How to Trade Some of the Most Conspicuous Price Phenomena: Gaps and Windows


“Gaps” (as they’re known as within the West) and “home windows” (their Japanese counterparts) have all the time attracted the eye of technicians – likely as a result of they’re almost unattainable to be missed on a worth chart. In spite of everything, a buying and selling session mendacity fully exterior of the prior day’s vary, which is what gaps and home windows are by definition, should carry some sort of predictive energy. Nevertheless, a crucial query stays – are gaps and home windows indicative of the start of a brand new pattern (because it was the case for AAPL in Determine 1), or are they merely an overreaction and are subsequently rapidly stuffed (because it was the case for MMM in Determine 2)? Discover how within the former case the hole stayed opened (and it nonetheless is) for greater than a yr, whereas within the latter case the hole was stuffed/closed inside two months (i.e. subsequent worth motion in September fully overlapped the vary of the hole).

Determine 1. AAPL Each day

Determine 2. MMM Each day

Notice, from right here on, solely the time period “hole” is used, although there is a vital distinction between the 2 – “gaps” have a look at intraday costs when figuring out if they’re “stuffed”, whereas “home windows” solely have a look at “closing” costs. On the backside of the article, yow will discover references to a number of works on the worth phenomenon, during which the distinction between the 2 variations is mentioned in-depth.

On condition that gaps happen fairly incessantly (see referenced supplies for particulars), it’s straightforward to grasp how any “hole” technique might be depicted to have predictive energy. Most conventional books on technical evaluation embody a listing of hole buying and selling methods adopted by a couple of stellar charts which are presupposed to show the methods’ validity (charts much like Figures 1 & 2). Moreover, given gaps’ conspicuous nature, most conventional buying and selling methods have their “entry” on the day the hole happens (or Hole Day). For instance, proponents of gaps being a continuation sample would recommend that taking a place within the course of the hole on Hole Day is worthwhile. Alternatively, technical analysts who imagine that “all gaps get stuffed” recommend taking a place on Hole Day in the other way of the hole. In each instances, motion is taken on Hole Day.

After buying and selling and analyzing gaps for a few years, I used to be sure that conventional theories don’t work the best way they’re described to. Most likely essentially the most illogical stipulation made by varied technical authors was that “the hole itself ought to function assist or resistance” and “as soon as stuffed, gaps change into insignificant”. Quite the opposite, I had discovered that the hole itself is never a powerful assist or resistance and that fairly often essentially the most important gaps are people who have already been stuffed. That is when, in 2016, I developed a brand new concept on gaps (“Okay-Divergence), which considerably “diverges” from conventional theories.

Earlier than discussing what the Okay-Divergence concept entails, a proof of the most well-liked conventional theories is introduced.

Conventional Hole Theories

1. A spot is a continuation sample.

Technique – taking a place, on Hole Day, within the course of the hole.

This concept is predicated on the concept if, on any given day, costs bounce/fall considerably sufficient to by no means contact the prior session’s worth vary, one thing important will need to have occurred and altered the market’s sentiment on the corporate. On this case, on Hole Day, costs are assumed to mirror the altering opinion of the inventory solely partially, and thus, additional motion within the course of the hole is predicted. Within the case of AAPL’s hole (Determine 1), on February 1, 2017, the corporate reported better-than-expected 1Q17 earnings on the heels of document breaking iPhone gross sales. Subsequently, the worth continued shifting greater in a swift vogue, leaving the up-gap behind it. Usually, proponents of this concept use assist and resistance ranges, or technical indicators, as a affirmation that the hole has occurred at an necessary juncture and that it may be trusted. For instance, zooming out and looking out on the inventory’s worth motion since 2015 (Determine 3), merchants who make the most of gaps as continuation patterns can declare that “the breakout occurred above the interim excessive of the a number of backside formation, and subsequently, carried excessive predictive energy”.

