Slack Investor Hero John ‘Jack’ Bogle with a fitting ‘HOLD’ mantra.
Bogleheads and Vanguard
Slack Investor has paid tribute to the contribution that Jack Bogle has made to the investing world. He started Vanguard Investments in 1974. Bogle’s philosophy wasn’t about trying to beat the index and charging high costs – instead, he would offer a low-cost alternative fund based on the US index. Mr Bogle’s pioneering work with these low-cost funds has led to the popular low-cost Exchange Traded Funds (ETF’s) that proliferate today. Astonishingly, there are now more ETF’s listed in the US (4300) than actual companies (4200).
Slack Investor can well remember the days when a fund manager would charge you 4% of your capital for entry and then lift a further 2-3% in annual fees for the privilege of investing your money – that was not the ‘good old days’.
‘Bogleheads’ are a group of mainly US followers of Jack Bogle’s philosophy and they strive for long-term growth through low-cost, diversified index funds while minimizing fees. They are generally ‘Buy and Hold’ investors. One of their strategies is the three-fund portfolio – where investing is simplified into three low-cost funds – one for the local share market, one for international shares and one for bonds. For the US, the conservative recommended proportions are, your age defines the % in Bonds and the remainder percentage is split so that roughly 20% is in international equities.
In Australia, such a portfolio is a little more complicated as you need to cover yourself for currency risk – and hedge your international exposure for any fluctuations in the Australian dollar. Exposure to emerging markets is also recommended as a diversifier of risk. A Bogleheads type of portfolio is possible using 5 Vanguard funds.
The 5 ETF’s for an Australian Bogleheads portfolio. Management Expense Ratios (MER) ar shown for each ETF. For a younger person, Australian Bogleheads suggest proportions VAS: 20%, VGAD: 20%, VGS: 40%, VGE: 10% and VAF: 10% – From Passive Investing Australia.
Slack Investor can see the attraction that Bogleheads have in passive investing and, when he loses his mojo, will opt for a more simplified Boglehead-approved passive exposure to growth and cash/bond assets. Stockspot also offer diversified portfolios using just 5 ETF’s – with excellent performance so far.
Vanguard Financial Year Total Returns for major asset classes
Extract from the FY 2025 Vanguard Index Chart Brochure showing the total returns for each asset class for the financial years since 1996. Top performing asset class for the year is highlighted in green and the worst in pink.
Vanguard Annual Chart
It is now time for Slack Investor’s favourite chart – a succinct demonstration of long-term investing. The essence of successful investing is to be invested at leastsomewhere in appreciating assets – and then, let time do its work. Below is an extract from the Vanguard 2025 long-term investing chart. The numbers on the right are the results of investing $10,000 in the Index funds of the indicated asset classes for 30 years.
Extract from the 2025 Vanguard Index chart (Just the 2007-2025 portion is shown) – the dollar values on the right are the results of investing $10,000 in index funds in each asset class for 30 years (since July 1995). – Check out the full 30-year glory of the Vanguard 2025.PDF chart – Click image for the whole 30-yr chart.
August 2025 – End of Month Update
Slack Investor is IN for Australian index shares, the US Index S&P 500 and the FTSE 100.
The S&P 500 (+1.9%) continues its progress. Slack Investor is pleased to go with the flow but remains nervous for the US markets. For the ASX 200 (+2.6%) and the FTSE 100 (+0.6%), also some monthly gains.
The latest reporting season has brought a few shocks to the Slack Portfolio. Big falls in Botanix (BOT), Telix Pharma (TLX), and CSL. Not so worried about CSL, but looking to reduce holdings in the less established companies (BOT, TLX) when things settle down. Next blog, Slack investor will go into detail how he is dealing with a few sudden drops in individual stocks.
All Index pages and charts have been updated to reflect the monthly changes – (ASX Index, UK Index, US Index).
