The
Best of Trading Tips
by Howard Arrington
What is over 500 printed pages in length and been 5 years
in the making? The answer is the Trading Tips newsletter,
which is beginning its 6th year. When readers asks if past
newsletter issues are available, I realize they have not yet
discovered this informative resource on the
Ensign web site. This table lists some of the best
articles published in past Trading Tips issues. Click on a
link to read the full article.
Trading Tip:
The Geometry of Charts
by Howard Arrington
A chart is the primary tool used by technicians to
analyze a security. A chart is a convenient graphical way
to represent the time, price and volume properties of a
trade event. This article will show the geometrical
relationships for various chart types.
Four basic properties of a trade:
- The date and time when the trade occurred. This
property is called the timestamp.
- The price of the trade. This property is called the
trade price.
- The number of shares or contracts involved in the
trade. This property is called trade volume.
- The trade event itself. This property can be
thought of as a tick.
The most common way to present the above information
about a trade, is to plot trades on a graph where time is
the horizontal axis, and price is the vertical axis.
Raw Tick Chart |
|
A raw tick chart
shows the individual trade events. The trade
event is plotted as a dot on the price scale
(vertical axis) at its timestamp (horizontal
axis). The trade volume is shown below as a
vertical blue histogram bar.
All subsequent chart types are just
variations of this basic graphical presentation
of the four trade properties. All variations
involve chunking raw ticks together to form a
collection. The collection is drawn as a bar,
instead of as a dot. |
|
Chunking Properties |
|
The tick chunking
can be thought of as enclosing a group of ticks
in a bounding rectangle. This rectangle
introduces the following bar properties.
Open: The price of the first tick in
the chunk.
Close: The price of the last tick in the
chunk.
High: The price of the highest tick in
the chunk.
Low: The price of the lowest tick in
the chunk.
Volume: Sum the trade volumes in the
chunk.
Timestamp: From either the first or the
last tick in the chunk. |
|
Fixed Time Period |
|
The width of the
chunking rectangle is based on a fixed period of
time. The fixed time interval may be any of the
following time periods.
Intra-day: The time period is some multiple
of 1 minute.
Day: The time period is 24 hours, measured
from an exchange's afternoon close.
Week: The time period is a week.
Month: The time period is a calendar month.
|
|
Fixed Price Range |
|
The height of the
chunking rectangle is based on a fixed price
range. When the price range is exceeded, a new
bar is started. An in depth discussion of this
type of chart can be read in this article:
Momentum Bars.
The bar volume is shown in blue.
The bar tick count is shown in red. |
|
Fixed Volume |
|
The width of the
chunking rectangle is based on the sum of the
trade volumes. When the sum exceeds some fixed
volume level, a new bar is started.
For example, if the fixed volume level is
500, each bar will build until its volume is
500. If the sum is currently at 496 and the
next tick's trade volume is 10, a volume of 4
will finish off the current bar's volume. The
new bar will start with the remainder 6 volume.
The bar tick count is shown in red. |
|
Fixed Tick Count |
|
The last variation
adjusts the width of the chunking rectangle
until it encloses the same number of trade
events. This is called a constant tick chart.
The bar volume is shown in blue.
The bar tick count is shown in red.
|
|
The four chart types shown above share in common the four
basic properties of a trade. Each chart type forces one of
the basic properties to be a fixed unit for each bar in the
chart. The three other basic properties will of necessity
have a variable size. This table summarizes the chart
types and the four basic properties of time, price, volume
and trade event.
Chart Type |
Time Period |
Price Range |
Volume |
Tick Count |
Intra-day, Day |
Fixed |
Variable |
Variable |
Variable |
Constant Range |
Variable |
Fixed |
Variable |
Variable |
Constant Volume |
Variable |
Variable |
Fixed |
Variable |
Constant Tick |
Variable |
Variable |
Variable |
Fixed |
Display Formats:
The chunked group of raw ticks form a bar, which can be
displayed using the following variations. The display
variations can be used with any of the chart types.
There are other variations in the presentation of the
trade information. Each variation emphases some particular
property or characteristic of the underlying data, often at
the expense of ignoring or hiding other characteristics.
So this article is by no means complete and exhaustive.
Some variations that were not covered include: Renko
Charts, Swing Charts,
Heikin-Ashi Charts,
Average Candle Charts,
Point and Figure Charts, Three Line Break Charts, Price
Histogram Charts, and Market Profile Charts.