Determine 3. AAPL 2-Day Chart

2. A spot is an overreaction.

Technique – taking a place, on Hole Day, in the other way of the hole

Advocates of this concept are satisfied that gaps are a results of market individuals overreacting to information (or “noise”) and that after participation subsides, the hole is predicted to get stuffed. The well-known adage “all gaps get stuffed” is commonly utilized in an try to assist this supposition. Just like the earlier technique, assist/resistance ranges and technical indicators are anticipated to offer additional affirmation if the actual hole is to be stuffed. For instance, wanting as soon as once more on the MMM chart (2-day chart – Determine 4), one might say that the down-gap took costs near a well-established uptrend (inexperienced trendline) and to a key shifting common (100 SMA – yellow line). Additionally, to additional assist the thesis that costs will reverse, one might level to the constructive reversal in RSI (to not be confused with a constructive divergence), which indicated that the correction has taken the inventory to oversold ranges throughout the uptrend (i.e. RSI making a decrease low, whereas costs making the next low).

Determine 4. MMM 2-Day Chart

The above two methods are an ideal instance of technical evaluation being extra of an “artwork” than “science”, the place it’s as much as the technician’s discretion to resolve what motion to take after observing a spot. Whereas, after testing each methods (see Okay-Divergence part), I discovered that neither the easy continuation nor reversal methods are worthwhile on a scientific foundation, there are positively particular conditions the place the chance of a spot reversing is greater and vice versa. Sadly, the following technique, the one present in virtually any TA e book, is without doubt one of the the explanation why technical evaluation has a nasty title amongst most non-technicians.

3. A spot might be both a continuation sample or an overreaction based mostly on its “classification”.

Technique – an ambiguous one based mostly on hindsight

Because it had change into evident that gaps can’t be all “continuation patterns” or “overreactions”, the favored hole classification system was born – the place gaps are categorized as both “breakaway”, “continuation/runaway”, “exhaustion” and “frequent”. This classification is predicated on two standards – 1) the placement of the hole relative to previous worth motion and a couple of) whether or not the hole will get stuffed or not. Nevertheless, as one can think about, there is no such thing as a method to know on Hole Day whether or not a spot will probably be stuffed sooner or later. That’s, the classification system is predicated on hindsight. Let’s show this level by taking a look at an instance. Determine 5 reveals an up-gap after a chronic uptrend. Primarily based on the widely-used classification system this hole might be “runaway” (if the hole doesn’t get stuffed and costs proceed greater), “exhaustion” (if costs rapidly reverse, fill the hole and proceed decrease) and even “frequent” (if costs fill the hole however don’t reverse or consolidate). Given the color of the candle and the lengthy higher wick, it looks like it’s an “exhaustion” hole, proper?

Determine 5. Each day Chart (actual chart, ticker hidden)

Clearly, it’s only in hindsight that this hole might be categorised. On this case, the hole turned out to be of the “runaway” sort because it didn’t get stuffed and the inventory (MSFT) continued propelling greater (Determine 6). The purpose is, the classification system is futile for making choices on Hole Day.

Determine 6. MSFT Each day Chart

Okay-Divergence (Okay-Div) Principle

4. Most gaps happen after costs have moved away from a big assist or resistance ranges.

Technique – taking a place within the course of the hole, solely after costs have returned to pre-gap ranges

Extra particularly, the idea means that generally an up-gap transpires after costs have already jumped from a key assist stage and a down-gap – after costs have already fallen from a key resistance stage. The idea is predicated on the premise that earlier than a spot happens costs have already reached a key stage and have bounced from it. It is just in a while, after most market individuals agree on the course of the following transfer and take positions in the identical course that gaps happen. Because of this it’s not the hole itself that ought to function a assist or resistance, however quite the vary of costs previous it (pre-gap vary). An important implications of the idea are – 1) the hole itself mustn’t function assist or resistance and a couple of) a stuffed hole isn’t “insignificant”.

So why does the Okay-Divergence make sense from a technical viewpoint? In spite of everything, if costs gapped resulting from “information” that no person was conscious of, this is able to imply that gaps are nothing greater than costs adjusting to the brand new info. Any such conclusion ought to render elementary and technical evaluation ineffective, for it might indicate that no analyst is ready to buy a safety earlier than information will get disseminated. Quite the opposite, the Okay-Divergence assumes that essentially the most astute market individuals (i.e. the very best elementary and technical analysts, quants and even “insiders”) are in a position to commerce upfront of the hole occurring. Due to this fact, true assist and resistance ranges lie previous to the hole transpiring and subsequent filling of the hole doesn’t render it “insignificant”.  It’s best as an example this with an instance. I’ll use one among my most up-to-date predictions based mostly on the idea, which was despatched to one among my shoppers. First, I’ll describe the rational intimately with an up to date chart (Determine 7), which will probably be adopted by screenshots from the day the sign was given.

