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Bond ETFs and Money Market Funds

One of our favorite WSJ writers this week provided a critical analysis of money market funds, which many individual investors use to hold their cash. In this post, we discuss the similarities and differences between money market funds and ETFs that invest in treasury bills.

The purpose of money market funds

One purpose of a money market fund in a taxable brokerage account is to provide a place for cash to stay after it is transferred in from an outside source, like a bank checking or savings account. It also serves as a holding place for securities after they are sold. But some investors are also using them as a safe haven to avoid sharp changes in the stock market. Unfortunately, these funds tend to charge relatively high fees compared to ETFs that provide a similar safe haven. According to this WSJ article, the average money market fund charges 0.51% in fees and yields 3.89%.

But you’re probably getting ripped off on your money-market funds—and it’s one of the biggest heists on Wall Street.

Jason Zweig, WSJ columnist, May 2, 2025

Brokerages also use money market funds as a “sweep” account for investors. So, investors can benefit from this feature by being able to write checks against these balances. However, the cost and convenience of assets in these funds, which often invest in short-term U.S. treasury bills, means investor returns underperform when compared to investing in an ETF with a similar level of risk.

Very low risk ETFs

Bond ETFs still have risks, depending on the type of bonds included in them. But some bond ETFs can provide investors with direct access to short-term treasury bills, which some would refer to as a good proxy for a risk-free rate. The list below shows several of these types of ETFs, along with their expense ratio and assets under management.

ETFTickerExpenseAssets Under Management
iShares 0-3 Month Treasury Bond ETFSGOV0.09%$45 B
SPDR Bloomberg 1-3 Month T-Bill ETFBIL0.14%$47 B
iShares Short Treasury Bond ETFSHV0.15%$22 B
Three large ETFs investing in short-term U.S. treasury bills

Although the expense ratios are all quite similar, it is clear that the return of SGOV is likely to be the highest. The figure below shows this is true and that all of these ETFs had a slow and steady investment return over the last three years.

Total returns for the last three years of short-term U.S. treasury bill ETFs were higher than the average money market fund.
Total returns for the last three years of short-term U.S. treasury bill ETFs

So, investors willing to take the time to invest their money market funds into one of these ETFs can often earn very close to the current U.S. treasury bills yield, which in the last year was about 4.8%. Additionally, these ETF returns may be exempt from state taxes, unlike money market funds. Investors not needing the convenience of money market funds may wish to consider these ETFs as an alternative safe haven.

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How ETFs responded to tariffs in the news

Recent news about U.S. tariffs has impacted ETFs representing several asset classes. This post discusses both positive and negative market effects. We close with some historical perspectives to help ETF investors make educated decisions that are best for their situation.

Broad-based ETF recent performance

To see how recent tariff news has impacted several broad-based ETFs, we considered the following list.

  1. iShares Core S&P 500 ETF (ticker: IVV)
  2. iShares Core Total US Bond (ticker: AGG)
  3. SPDR 1-3 Month T-Bill ETF (ticker: BIL)
  4. iShares Barclays Long-Term Treasury (ticker: TLT)
  5. iShares MSCI EAFE (ticker: EFA)

The first ETF on this list tracks large-cap U.S. stocks. The second one follows intermediate-term U.S. treasuries and investment-grade corporate bonds. The third and fourth ETFs in our list consist entirely of short and long-term U.S. treasuries, respectively. The fifth and last ETF is an international stock ETF composed of “…developed-market securities based in Europe, Australia and the Far East“. The image above shows the total return of these ETFs for 2025.

Stock ETFs and tariffs

The sharpest downturns in the prices of ETFs due to recent announcements on tariffs appear to be in domestic and international stocks. However, since international stocks started the year stronger, they are currently at a small loss for the year. On the contrary, domestic stocks have produced a more significant negative return so far this year.

