The Currency Strength Index can be used as a way to trade a specific pair.
The calculator that is on this site would be great for a trade that is going to last longer than a day or a week. By charting the information taken from the calculator, you can see a trend in STRENGTHS of currencies.
In an ideal situation:
For example; If one currency has been gaining momentum for 3 weeks, it probably will continue to hold that pace (baring any outside influences). Pair that against a currency that has been loosing strength for 3 weeks, and you just may have a strong trade.
The other way to use the calculator is to use it to check the information you see before you make a trade. By using technical analysis, the information you see can be different from what is going to happen. Like trading the news for example.
What would really be nice is a currency strength index that can be seen in real time. Watching a strong currency get stronger, while watching a weaker currency get weaker would create a good trade opportunity.
Thank you Felix. I like to see the history of these instruments.
BEAR