After the shut on February 1, 2018, Google reported its 4Q18. The following day, the inventory opened sharply decrease and continued falling into the shut (Feb 2 – Down Hole in Determine 7). The inventory continued falling together with the market till the Feb 9 low was set. Subsequently, whereas NASDAQ was making new highs in early March, GOOG reached the pre-gap vary (Bearish Okay-Divergence Vary – violet horizontal trendlines) and began stalling. As a result of sturdy bounce by the broader markets, the inventory recovered and stuffed the hole. Nevertheless, when the inventory began buying and selling on the pre-gap vary, market individuals got a second likelihood to promote the inventory for a similar worth it was buying and selling at earlier than the 4Q18 earnings have been launched. Value motion confirmed the bearishness of the set-up (GOOG March 13 & 16 – Figures 8 & 9).

Determine 7. GOOG Each day Chart

Determine 8. GOOG March 13

Determine 9. GOOG March 16

With a purpose to validate the idea, I developed two buying and selling methods based mostly on it (one with the hole and one with the window variation) and backtested them together with 5 variations of the normal hole methods mentioned above. Determine 10 reveals the 1-, 2-, 5-, 10-, 20-, 30- and 44-day interval returns of the 7 methods (#6 & 7 being the 2 based mostly on the Okay-Divergence concept) and Determine 11 reveals the annualized returns for the those self same durations. The backtest took into consideration a complete of 14,219 gaps over almost a 2-year interval.

Determine 10. 1-, 2-, 5-, 10-, 20-, 30- and 44-day interval returns

Determine 11. Annualized 1-, 2-, 5-, 10-, 20-, 30- and 44-day interval returns

The 2 Okay-Div methods have been worthwhile all through all durations. The one different constantly worthwhile technique was “Fading the Hole” technique which entailed taking a place in the other way of the hole on Hole Day, however closing it instantly after the hole was stuffed. This as soon as once more goes in opposition to conventional theories which recommend that after a spot is stuffed, costs ought to proceed going in opposition to the hole’s course as, supposedly, an necessary assist/resistance was breached.

It’s noteworthy that the Okay-Divergence concept doesn’t recommend that all gaps have occurred after necessary assist/resistance ranges or that they will all be traded profitably in a similar way because the GOOG instance. Slightly, it supplies a framework for analyzing the hole phenomenon, on that each one lively traders/merchants ought to imagine in, which assumes that some market individuals are in a position to act forward of main strikes (i.e. previous to the looks of gaps). Moreover, it eliminates using the “hindsight” hole classification system.

For extra on gaps, I like to recommend studying Julie R. Dahlquist and Richard J. Bauer’s “Technical Evaluation of Gaps” e book, the place they conduct, one of many first on the subject, goal investigations of the phenomenon. For a way more in-depth protection of the Okay-Divergence and my analysis on gaps, you possibly can view my thesis for the Grasp of Monetary Technical Evaluation (MFTA) Program, printed within the 2018 IFTA Annual Journal.


Sooner or later, no matter whether or not you search for alternatives to commerce gaps on Hole Day (methods 1 & 2) or resolve to make use of the Okay-Divergence as a part of your buying and selling arsenal, I hope this text would make you suppose extra critically the following time you hear phrases such because the “runaway” hole. And much more importantly, will push you to research gaps even after they’ve been stuffed, and in line with conventional concept, have change into insignificant.

Glad hole buying and selling.

Featured picture courtesy of Shutterstock. 

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Written by Nikolai

Nikolai is a Canadian writer currently living in Singapore. His started writing on Blockchian and bitcoin since 2017, he do Reviews and Analysis on Coins, ICOs. He holds a Master in Business Management and have keen interest in Computer Since, Blockchain and love to write on latest trends in Blockchain space.


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