Bond ETFs and tariffs

Bond markets are typically less volatile than the stock market. In particular, short-term treasury bills returns largely follow the federal funds rate, as shown by the ticker BIL. But intermediate and long-term bond fund prices appear to have benefitted from the selloff in stocks, likely in a “flight to safety“. While investors holding bond ETFs now benefit from higher prices, yields on the underlying bonds are decreasing. If the yields decrease significantly enough, an inverted yield curve may result, which could be a sign of an economic recession. Time will tell if the leading indications of the market foreshadow such an economic downturn.

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2024 Year-end returns of broad index and sector ETFs

With 2024 officially over, it is a good time to reflect on 2024 equity ETF returns. Like our mid-year post from 2024, this post highlights the top and bottom-performing ETFs by sector. We’ve added the Nasdaq-100 ETF (ticker: QQQ) 2024 returns for comparison. We also discuss what themes likely contributed to this performance.

S&P 500 Sector Returns, S&P 500 and Nasdaq ETF total returns, 2024

Top and bottom-performing sector ETFs for 2024

As the chart above shows, communication services (ticker: XTL) was the top-performing sector ETF of 2024, with a nearly 35% return. This may be surprising, given it was the worst-performing sector ETF in the 1st half of 2024. It appears that this ETF’s exposure to artificial intelligence (AI) and data centers contributed significantly to its total return for 2024. The healthcare sector ETF (ticker: XLV) was the worst-performing sector of the S&P 500 index. Considered a more defensive sector, investors were not looking for this approach in 2024. However, lower prices in the healthcare sector, relative to other sectors in the S&P 500, may bode well for healthcare ETF investors in 2025.

The S&P 500 has another strong year in 2024

For ETF investors who selected the broad-based S&P 500 index (ticker: IVV), this was another strong year, with a total return of nearly 25%. The past two years have been the best returns for this broad-market index in the past 25 years. So, investors looking for a diversified equity ETF did well in 2023 and 2024 by investing in an S&P 500 index ETF.

S&P 500 Index performance since 1995. Source: WSJ.

2025 ETF Outlook

As we noted in previous outlooks at the start of the year, there is plenty of uncertainty going into 2025. With a new political party in the White House, and the Fed still considering the potential of future rate cuts, 2025 should be another challenging year for ETF investors.

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The biggest ETF may be changing

The largest and oldest ETF is the SPDR S&P 500 ETF Trust (ticker: SPY), with $624 B in assets under management. However, two other S&P 500 ETFs are close behind. The Vanguard S&P 500 ETF (ticker: VOO) and iShares Core S&P 500 ETF (ticker: IVV) have $588 B and $582 B of assets under management. In this post, we discuss the likely change in the largest ETF, what may be contributing to it, and why it matters to investors.

In this post, we discuss the likely change in the largest ETF, what may be contributing to it, and why it matters to investors.
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The oldest ETF, SPY

The SPDR S&P 500 ETF Trust, commonly referred to as SPY, has been around the longest of any ETF. With an inception date of January 1993, SPY created an entirely new way to invest in a passive index that offered greater tax efficiency than mutual funds. As we wrote about a few years ago, the taxable gains between ETFs and mutual funds can be significant. This tax inefficiency makes no difference for Individual Retirement Accounts (IRAs). But for taxable account holders, significant tax drag is drawing investors into ETFs. Several mutual funds are converting to ETFs.

The two other S&P 500 index ETFs

ETFs from Vanguard and iShares also offer ETFs that track the S&P 500 index. This index is very popular with many investors as it diversifies across many equity sectors. But, because of its weighting by market capitalization, some companies hold more significant influence. Nevertheless, it remains a popular index for investors. And, with an expense ratio of 0.03%, these ETFs offer this exposure with very little cost. These expense ratios are in stark contrast to SPY, with its expense ratio of 0.09%. While still small, the expense ratio of SPY is 3X larger, helping VOO and IVV to grow faster than SPY.