Slack Investor likes to measure things, especially long-term results. In the world markets, for FY 2025, the FTSE 100 Total Return Index was up 10.8% (FY 2024 up 11.8%). Dividends helped the Australian Accumulation Index to be up 9.0% for the financial year (FY 2024 +12.2%). The S&P 500 Total Return Index is again the top performer – and was up 15.2% (FY 2024 +24.2%). All of these Total Return Indices include any accumulated dividends.
Slack Investor has stuck to his strategy of mostly investing with growing companies that are profitable (Return on Equity >15%), have an established earnings record and, not too expensive (forward P/E ratios <50). He expects a bit of volatility in his growth oriented investment portfolio. He is reassured that, despite the odd negative year in the Slack Fund, the dividends and his separate Stable Income portfolio are doing what they should – keeping Slack Investor with enough cash to ‘keep the wheels on’ the Slack lifestyle – should the stock market sour.
Slack Portfolio Results FY 2025
All Performance results are before tax. The Slack Portfolio is Slack Investor’s investment portfolio. He is glad to report an annual FY 2025 performance of +18.1%. Full yearly results with Australian benchmarks are shown in the table below. Slack Investor realises that only long-term results really count.
For property values, Slack Investor is using the Home Price Index supplied by PropTrack. The Index uses median values for each city – I would have preferred calculations that include the net rental yield, but this will have to do. Of course, the real estate industry avoids true measurement of real estate performance by collecting figures only on gross price changes – they ignore the significant transfer costs involved (Stamp Duty, Conveyancing, Bank Fees, etc) and, the costs of any home improvements and renovations.
For FY 2025, the Australian Share market Total Return Index (ASX200 Acc) was up 9.0%. The Vanguard Diversified Growth ETF (VDGR), comprising International shares (42%) and Australian Shares (28%), increased by 12.7%. Inflation is now within the Reserve Bank target – with the CPI at +2.1%.
The Cash rate of 4.3% is above inflation. Cash is important – but not a way to grow your wealth. The average readily available cash rate of return since 2010 is 2.6% and, for cpi measured inflation, it is 2.7%.
Although Slack Investor collects yearly figures, the 5 and 10-year compound annual performance gives me a much better idea about how things are really going. Long-term results will smooth out any dud (or remarkable!) yearly figures. The Slack Fund is still ahead of most Benchmarks – but running a close second is Brisbane Residential real estate over a five-year period.
The Slack Fund average 5-yr compound yearly return vs BENCHMARKS in chart form.
10-year compound annual rate of return
The Slack Fund has been around a while and generating some good long term data (10-yearcompound ‘rolling’ annual rate of return). Over this time frame, the Slack Fund has been performing very well. For FY 2025, a 10-year annual rate of return of over 17% – Go Slack Fund! The 10-yr data is shown below in table and chart form.
It is useful to note that, the 10-yr rates of return for the Median Balanced Fund, Vanguard Growth fund, ASX200, and residential property in Brisbane and Melbourne are also good long-term investments. These appreciating assets generate a 10-yr compound annual rate of return in the region of 6-9% p.a.
The Slack Fund average 10-yr compound yearly return vs BENCHMARKS in table form. Prior to 2022, 10-yr Vanguard Growth fund figures were not available. AV. YEARLY is the annual mean of all the data since 2019.
Although Cash is necessary to add stability and flexibility to a portfolio. From the chart below, Cash as a long-term investment vehicle, is a poor choice.
The Slack Fund average 10-yr compound yearly return vs BENCHMARKS in chart form.
15-year compound annual rate of return
Perhaps because Slack Investor is showing signs of age, he notices that there is enough accumulated data for rolling 15-yr rates of return. Happy to report solid long-term results.
The Slack Fund average 15-yr compound yearly return vs BENCHMARKS in table form.
Growth of a $10 000 Investment Since 2009
The beauty of compounding with a succession of good performance results can be seen in the chart below showing the growth of an initial investment in June 2009 of $10 000.
The Slack Fund has exceeded my expectations. Also, the chart shows that investing in either shares or residential property has been a solid way of growing your money over the long term.
‘Do not judge me by my success, judge me by how many times I fell down and got back up again.’