Beginning traders may wonder whether one chart type or
display variation is superior to another. The answer is
basically 'No'. All chart types have their roots in the
same trade information. Every variation will have traders
who use that variation successfully and exclusively. Having
said that does not mean that there isn't a popularity bias.
Here is my opinion about the popularity of the different
chart types and display variations.
Popularity |
Chart Type |
Display Format |
High |
Constant Tick |
Candlesticks |
|
Intra-day, Daily |
Standard Bars |
|
Constant Range |
Line Chart |
|
Constant Volume |
Close Ticks, not
used |
|
Price Histogram |
|
Low |
all others |
|
Trading Tip:
Yesterday's High, Low, Close
by Ana Maria Gallo
I recently noticed that my small volume charts didn't
show the same yesterday's high (YH), low (YL), and close
(YC) values as shown on my minute charts. I keep the
maximum bar count small and in the case of the YH and YL,
the data to find those values was no longer in the chart
data set! Rather than needlessly increase the max bars,
and in the process make a resource intensive chart, I
created a tab on the Daily Price Lines drawing tool that
writes YH and YL as Global Values (GV). Additionally, I
discovered that because the volume bars close out with
volume, and not time, that the close shown on those charts
didn't match the regular trading hours close. So, I added
YC as another GV. The resulting setup is shown below. I
can then draw the Daily Price Lines on my 5 minute chart and
select this predefined setup so that the correct real time
hours (RTH) YH, YL, and YC are written:
The GVs [18], [19] and [20] are then available to be used by
the Daily Price Lines that I place on my volume bar
charts. To do this, I created another Daily Price Lines
setup that reads the GVs and marks them as price lines. I
saved that setup as Tab 2. Ensign will then draw lines at
the price levels stored in the Global Variables, using the
line properties I selected. I always use the same colors
for high, low, and close. I see the GV labels and know that
they are the RTH values from the 5 minute chart.
Mail Bag:
'As always, thanks for your patience, help, and continued
enhancements to Ensign, and the value you create in this
incredible software package.' -F. Del
Casino 01-03-2005
'Can't tell you how grateful I am for the really quick
reply and the fantastic support. Many thanks for your time
and help.' -N. Rayne 01-03-2005
'I think you have really hit the best template with the
Study Consensus, and also your CCI with Auto-Trendlines
will do more than Woodie's CCI setup.' -J.
Riffel 12-28-2004
'Being able to chart the tick chart speed (see
Market Speedometer) has added a great deal of value for
me, very nice!' - J. Tybrand 12-23-2004
'The
December issue must rank as one of the most outstanding
"Tips" newsletters, ever! You've illustrated in a neat,
logical, and most importantly, easy to understand way just
what linear geometric projections (i.e. lines) are. By
putting them in a global perspective, you demonstrate how
this basic concept -- geometric projection -- can be
displayed in many ways using tools that many don't even
believe are related. Also, thanks too for the links to the
"speed bar". I saw it shown in a chart but couldn't figure
out how to do it. I love it! I am now exclusively using
volume bars for intra-day trading (aside from a glance at a
10 min. or 2 min. bar chart) and will experiment with it
over the holiday. Best wishes to you and my gratitude for a
really "swell" program.' -A. Gallo
12-23-2004
'Thanks very much for the great software and the new
history data. Its a little scary seeing the big picture
though, where things have come from and where they could
go.' -D. Morahan 12-22-2004
'I must admit that after many years of using various
other software, I find Ensign to be the most dynamic of
them all. I can't tell you how pleased I am with your
product. As President of the Society of Market Technicians
in Washington DC, (www.markettechnicians.org),
I have recently briefed our membership about the technical
wonders of Ensign, in addition to your unbeatable price.
I'm absolutely sure you'll be seeing more new subscribers
from the DC area in the coming months as subscriptions from
your competitors expire. Thanking you in advance.'
-K. Armstrong 12-21-2004
'Your programming is the best. Years ago I took a course
from the father of Stochastic, George Lane. He introduced
me to Ensign then. The innovations you've made with
Pesavento Patterns tools makes trading enjoyable. The
key is to put all these tools to use, quickly and properly
to make money. And your Fibonacci programming tools work
and are easily employed. I always check the Fib ratios on
my Excel calculators (just as a fail safe), and the match is
on the money. When one trades a lower time frame it is
necessary to fly the same path as the larger time frames. I
can plot the larger time frames trend line over the tops of
the shorter one and get some unbelievable probability. Love
this stuff, great workmanship.' -W. McGrath
|