the gap (for example, in the chart above of eBay, back upwards).
The example of eBay (EBAY) above shows the gap acting as support. Traders and investors see anything below the gap as an area of no return, after all, there was probably some positive news that sparked the gap up and might still be in play for the company.
The chart below of Wal-Mart (WMT) stock shows many instances of gaps up and gaps down. Notice how gaps down can act as areas of resistance and gaps up can act as areas of support:
Gaps are important areas on a chart that can help a technical analysis trader better find areas of support or resistance. For more information on how support and resistance work, (see: Support & Resistance).
Also, Gaps are an important part of most Candlestick Charting patterns; (see: Candlestick Basics) for a list of candlestick pattern charts and descriptions.
How to Start Technical Trading
If you are interested in trading stocks & commodities using technical analysis, have a look at our reviews of these regulated brokers available in to learn which charting & analysis tools they offer:
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