Another driver of ETF growth

So, investors seem to be preferring lower expense ratio ETFs. VOO’s unique structure may also be contributing to its popularity. But, this benefit, which Vanguard patented, has expired in 2023. So, IVV and VOO may continue to grow at a similar rate. For individual investors, the small difference between the two ETF structures likely makes little difference in meeting their investment objectives.

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Stock and bond ETFs reverse recent trends

Economic data on the rising unemployment rate and corporate missed earnings appear to have contributed to the recent reverse of the upward trend in stock ETFs. This post explores this and other recent trends by highlighting selected ETFs that passively track major stock and bond indices.

NASDAQ market correction

As this WSJ article recently highlighted, the NASDAQ (ticker: QQQ) is officially in “correction” territory now. We define a correction as when prices drop by more than 10% from a recent high. Missed expectations from major investments in Artificial Intelligence by tech leaders Microsoft and Alphabet may have contributed. Nevertheless, the S&P 500 index ETF (ticker: IVV) is still up over 12% year to date, as the chart below illustrates. While returns for these two stock ETFs are lower than their mid-year peak, they are still good relative to other markets, like bonds.

Recent trends in stock and bonds ETFs.
Stock ETFs recently started a downward trend, but bond ETFs started an upward trend.

Recent trends in Bond ETFs

Investors appear to be quickly moving away from stock ETFs and into bond ETFs. This so-called “flight to safety” is clear in the image above in the recent upward trends in bond ETFs. The intermediate-term bond ETF, iShares Core U.S. Aggregate Bond ETF(ticker: AGG), shows some of this new trend. This trend is amplified when a longer-term bond ETF, like iShares 20+ Year Treasury Bond ETF (ticker: TLT), is viewed.

What is next?

The Fed left short-term interest rates unchanged after meeting this past week. But, a rate cut is looking more likely, as inflation is down to 2.5% now, edging closer to the Fed’s target of 2%. The Fed’s next meeting is in September, so investors will be eagerly awaiting the outcome of this important meeting. In the meantime, investors may continue to invest in bond ETFs to potentially hedge any additional losses in stock ETFs.

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2024 Mid-Year Review of Stock-Based ETFs

Welcome to our 2024 mid-year review of stock-based ETFs. Like our previous mid-year reviews, we will discuss here how various sectors of the market performed in the last six months using ETFs. Consequently, we will show a significant performance difference between various sectors of the S&P 500.

Review of the 11 Sectors of the S&P 500

To review, recall that there are 11 sectors in the S&P 500 as shown below. So, while some of these sectors have several ETFs tracking them, we choose the ETFs in parentheses due to their long history in the markets.

  • Information Technology (XLK)
  • Health Care (XLV)
  • Financials (XLF)
  • Consumer Discretionary (XLY)
  • Communication Services (XTL)
  • Industrials (XLI)
  • Consumer Staples (XLP)
  • Energy (XLE)
  • Utilities (XLU)
  • Real Estate (IYR)
  • Materials (XLB)

Then, using this list and reinvesting dividends, we see that some sectors had total returns that did very well in the first half of 2024. However, a couple sectors, such as the Real Estate and Communication Services, lost value in the first six months of 2024.

2024 Mid-year review of S&P 500 sector ETFs. Total Returns. Source: https://www.etfreplay.com/charts.aspx
2024 Mid-year review of S&P 500 sector ETFs. Total Returns. Source: https://www.etfreplay.com/charts.aspx

Best ETF investment performers of 2024

As the chart above shows, the technology sector continues to outperform the broader index. As our favorite WSJ writer recently described, the three largest stocks in the S&P 500 (Microsoft, Apple, and Nvidia) contributed more than 20% of the total market value of the index. In fact, eight of the top ten stocks in the S&P 500 index are technology stocks. This outperformance still appears to be attributable to the substantial investor interest in artificial intelligence (AI) and how this interest is impacting other sectors, like utilities.