Nelson Mandela
Slack Investor is obviously not in Nelson Mandela’s league … but I do admire President Mandela’s resilience. Learning to live with stock prices that go down is an important part of successful investing.
This post is a bit of an annual ‘poke around’ in the portfolio. The percentage yearly returns quoted in this post include costs (brokerage) but, the returns are before tax. This raw figure can then be compared with other investment returns.
I use the incredibly useful Market Screener to analyze the financial data from each company. This excellent site allows free access (up to a daily limit) to their analyst’s data, on the financials tab for each stock, once you register with an email address. Slack Investor extracted the predicted 2027 Price/Earnings (PE) Ratio and Return on Equity (ROE) and average forecast revenue growth for the financial years 2025, 2026 and 2027. He then condensed all this information into one number, the Slack Factor, to make things easy for Slack Investor’s limited brain. The Slack Factor is still ‘experimental’ but, increasingly, Slack Investor is using it to differentiate between stocks – the higher Slack Factor, the better.
Slack Investor Stinkers – FY 2025
Financial year 2025 was big on volatility. Despite this, Slack Investor’s followed markets all ended up with solid total returns when dividends are taken into account. Australia +9.0%, the UK +10.8%, and the US +15.2%. Slack Investor knows that stinkers are a part of the game, even in good years – and managed to attach himself to a few stinkers along the way.
Webjet (WEB + WJL) -46%
This is a complicated story as Slack Investor bought into Webjet (WEB) which then split into two entities. The ‘sizzle’ was that Web Travel Group contained a wholesale booking business that was growing fast. Suffice to say, that sales didn’t meet expectations and both companies sank. He then lost faith and sold both. When it comes to the travel business, Slack Investor wants to be only a consumer as there seems too much competition in this field.
CSL (CSL) -18%
(CSL – Forecast 2027: PE 22, ROE 18%, Av. Growth 14%, Slack Factor 12). CSL is a big holding for Slack Investor (10% of portfolio) and, for the past 6 years, has been rangebound between $230 and $330. It has not had the chart of a growth stock but, they have continued to spend on Research & Product Development at levels around 10% of revenue. This should be a good thing for future earnings. The eternal optimist in me is thinking … this is the year! But, I also thought this last year … and the year before … there is a strong chart signal this year though – the powerful ‘wedgie’! If it wasn’t already such a large part of my portfolio, now would be a good time to buy.
Botanix Pharma (BOT) -12%
Slack Investor entered the murky and volatile world of Biotechs with a small stake (0.2% of portfolio) in Botanix Pharmaceuticals. So far, not very good! It seems there is a lot that can go wrong in this field for startups.
Slack Investor also went backwards with his holdings in Dicker Data (DDR), GlobalX ACDC ETF, and Cochlear (COH) – all now sold. Wisetech (WTC) and Alphabet (GOOGL) were also on the slide but, thankfully now recovering.
Slack Investor Nuggets – FY 2025
Nuggets are a blessing in any portfolio – this Financial Year, there were some bewdies. Slack Investor continues to invest in high Return on Equity (ROE) companies with a track record of increasing earnings. If expectations are met, companies with these qualities sometimes behave as ‘golden nuggets’.
TechnologyOne (TNE) +124%
(TNE – Forecast 2027: PE 64, ROE 34%, Av. Growth 20%, Slack Factor 11). Technology One is a great Australian success story. It sells software as a service to other companies internationally. I first came across this company through Rudi Filapek-Vandyck – who included TNE as one of his ‘All Weather’ stocks. Glad to be an owner of TNE, as well as owning many other of Rudi’s All Weathers. Very highly valued (2027 PE 64) now though!
Pro Medicus (PME) +104%
(PME – Forecast 2027: PE 154, ROE 53%, Av. Growth 38%, Slack Factor 13). Pro Medicus is a developer and supplier of healthcare imaging software and services to hospitals and diagnostic imaging groups. The Price to Earnings ratio is frighteningly high (2027 PE 154) – but Slack Investor is enjoying the journey.
