Tag: efficient portfolio

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Making sense of ETF Liquidity

In my last post, I discussed ETF liquidity risk. After the post, a subscriber to ETFMathGuy asked me to talk more about this risk and how it relates to the wide variety of commission-free ETFs now available.

Bid-ask Spreads

Bid-ask spreads are an excellent way to measure liquidity. Less liquid ETFs generally have higher bid-ask spreads. But, the liquidity of the securities held by the ETF also affects bid-ask spreads. The image below shows the distribution of bid-ask spreads for Fidelity commission-free ETFs, which I updated from my April 2019 post.

Bid-ask spread of Fidelity Commission-Free ETFs, as of 9/22/2019. Source: ETF.com, Fidelity.com
Bid-ask spread of Fidelity Commission-Free ETFs, as of 9/22/2019. Source: ETF.com, Fidelity.com

Minimizing costs

As we see from these results, there is a wide variation of bid-ask spreads. So, about half have spreads under 0.1%, and about 80% under 0.3%. For ETFs traded commission-free, these spreads are likely the largest contributor to cost of ownership. To reduce this cost, an investor can either buy-and-hold for extended periods, or choose ETFs with lower bid-ask spreads. Investors should also avoid trading ETFs close to the market open and close. Higher volatility over a typical trading day can often occur close to the market’s open and close, and can produce higher bid-ask spreads.

What about ETF liquidity during high market volatility?

It is very likely that, during periods of high market volatility, bid-ask spreads will grow. This growth is simply the result of finding a balance between supply and demand. Or, in the case of ETFs, this balance occurs when an ETF seller finds a buyer. Remember that, due to liquidity risk, we can expect a return premium over risk-free investments. If market volatility is a concern, investors should seek lower volatility investments (e.g. bonds over stocks), and/or seek lower volatility in their portfolio through diversification.

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
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September portfolios and year-to-date returns

The September 2019 optimal portfolios are now available to subscribers of ETFMathGuy. So, please log in and select your discount broker to see the effect of current market conditions on our optimal portfolios. In this post, we discuss the year-to-date returns of my personal account using the ETFMathGuy portfolios.

Year-to-date returns

Although there are still four months remaining in the year, I thought this would be a good time to talk about my year-to-date returns. I have personally been using the moderate risk level portfolios in my Fidelity brokerage account since the beginning of the year. Monthly returns, based on the balance in my account, appear below.

Monthly returns using commission-free Fidelity ETFs and the moderate ETFMathGuy risk level.
Monthly returns using commission-free Fidelity ETFs and the moderate ETFMathGuy risk level.

To better understand the returns in my account that maximizes return for a portfolio with volatility half-way between stocks and bonds, I created the next table. Here, you can see that the ETFMathGuy portfolio return so far in 2019 is 14.1%, with a monthly volatility of 2.1%. To one decimal place, the same volatility is seen if an investor had simply maintained a 50% stock and 50% bond fund, re-balanced each month. But, the 50/50 portfolio would have seen a return of only 13.7%

ETFMathGuy portfolio returns are higher than a 50/50 stock/bond portfolio, with the same volatility.
ETFMathGuy portfolio returns are higher than a 50/50 stock/bond portfolio, with the same volatility.

Key takeaways

The ETFMathGuy portfolios appear to be behaving as expected. That is, they have about the same amount of volatility as their benchmark. However, I realized an additional return of about 0.4% in my brokerage account. For a $100,000 portfolio, that is an additional gain of about $400. I will revisit my portfolio’s performance again at the end of the year, so please stay tuned!

The future of ETFMathGuy

For the near future, I will continue to provide the optimal portfolios without a fee. But, in the meantime, I decided to begin accepting donations, if you are so inclined. Please find the donate button at the bottom of the “Join Us” page. For your convenience, it also appears below.

Thanks for supporting ETFMathGuy!

Thank you all for your interest and support in 2019. I hope you all had a wonderful labor day weekend!

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
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August 2019 portfolios are now available based on our current low volatility markets

The August 2019 optimal portfolios are now available to subscribers of ETFMathGuy. So, please log in and select your discount broker to see the effect of current market conditions on our optimal portfolios. In this post, we highlight the effect of the recent low market volatility on portfolio turnover.