Outlook

While we won’t try to estimate where markets will go from here, it does seem reasonable that stock-picking to beat the S&P 500 will continue to be challenging. Thus, the high concentration of technology stocks in this index continues to propel the performance of this market cap weighted index. As a result, if the technology sector does falter, the diversification of this index may help reduce volatility.

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Utility ETFs outperforming

Returns of utility ETFs have been particularly strong over the past three months, exceeding the returns of the S&P 500 index ETF by over 10%. Our favorite WSJ writer mentioned this situation recently, along with some explanations. In this post, we explore other aspects worth considering with utility ETFs.

What is in a utility ETF?

Several ETFs focus their holdings on utility companies. The largest is the Utilities Select Sector SPDR Fund (ticker: XLU), which is over twice as large as the next largest utility ETF, the Vanguard Utilities ETF (ticker: VPU). But, these ETFs track two different indices. XLU tracks the S&P Utilities Select Sector Index, while VPU tracks the MSCI US Investable Market Utilities 25/50 Index. Consequently, XLU has 31 holdings, less than half of the 67 in VPU. However, examining the top ten holdings in each ETF reveals they are very similar. So, not surprisingly, the year-to-date returns for both of these ETFs are identical, at 12.25%.

Top Ten Holdings of the two largest Utility ETFs, as of May 31, 2024. Source: etf.com

What is driving energy demand?

As Jason Zweig’s noted in his recent article, Artificial Intelligence (AI) may be playing a role. Training AI models are very energy-intensive. And, as we’ve written about before, the largest companies in the S&P 500 are actively involved in AI development. But, Maria Pope, CEO of Portland General Electric, believes there are three big drivers increasing electricity demand in the U.S.

  • Manufacturing returning to the U.S.
  • Government support of semiconductor production.
  • Data centers and their need to train and run AI models.

Will this demand remain elevated for the foreseeable future? And, how will the markets respond? ETF investors should consider these points when evaluating sector ETFs like those focused on utilities.

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Bond funds continue to challenge investors

Bond funds continue to challenge investors seeking less risk from the stock market, but also retaining buying power. My favorite writer Jason Zweig also wrote about this recently, along with many of his readers’ opinions. In this post, we illustrate what’s been happening over the last year since we last wrote about bond ETFs.

Bond funds and their time to maturity

Bond fund performance over the last year appears to still be heavily dependent on their time to maturity. As the image below shows, the total return of the shortest-term U.S. treasury bill ETF (ticker: BIL) was gradual and positive. The intermediate-term bond fund (ticker: AGG) nearly broke even for the last 12 months. The long-term bond fund (ticker: TLT) was most sensitive to rising interest rates and had the largest loss and most volatility over the past 12 months.

Shorter-term bond ETFs continue to perform well with low volatility. Source: etfreplay.com
Shorter-term bond ETFs continue to perform well with low volatility. Source: etfreplay.com

Bond ETFs with shorter terms to maturity

Staying with shorter-term ETFs has become much easier with several options for investors to consider. Here is a short list to consider:

  • SPDR Bloomberg 1-3 Month T-Bill ETF (ticker: BIL)
  • iShares Short Treasury Bond ETF (ticker: SHV)
  • Goldman Sachs Access Treasury 0-1 Year ETF (ticker: GBIL)
  • iShares 0-3 Month Treasury Bond ETF (ticker: SGOV)

Referring to the image above, we see that the SPDR Bloomberg 1-3 Month T-bill ETF returned 5.3%. And, as we have written about previously, this return is exempt from state taxes. This exemption is significant for states like California and Hawaii, but irrelevant for states like Texas and Florida that have no state income tax. In any case, with current inflation around 3%, these short-term investments are helping ETF investors to maintain and slightly grow their buying power.

