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From the Book : Technical Analysis of the Currency Market, by Boris Sclossberg (Copyright material) :
Is there a more accurate way to glean trend? Yes, I believe there is. Surprisingly enough, one indicator that is often used for range-bound markets can be an extremely helpful tool for trend discovery. I discuss the Bollinger bands (BBs) in more detail in Chapter 10, but for now note that we will use them in a unique way to detect trends in the currency market. Before we begin, let’s first examine the underlying notion of trend. What is trend really? I will postulate that trend is actually a deviance in price. It is common wisdom in all markets that trends are generally rare. Typically, in all markets, including the currency market, prices stay in a range somewhere between 70 and 80 percent of the time. Therefore, when prices decide to trend they in fact deviate from the norm. What is one of the best tools to measure deviation in technical analysis? Bollinger bands, of course. The Bollinger band formula contains the standard deviation (SD) calculation within it. Bollinger bands measure the standard deviation of price away from its 20-period moving average. Here is where the use of Bollinger bands becomes quite interesting. If you superimpose a second set of Bollinger bands with a standard deviation setting of 1 onto the price chart that already has a set of BBs with a default setting of 2 standard deviations, you will instantly see that as prices begin to trend the majority of price action is captured within the 1 SD–2 SD Bollinger bands. These Bollinger band “bands” divide the price action into three separate areas (see Figure 5.10). If prices are between the upper 1 standard [IMG] [/IMG]FIGURE 5.10 Bollinger Band “Bands” Source: FXtrek IntelliChart™. Copyright 2001–2005 FXtrek.com, Inc. deviation Bollinger band and the upper 2 standard deviation Bollinger band, they are in the buy zone. If a specific currency is trading between the lower 1 standard deviation Bollinger band and the lower 2 standard deviation band, then its price is in the sell zone. Price candles that exist in the area between the second Bollinger band “bands” are in effect in noman’s- land as markets struggle to find direction. In essence, Bollinger band “bands” act as dynamic trend channels in a superior version of hand-drawn trend line channels covered earlier in this chapter. Because Bollinger bands are generated off the 20-period simple moving average, their readings can be mathematically calculated with a much better degree of accuracy than simple trend lines. Furthermore, the standard deviation formula naturally adapts to the volatility of price action, widening or narrowing the Bollinger channels accordingly. For traders seeking a quick confirmation of trend, the Bollinger band “bands” approach offers an easy visual tool. One can use a variety of rules to trade with them, but I prefer the following simple rules. The example I will use refers to detecting and trading the uptrend (for the downtrend the rules are the same but simply reversed). To trade trend the trader needs to answer three basic questions: 1. Trend detection. When is a trend in place? 2. Trade entry. How is a position initiated? 3. Trade exit. What constitutes trend exhaustion? With the Bollinger band “bands” approach, the trend detection rule is quite straightforward. I consider the uptrend to have commenced once the price closes—not simply penetrates, but closes—in the buy zone. The idea behind this rule is that buyers must have enough conviction behind their actions to sustain a rally into the upper Bollinger channel. If prices merely pierce the channel but cannot hold their value, then we do not have enough evidence of a clear up move in place. The second component of the trade is perhaps the most tricky. Instead of simply entering the trade at market we will look for an opportunity to buy on any small dip into the no-man’s-land zone. If the penetration of the buy zone is so powerful that prices reach the upper 2 standard deviation Bollinger band, then we will wait for prices to retrace to the middle of the bands or to the 1 standard deviation band. Why such hesitation? Shouldn’t we just jump in the moment the trend becomes clear? No. Not if you want trade FX like a professional. When it comes to trend trading in FX, the difference between professionals and amateurs is that while the pros are trend followers, the amateurs are trend chasers. The distinction may seem like nothing more than semantics, but in fact it’s often what separates those who earn money through trading from those who lose it. But perhaps before I explain this point in more detail I should disclose the final component of the setup— the exit. Where would the trader abandon his position? At what point on the chart will he be proven most likely wrong? If prices retreat all the way back to the lower 1 standard deviation Bollinger band, then the trader should stop out. The probability that trend is over is very high. Note the difference in approach. In order for us to consider the trend valid, prices must not only touch but close through the upper 1 standard deviation Bollinger band. As for our exit, a mere tag of the lower 1 standard deviation band will take us out of the trade. Why be so slow to enter and so quick to exit? Because, as I noted before, trend is not the common state of price, so price must really prove to the trader that it is making a directional move. Once price can’t hold trend, there is absolutely no reason for the trend trader to stay around. His risks far outweigh potential rewards, because he now faces three possible scenarios—consolidation, trend reversal, or trend continuation. Two out of the three outcomes are unfavorable to his position and the last choice, which is advantageous, is usually the least likely under such circumstances. Using the lower 1 standard deviation band provides ample room for the trend trader not to be falsely shaken out of the trade while the price meanders through the no-man’s-land zone before it decides whether it wants to continue its initial impulse higher. Understanding the exit—the third rule of the trade—may now be helpful to appreciating the second rule of buying only when the price retraces. It all