Low volatility is here, for now…

As discussed in yesterday’s Wall Street Journal article entitled “Markets are Eerily Quiet Right Now“, market volatility has been quite low recently. For the past 35 days, the S&P 500 hasn’t changed by more than 1%. Consequently, the August 2019 portfolios won’t differ much from the previous month. For instance, consider the Vanguard moderate portfolios generated over the past two months.

Vanguard optimal portfolios the Month of July, 2019, Moderate Risk Level
Vanguard optimal portfolios the Month of July, 2019, Moderate Risk Level
Vanguard optimal portfolios the Month of August, 2019, Moderate Risk Level
Vanguard optimal portfolios the Month of August, 2019, Moderate Risk Level

As these simpler portfolios demonstrate, low volatility produces less turnover. Here, none of the portfolio weights changed by more than a few percent.

Where will the stock and bond markets go from here?

Frankly, we don’t know, as we believe that markets are generally efficient. Market volatility will certainly return to a more typical level at some point in the future. But, when will this occur? Perhaps volatility will pick up when many professional traders return from summer vacation? Or, perhaps markets will stay quiet until the start of the next earnings season?

In any event, when market volatility does return, our monthly portfolio updates will pick up these dynamics and generate a new set of optimal portfolios. We hope you will stay tuned!

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
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Fundamentals of Fixed Income ETFs

A recent Wall Street Journal article nicely summarized the fundamentals that define fixed income ETFs. Understanding these fundamentals can be very helpful in using them in a portfolio seeking the stability of bonds.

Quality, maturity and pricing of Bond ETFs

Two fundamental components that define a fixed income ETF are credit quality and maturity. Remember that fixed income ETFs are a collection of individual bonds. Also, a bond is a loan with fixed payments. That is why bonds are often referred to as “fixed income” investments. Credit rating firms, like Moody’s or Standard & Poor’s, evaluate the riskiness of the loans. Maturity measures the time until the original loan amount is due.

So, there is a strong relationship between a bond’s yield and these two fundamental components. Generally speaking, when a bond is first created, yields are higher under either (i) a lower credit rating or (ii) longer maturity. Once a bond is issued and makes its way into a bond ETF, the price of the bond ETF can then change. But, the underlying bonds continue to issue a stream of constant payments. The only significant exception occurs when the corporation making the bond payments enters bankruptcy protection.

Consequently, prices tend to decrease when demand is low, and investors prefer riskier assets. Conversely, prices of fixed income ETFs generally go up when investors seek less risky assets.  Yields are then inversely related to bond prices, so higher prices lead to lower yields.

What else can affect a bond’s price?

Interest rates can also affect bond prices. Short term rates set by the federal funds rate appear in the image below. As this chart shows, short term rates continue to climb steadily. But, these rates remain below typical levels seen in the past 20 years.

Federal funds rate for the past 20 years.
Federal funds rate for the past 20 years.

So, are bonds a bad investment as short-term rates go up?

This is an important question with no easy answer. But, few would argue that a diversified portfolio benefits from having some bond investments. So, the question should be “what part of the bond market is most suitable to your goals? ” Given there are bond ETFs covering a wide range of maturities and riskiness, there is no shortage of fixed income ETFs for investors to pick from. To this end, we encourage you to subscribe to ETFMathGuy to see how we use a wide variety of commission-free bond ETFs in efficient portfolios.

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
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July 2019 optimal portfolios are now available and discussed in terms of recent and long-term market trends

The July 2019 optimal portfolios are now available to subscribers of ETFMathGuy. So, please log in and select your discount broker. In this post, we will also discuss more about risk and return in an optimal ETF portfolio.

As we mentioned in our last post, there are benefits to having more ETFs to choose from during the portfolio construction process. We showed the potential to increase expected returns. In this post, we highlight another important element – risk.

Risk and Return

Risk and return are two fundamental issue that are important to consider when investing in an ETF portfolio. The chart below shows risk (horizontal axis) and return (vertical axis). Here, we define risk as the annual volatility, measured by the standard deviation of daily returns. We evaluate risk and return using a multi-year sample period selected from our rigorous backtesting process. As this chart shows, the optimal portfolios reside at risk levels between the bond market (ticker: AGG) and stock market (ticker:IVV). And, these portfolios are efficient, since they were selected to maximize the expected return.

