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ASX Investor Update
October 2015
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Resource stocks

The October 2015 edition of the ASX Investor Update newsletter features an article
from Robert Brain with a discussion on resource stocks

Every chart tells a story - it pays to understand the stories in the charts!

Below are charts with larger versions available and a special offer for Investor Update readers.

 
 

The October 2015 ASX Investor Update newsletter

For the full published text of the October 2015 article that Robert authored, and the published price charts, see the ASX article here... and the full edition of the October 2015 newsletter. Below is some more information, and larger versions of the price charts (click on the images for a larger version). For the full text of the online article, do refer to the ASX.com.au web site.

Resource stocks

Is now the right time to buy resource stocks? Is the mining and resources slump coming to an end? Are there useful clues in the long term commodity price cycles?

Many investors tend to look for an investment that is likely to out perform in the long term, while many other investors look for out-performance in the near term. I say the near term because we have seen in recent years that we can no longer achieve the best portfolio performance using a long term buy-and-hold strategy. There needs to be some amount of portfolio performance monitoring and fine tuning at least from year to year, and this can’t be done with the set-and-forget buy-and-hold approach.

Do refer to the online article at ASX.com.au for the full version.

A long-term price chart that covers a wide range in share price is often best viewed using a logarithmic price scale on the vertical axis. Note the two price charts below. They are both weekly charts of BHP Billiton over almost 30 years from 1986 until mid-September 2015. 

Linear price scale
This chart uses a normal linear price scale, and we can see that the share price appears fairly low and flat across the first half of the chart until mid-2003, after which the share price seems to have rallied strongly.
BHP weekly (linear scale)
BHP weekly 1986-2015 (linear scale)
(click on the chart for a larger image)
Log price scale
This chart is exactly the same as the left-hand chart except that the vertical price axis uses a logarithmic scale — making this a semi-log price chart.
BHP weekly (linear scale)
BHP weekly 1986-2015 (log price scale)
(click on the chart for a larger image)

Price cycle duration?

For comment about the price cycle duration, refer to the online article at ASX.com.au.

When to buy resources stocks

In the next price chart below, note that Woodside’s share price (thick black line in upper half) peaked in August 2014, then began a sequence of lower peaks and lower troughs (a downtrend) with a lengthy pause for the first few months of 2015 while it ranged above $34 from February to June. It clearly fell below this level in August 2015, indicating the majority of market participants believed it was now worth less than $34. (The $34 price level was a support level, and then became a potential resistance level.) Until this downtrend is confirmed to have finished, there is a downtrend in place and we don’t like trying to catch falling knives.

Woodside Petroleum (WPL) and Momentum indicator
Woodside Petroleum (WPL) and Momentum indicator (weekly chart, 2014-2015)
(click on the chart for a larger image)

The red curve on the same chart (above) is the 30-week Exponential Moving Average (EMA). Stan Weinstein (who wrote the best selling book Secrets for Profiting in Bull and Bear Markets) advised that a falling share price below its falling 30-week EMA is very bearish (read more about Stan Weinstein and his approach using the 30 week Moving Average). The bottom half orefer to the online article at ASX.com.au for the full version.f the chart shows the Momentum chart indicator (the squiggly green line) with its own Moving Average curve in blue. With the Momentum recently revisiting past lows, this is also bearish.

Stock picking

If looking at some possible investment candidates and wondering which to choose, we could compare them as follows. If looking at our large resources stocks, BHP, Rio Tinto and Fortescue, we could plot their share prices on the one chart as in the accompanying diagram.

Comparing BHP Billiton, Rio Tinto, Fortescue (weekly chart, 1986-2015)
Comparing BHP Billiton, Rio Tinto, Fortescue (weekly chart, 1986-2015)
(click on the chart for a larger image)

In this weekly chart we can see the strong moves in share price for both Rio and Fortescue, which are smoothed out somewhat by using the log scale on the price axis. The linear scale would show a strong price spike for Fortescue in mid-2008. (This chart shows corrected data for any stock splits and consolidations). We can see that BHP has had the less volatile share price, which might better suit some investors. But how have they actually performed in comparison to each other?

*** The following text and chart was not published in the Investor Update,
nor published on the ASX web site (the submitted article was too long) ***

The next price chart (shown below) is the comparative percentage performance of these three stocks, and their sector index — the S&P/ASX 200 Materials index (XMJ). The chart is a weekly chart and indicates the percentage change in share price of each stock since the start of 2009 when the three stocks started their recovery from the falls of the GFC in 2007-2008.

Comparative Percent Performance chart comparing BHP Billiton, Rio Tinto, Fortescue (weekly chart, 1986-2015)
Comparative Percent Performance (weekly chart, 2009-2015)
(click on the chart for a larger image)

This chart shows that BHP and the XMJ sector index have been closely correlated over that period. It also shows that Fortescue’s share price rallied about 250 percent over a two year period from it’s lows of 2009, then drifted away. In 2015 it has fallen back to about the same price as six years ago. This chart shows us the past performance of each stock in percentage terms, and compared to each other. It is a useful tool to help anticipate likely future performance. But these stocks are all down trending currently, and the share prices might fall a long way further before reaching a bottom.

Conclusion

A technical analysis of the price charts can be very useful to tell us where the share prices have come from, and in comparison to each other, and whether a price rise or fall is more likely in the short to medium term. 

More Information?

Do refer to the online article at ASX.com.au for the full version of this article.

Want to understand more about how to interpret the price charts? See the details in the right-hand column above...

To print this web page - in your browser select the printing option "Shrink to fit".
View larger versions of the charts below by clicking on the chart.

More information

To understand more about how to interpret the underlying mood and sentiment using the price charts:

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Last revised: 17 October, 2015.