has to do with risk and reward. Remember that in real life prices frequently fake out the trader. Just because price enters into the trend channel is no guarantee that it will remain there. If markets were highly predictable most traders would make money rather than lose it. The key to positioning in a trend-based setup is to minimize the amount of losses for the countless times you will inevitably be wrong, rather than to maximize the gains for the few times that you will be right. In trading, as I will never tire of stating, trends are the exception, not the rule, and in order to avoid being wiped out, traders need to try to always enter the market under the most advantageous of circumstances no matter what the market environment holds. Novice traders tend to succumb to the lure of the crowd and not restrain themselves from buying at the top or selling at the bottom. Note in Figure 5.11 how a trader who buys the high of the candle exposes himself to fully 300 points of losses in the GBP/USD trade as the uptrend fails and price retreats all the way to the lower Bollinger band. The more patient trader, however, who would wait for a retracement down to the upper 1 standard deviation Bollinger band, Trend Is Your Friend? 75 would suffer only a 150-point loss. Both trades are losers but one is less of a loss than the other. Football fans know that the win does not necessarily go to the best athletic team but to the one that practices the best field management. Joe Theismann, the former quarterback for the Washington Redskins, once stated that he became a much better quarterback once he understood that he did not have to convert every third down play into the first down. If the opportunity just did not present itself to make first down, it was better to try for just a couple of extra yards, so the punter would have more room and could bury the opposition deeper in their own territory. Trading trend with Bollinger bands follows the same philosophy: When in the game the focus should always be on minimizing risk first, maximizing profit second. In the example with the GBP/USD pair shown in Figure 5.12 the setup shows how well Bollinger bands can be used to trade trend with minimal risk. First the price enters into the sell zone, signaling the potential for a downward move. Second, it retraces back to the 1 standard deviation line, offering the trader a low-risk entry into the trade. If the trader is wrong he [IMG] [/IMG]FIGURE 5.11 Buying on Retracement in GBP/USD Source: FXtrek IntelliChart™. Copyright 2001–2005 FXtrek.com, Inc. or she could stop out at the 20-period moving average, suffering only a minor loss. However, in this case the trader is correct and the profits turn out to be massive as the pair collapses for nearly 1,000 points of uninterrupted decline. Continued in next post............... Last edited by rkkarnani; 04-04-2009 at 08:01 AM. |
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CONCLUSION
Contrary to popular opinion, identifying a trend is not nearly as difficult as it may seem. Whether we use trend lines, moving averages, Bollinger band “bands,” or even, for some traders, the ADX, the technician’s arsenal is full of tools capable of accurate trend analysis. Yet while detecting a trend is easy, trading it is not. By definition, all of the technical analysis indicators use past price data and are therefore highly vulnerable to whipsaws and fakeouts. No technical analysis tool can predict future price action. Indicators can only suggest it. Generally, the more specific the technical setup and the more the trader has thought through the va- [IMG] [/IMG]FIGURE 5.12 Trading Downtrend in GBP/USD Source: FXtrek IntelliChart™. Copyright 2001–2005 FXtrek.com, Inc. riety of failures likely to befall it, the more robust the trade. In this chapter I have offered two setups (the compressed 3 SMA crossover and Bollinger band “bands”) that not only utilize the basic tools of technical analysis but combine them in circumspect, logical ways to trade most traders’ favorite price action—trend. In the next chapter we look at the far more common price behavior—range—and see how technical tools can help us to trade it successfully. Last edited by rkkarnani; 04-04-2009 at 12:14 PM. |
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Mr Karnani,
From the excerpts of the Boris Sclossberg ,you have posted apart from the BB Bands use he advocated i have noted few things. 1)"in all markets, including the currency market, prices stay in a range somewhere between 70 and 80 percent of the time." 2)"the difference between professionals and amateurs is that while the pros are trend followers, the amateurs are trend chasers. The distinction may seem like nothing more than semantics, but in fact it’s often what separates those who earn money through trading from those who lose it. " 3)"The key to positioning in a trend-based setup is to minimize the amount of losses for the countless times you will inevitably be wrong, rather than to maximize the gains for the few times that you will be right." 4)"Football fans know that the win does not necessarily go to the best athletic team but to the one that practices the best field management." Thks. Asish |
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rkkarnani
Excelent excerpts from the book .Many thanks for your effort to bring that section to this blog. ![]() It gives us more conviction to explore the setup. Last edited by shiree; 04-04-2009 at 01:37 PM. |
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Superb insight. |
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Thanks for initiating the thread. Please remove the "font size" from my name!! Its Boris Sclossberg who deserves it, not me. Please do it. |
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Wow, Ashish da, Great going, you just Posted the 'concentrate'!!!!
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In all charts displayes above, remove B Bands
and you go by rules of Pivots. >> U would discover entry point (Breakout) is same as indicated by B Bands. So BB becomes uncessary tool in the charts posted.
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| accumulation, bollingerband, boris schlosberg, breakout, distribution, squeeze play |
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