Risk (Volatility) and Expected Return in the July 2019 optimal portfolios. Notice that at each risk level (conservative, moderate and aggressive), different ETFs offered by different discount brokers leads to different expected returns.
Risk (Volatility) and Expected Return in the July 2019 optimal portfolios. Notice that at each risk level (conservative, moderate and aggressive), different ETFs offered by different discount brokers leads to different expected returns.

As this chart shows, cash can be nearly risk-less, based on volatility, but offers returns that may not exceed long-term inflation. Bonds can offer more of a potential return, but with added risk. Even more return is possible from the stock market for those willing to accept additional risk.

What about the last 6 months?

Indeed, it is true that the first half of 2019 has been very good for both stocks and bonds. Based on a recent Wall Street Journal article, “… S&P 500 finished Friday up 17% this year, marking its best first half since 1997 “. According to the site ETFreplay.com, and including dividends, the stock and bond market are up 18.3% and 5.8%, respectively, this year. Will this trend continue? I personally doubt anyone really knows, as I believe that markets are generally very efficient. A better question may be “What level of risk” or “How much exposure” do you want your investments to have in various parts of the market. To end this post, I’ll leave you with one (of many) famous quotes by Warren Biuffet.

“The stock market is a device to transfer money from the impatient to the patient.”

Warren Buffett

We hope you found this post educational!

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
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Opportunities from more commission-free ETFs

Earlier this month, Fidelity followed through on its promise made earlier in the year. They now offers over 500 commission-free ETFs. This increase puts them in 2nd place for most commission-free ETFs offered by the five discount brokers analyzed each month by ETFMathGuy. The leader is still Vanguard, with approximately 1,800. Our chart below shows the update for Fidelity’s offering, where the Vanguard count only represents Vanguard ETFs. (We will be updating our Vanguard database soon.)

Vanguard* count only includes Vanguard ETFs. Vanguard now offers approximately 1,800 ETFs commission-free.
Vanguard* count only includes Vanguard ETFs. Vanguard now offers approximately 1,800 ETFs commission-free.

What is the benefit of more commission-free ETFs in a portfolio?

The most obvious benefit is the opportunity to access portions of the market not previously available. I demonstrated this benefit in previously published research entitled “ETF trading strategies to enhance client wealth maximization“. Here at ETFMathGuy, we have seen these opportunities first hand in our optimal portfolios. Each month, we’ve developed portfolios based on the current number of ETFs offered by each discount broker. We have also calculated the expected return associated with these portfolios, and there appears to be a potential opportunity. When constructing portfolios with more ETFs available, we see in the figure below that expected returns generally improve. Note that the pair of dots next to the portfolios are the result of excluding commission-free municipal bonds when generating a portfolio suitable for an IRA.

Expected return of ETFMathGuy optimal portfolios tend to rise with more commission-free ETFs available

More commission-fee ETFs may not always be beneficial

This figure shows that having more options to invest can improve the likelihood of generating higher returns. But, the additional ETFs must be sufficiently different those that are already offered. They must also have the potential to generate higher returns. Ameritrade seems to be accomplishing the most with their approximately 300 ETFs. Conversely, ETrade offers many more ETFs than the 59 offered by Vanguard, but doesn’t appear to increase expected returns by much in the portfolios constructed by ETFMathGuy .

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
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Risks and Opportunities in Fixed-Income ETFs

Fixed-income ETFs (also known as bond ETFs) continue to grow at a rapid pace. Bond ETFs now exist across a wide spectrum of characteristics. Looking for shorter or longer maturity? Or, how about higher yield (aka junk bonds) versus investment grade or Treasury bonds? ETFs even cover the bond markets in both emerging and developed economies worldwide.

At this rate, State Street Global Advisers predicts that assets in bond ETFs could reach $1 trillion by the end of 2019.

What is driving demand?

Like stock-based ETFs, low cost is a big driver. Greater tax efficiency, as we discussed in detail in a post earlier this year, over bond mutual funds helps too. But, the biggest demand could be simply choice.

