How does one identify that a range bound opportunity is descending upon us? We all know the trading signals for identifying trends and trend breaks, but how about those that identify a range bound? While most of us focus on riding the next trend that may not be where the next opportunity lies.

That might be in a range bound, where it’s easy to figure where the pair will move lower or higher. Of course, we all know what a range bound looks like in the charts. The problem is once we identify it as such, it might be too late. Many of the range bound trends become apparent only in retrospect, when the pattern crystallizes. But there is some good news. Just like tools that identify trends and trend breaks, there are effective tools for identifying the approach of a range bound.

**Range Bound and Moving Standard Deviation**

The single most evident quality of range bound is, quite simply, falling volatility or Standard Deviation. As Standard Deviation falls, the pair has smaller fluctuations and therefore is “bound” within a range. Likewise, when Standard Deviation is low we are stuck in a range.

If we can time Standard Deviation (and we can), we can know when it’s about to fall. If it is about to fall then we are heading to a range bound and can adjust our strategy accordingly. Moving Standard Deviation is a measure of the change of Standard Deviation through time. And it is *exactly* designed for our specific case and thus makes it the ultimate tool to time an upcoming range bound. Here’s how you do that:

Source: e-signal

In the chart above, we have the Moving Standard Deviation or MSD running (at the bottom). It is evident that MSD tends to top out after surpassing the 80% level while it tends to bounce back after falling below 20%.

In part A and C, you can clearly see that as MSD topped out above 80% the pair became less volatile and then moved into a range. On the flip side, when MSD moved below 20%, we can expect the range bound to end and the trend to continue.

**Validate the Range**

**First Validation:** If the pair had been surging when the MSD surpassed the 80 level, that’s your high band of the range. On the other end, if the pair had been sliding when the 80 was reached, that’s your low. Whatever high or low was reached during the time the MSD hit above 80 that’s your first confirmation of the range you will be getting.

**Second Validation: **The confirmation of the other band of the range will present itself as a candle with a needle, rather shortly after.

**A Few Rules of Thumb**

**MSD 20 –** Exit Immediately: Regardless of direction in your range bound trade (long/short) or time elapsed since the 80 level signaled the range bound, be wary. If the MSD falls below 20 get ready to terminate your trade, because the trend is about to resume and your range might be over. Although it’s not always immediate, it’s better to take precaution rather than lose your gains by ignoring the below 20 signal.

**MSD is Only Good for Range:** That might sound tricky. As we just stated, the MSD will always fall below 20 before the trend resumes. You’ll know when to exit your range bound trade and be able to cap your risk of loss. But many times MSD will fall below 20 and the trend won’t immediately resume. Thus, don’t use the MSD to predict the opposite of a range bound; that is, to predict the trend. There are different tools for identifying when a trend is about to re-emerge.

**Range Bound Cycles:** Finally, as you can see in the chart, in the long run the cycles of range bound vs trending tend to be more or less the same length. That is always something to keep in mind. Although the MSD will be your mark to exit/enter the range, timing your cycles of range is always useful to let you know how much more time might be left in that lucrative range bound trend you are taking.

Pradeep Venkat Rao says

i use mt4 cannot afford anything that is not free can you suggest something for mt4

Robert says

Very informative on the MSD! Thanks Shaun!

Ed says

Is this indicator available for MT4 please?

Nico Scholtz says

Interesting observation!! Can you please provide the formula to calculate the MSD such that the output is always within the range of 0 to 100???

Shaun Overton says

http://ta.mql4.com/indicators/trends/standard_deviation

Chris Zimmer says

I think you calculate the simple moving avg for a period ‘n’.

You then sum the squares of the difference between the price and the moving average over the same period and divide this by ‘n’.

Then you would take the square root of this number.

Not sure what period would be best or what criteria would be used to pick one.