Codan (CDA) +75%
(CDA – Forecast 2027: PE 27, ROE 23%, Av. Growth 20%, Slack Factor 17). Codan is a technology company that specializes in communications and metal detecting. It is one of Slack Investor’s core holdings. CDA has had a checkered past – a nugget in FY 2021 (+161%), a stinker in FY 2022 (-58%), a nugget in 2024 (+54%), and again, a nugget (+75%) in 2025. What has kept me in the stock was its low debt, (generally) increasing earnings, and the high profitability (ROE 23%).
Supply Network (SNL) +70%
(SNL – Forecast 2027: PE 30, ROE 38%, Av. Growth 18%, Slack Factor 23). Supply Network are a bus and truck parts distribution company using the Multispares brand. Although there are competitors in the big-vehicle parts business, what sets SNL apart from the rest is their great management and strict adherence to processes and efficiency. They have consistently held a profitability advantage over their rivals. They have maintained a high Return on Equity (ROE) of 36% even as the company has expanded and grown in price. What a well-run company!
Megaport (MP1) +52%
(MP1 – Forecast 2027: PE 74, ROE 18%, Av. Growth 55%, Slack Factor 13). Megaport provides software that helps other companies tocreate and manage secure network connections between offices and the cloud. They must be doing something right as their average predicted revenue growth for the next 3 years is 55%! I’m in, but this is one of Slack Investor’s more risky buys!
Nick Scali (NCK) +43%
(NCK– Forecast 2027: PE 18, ROE 28%, Av. Growth 14%, Slack Factor 22). Nick Scali is well known in Australia for importing and retailing furniture. They have done an excellent job of expanding their business in Australia due to their fine management skills. They expanded into the UK in 2024 and have been quietly, and efficiently, getting on with the job. Future profitability remains good (ROE 28%), and PE not too high.
Some very honourable mentions to some top results this year that didn’t quite make the nuggets. BetaShares Global Cybersecurity ETF (HACK)+38%; Resmed Technologies (RMD.AX)+38%; XRF Scientific(XRF)+37%; Wesfarmers(WES)+35%; Coles (COL) +29% and REA Group (REA) +24%.
Slack Investor Investments performance – FY 2025
After a bonanza FY 2024, this was a wild ‘Trump affected’ FY 2025. In the Australian superannuation scene, the median growth fund (61 to 80% in growth assets) did manage to return+10.5% in FY 2025.
Slack investor has just two piles of funds for his retirement – the Stable Income pile (Cash and Conservative) and an Investments Pile. The Stable income represents around 25% of total retirement funds. I used to rebalance each of my piles after every year, but the stable pile now has enough in it that, together with dividends from my investments, could supply me with enough living expenses to last out an extended (3-yr) bad run of the stock markets. Slack Investor would not be forced to sell stocks. The stable pile has again produced a moderate return of nearly 5% (inflation plus ~ 2.5%).
The Investments Portfolio rise nicely with preliminary figures showing an 18.1% rise at June 30, 2025. A good result for Slack Investor in his growth investments pile. Including the relatively low returns from my stable income pile (4.7%), overall, the weighted return on all my retirement funds grew 14.6%.
For the most part, Slack Investor concentrates his annual performance details for the much more exciting Investments pile.
For Slack Investor, the 5-yr performance is a more useful way of measuring – as it takes out the fluctuations of yearly returns. At the end of FY 2025, the Slack Investments Portfolio has a compounding 5-yr annual return of around 15%. Full results and benchmarks expected next post.
July 2025 – end of Month Update
The new financial year has started off positively for Slack Investor markets. The ASX 200 + 2.3%; FTSE 100 +4.2%; and S&P 500 +2.2%. He remains IN for all index positions.
I have taken the opportunity to adjust upwards the stop losses on all followed index markets. The prices had crept up to around 15% above their old stop losses. See Index pages for details.
All Index pages (ASX Index, UK Index, US Index) and charts have been updated to reflect the monthly changes.