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AI and the S&P 500

Artificial intelligence (AI) continues to impact markets like the S&P 500 in 2024. If you are already invested in broad-based ETFs, you may be invested in AI, whether you realize it or not. In this post, we discuss how AI companies are influencing cap-weighted indices.

close up photo of monitor
Photo by energepic.com on Pexels.com

Fear of Missing Out

Jason Zweig at The Wall Street Journal recently wrote an article about one of the leading AI companies Nvidia. In his article, he noted how this company was now more than 4% of the S&P 500 index, thanks to its recent rise in share price.

And, other companies working in the AI space are also seeing very positive share price increases, like Microsoft. In fact, according to this page on ETF.com, Microsoft and Nvidia now account for about 11.5% of the S&P 500 index. This weighting of AI in the S&P 500 is due to the S&P 500 being a “cap-weighted” index.

A stock market index wherein each component is weighted relative to its total market capitalization

What is a Capitalization-Weighted Index? source: Corporate Finance Institute (CFI)

So, even if an investor thinks they may have “missed out”, they have not if they owned an S&P 500 ETF or some other cap-weighted index fund.

Other firms in the S&P 500

Because the S&P 500 is cap-weighted, the firms in this index become more (or less) significant as their market capitalization increases (or decreases). The image below shows the current top-10 holdings in the S&P 500 ETF (ticker: IVV). Note that over half of those in this list are tech firms that are at the forefront of AI. In fact, for investors in Apple, there may not be enough investment in AI.

Top 10 holdings in the S&P 500 ETF IVV. Source: etf.com
Top 10 holdings in the S&P 500 ETF IVV. Source: etf.com

ETF investor options to embrace or avoid AI

Hopefully, ETF investors realize that they may already have AI investments, if they are invested in one of the ETFs tracking the S&P 500, like VOO, IVV, or the oldest ETF SPY. Alternatively, ETF investors wishing to embrace AI more may seek tech-centric ETFs, like XLK. Or, by seeking dividend-paying stocks not seeking growth from AI, an ETF investor may seek funds like DVY or VTV. Investor preference for growth in the AI space will likely affect investments for many years to come.

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2023 ETF Year in Review and 2024 Outlook

The 2023 year was generally good for the stock market. We wrote previously about the possible market performance during the 3rd year of a presidential term, and 2023 didn’t disappoint. The total return, including dividends, for the S&P 500 ETF (ticker: IVV) was 26.3%, according to ETFReplay.com. However, 2023 ETF equity returns varied significantly across the eleven S&P 500 sectors. We will dive into these sectors in this post.

2023 ETF Returns by Sector

The chart below shows the total returns in 2023 for the 11 sectors in the S&P 500. As we can see, two sectors beat the S&P 500. These were the technology and consumer discretionary sectors. Artificial intelligence was a big theme in 2023 thanks in part to ChatGPT, which explains why the technology sector did so well. Consumer discretionary returns could be explained by continued pent-up demand as the impact of the global pandemic diminishes.

2023 ETF returns
2023 S&P 500 Index and Sector Total Returns.
Source: etfreplay.com

Unfortunaltely, nine sectors of the S&P 500 performed worse than the overall index. Industrials, materials, financials, and real estate did produce double-digit returns, but still underperformed the index. Also, health care, energy, consumer staples, and communication services all were nearly flat for the year. The worst-performing sector was utilities, likely due to the high levels of debt many utilities carry and how refinancing this debt in 2023 likely became much more expensive.

2024 ETF Outlook

So, where will markets go from here? Referring back to the presidential cycle analysis quoted above, the 4th year of a presidency is the second best for total returns of the S&P 500. The political uncertainty associated with year four of a presidential cycle is likely to blame. Many investors may want to see how elections this fall turn out before making larger investment decisions. And, investors may also be looking for indications from the Federal Reserve on future decisions on interest rates. Regardless of what happens on these fronts, 2024 is looking to be a very exciting year for ETF investors.

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 tax-efficient investing with ETFs