“Investors really have a lot of choices — more than they’ve had in the past five years. “

Noel Archard, State Street Global Advisors

Liquidity concerns?

Our opinion at ETFMathGuy is that liquidity concerns are minimal. In fact, real-time ETF price availability helps the price discovery process, and should improve liquidity.

“Fixed-income ETFs have been tested more than once over the past 10-11 years, without any major issues. “

Rich Powers, Vanguard

The current focus of fixed-income ETFs

The current focus of fixed-income ETFs is now in portfolio construction. Here at ETFMathGuy, we are helping to lead this initiative by building portfolios to take full advantage of what fixed-income ETFs have to offer. For instance, in the May taxable conservative portfolio for Vanguard, we show a portfolio with a a variety of fixed-income ETFs in it. We also seek to include higher volume alternative ETFs, to mitigate any possible liquidity issues and minimize the bid-ask spread trading costs.

May 2019 taxable optimal portfolio for risk conservative investors, by ETFMathGuy.
May 2019 taxable optimal portfolio for risk conservative investors, by ETFMathGuy

In conclusion, fixed-income ETFs are in important core component of an optimally diversified portfolio. We invite you to browse through the current month optimal portfolios to see the importance of bond ETFs.

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.
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April 2019 Optimal Portfolios are Now Available to ETFMathGuy subscribers

The 2019 optimal portfolios for the month of April are now available to subscribers of ETFMathGuy. Just log in and select your discount broker.

You can now view the current portfolios for the five discount brokers analyzed by ETFMathGuy. These portfolios cover over nearly 1,500 ETFs currently offered commission-free from Ameritrade, ETrade, Fidelity, Schwab and Vanguard.

What’s new? Full ETF names, portfolio & benchmark statistics, and portfolios for taxable and IRA accounts.

So, what’s new this month? First, we’ve added the full name of the ETF, so that subscribers don’t need to look up individual ticker symbols. For instance, the portfolios continue to favor the utility sector. So, for example, the Vanguard portfolio lists both the ticker “VPU” and its full name, “Vanguard Utilities ETF”, in the portfolio tables.

New information available on 2019 optimal portfolios from ETFMathGuy
New information available on 2019 optimal portfolios from ETFMathGuy

Second, we’ve added portfolio annualized statistics for expected return and volatility. Now, it is clear what the risk levels are set to in portfolio construction, regardless of the discount broker. For the month of April, annualized risk levels were

  • Conservative: 5.7%
  • Moderate: 8.3%
  • Aggressive: 11.0%

Third, we’ve added benchmark statistics. These measures are an excellent way to understand how the optimal portfolios match up to the broad stock, bond and cash benchmarks used by ETFMathGuy.

Last, but not least, we’ve run our portfolio construction process to include and exclude municipal bond ETFs. As mentioned in our recent post, brokers like Fidelity often restrict the use of municipal bond ETFs in IRA accounts. The summary table at the top of the current portfolios now indicate either Taxable or IRA (no munis).

We hope you find these 2019 optimal portfolios insightful and educational! If you enjoyed reading this post, we hope you will share it with others in your personal or professional network. Just click one of the icons below. And, for a limited time, subscriptions are free!

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.

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ETFs to Mitigate Volatility and Enhance Diversification

Last week’s Wall Street Journal noted that Charles Schwab Corp. and Fidelity Investments have doubled the number of commission-free ETFs they offer.

This is good news for individual investors! More investment options can help enhance diversification and consequently, mitigate volatility.

Here at ETFMathGuy, we build portfolios to do just that…minimize volatility using our proprietary software. In fact, our approach addresses the exact point made by Ben Johnson’s quote, director of fund research at Morningstar. In the article, he states:

“As people stop obsessing over fees, they’re coming to realize that what matters most is portfolio construction. “

Quote from Ben Johnson, Director of Fund Research at Morningstar

We hope you enjoy reading this WSJ article!

For notifications of the latest commentary of ETF investing, please join us with a free membership.

ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.


ETFMathGuy is a subscription-based education service for investors interested in using commission-free ETFs in efficient portfolios.