Tag: backtesting

Posted on

ETFs and Emerging IPOs

The ecosystem of exchange-traded funds (ETFs) tracking the S&P 500—notably IVV, VOO, and SPY—remains one of the most efficient ways for investors to gain diversified U.S. equity exposure. These funds, which we have discussed before, often serve as a foundation for many retirement investment portfolios. The S&P 500 passively replicates a float-adjusted, market-cap-weighted index that already reflects about 80% of U.S. market capitalization. However, the definition of “the market” itself is evolving rapidly as mega-scale private firms approach their Initial Public Offerings (IPOs).

S&P 500 ETFs may soon include large private companies with near-term IPOs from SpaceX, OpenAI, and Anthropic
S&P 500 ETFs may soon include large private companies with near-term IPOs from SpaceX, OpenAI, and Anthropic

Big IPOs coming soon

A key emerging issue is the IPOs of currently private companies like SpaceX, OpenAI, and Anthropic. Will they enter the index more quickly than historical precedent? Traditionally, S&P 500 inclusion required at least one year of public trading, sufficient float, liquidity, and sustained profitability. Yet, according to a May 3 Wall Street Journal article by James Mackintosh, index providers are considering changes. Specifically, they may waive profitability requirements and accelerate timelines for “megacap” IPOs. These changes will help meet investor demand for access to high-profile growth companies. Complementary reporting indicates proposals to reduce the waiting period from 12 months to as little as six months and relax earnings criteria entirely for the largest firms.

Such changes would materially affect ETF composition. Because the S&P 500 is market-cap weighted, the rapid inclusion of trillion-dollar entrants could increase index concentration, amplifying the dominance of a small number of firms. The Magnificent 7 already contribute to this issue in today’s top-heavy index structure. More large entrants could raise expected returns if these firms deliver strong growth, but also increase volatility and drawdown risk if valuations prove fragile.

ETF Investors take notice

For ETF investors, the implications may extend to taxation. While ETFs like IVV, VOO, and SPY are generally tax-efficient due to in-kind creation/redemption mechanisms, rapid index turnover—especially around large IPO inclusions—can trigger capital gains distributions in some cases. Additionally, investors in taxable accounts may face indirect tax consequences if funds must rebalance aggressively to incorporate newly eligible megacaps.

In sum, S&P 500 ETFs remain low-cost, core portfolio holdings, but their future risk-return profile may shift. The potential fast-tracking of firms like SpaceX, OpenAI, and Anthropic reflects a broader transition: from a backward-looking index grounded in profitability to a more forward-looking benchmark shaped by scale, narrative, and investor demand.

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
Posted on

Geopolitical Risks and ETFs for diversification

Geopolitical risks—whether from armed conflict, trade disputes, sanctions, or shifting alliances—can quickly ripple through global markets. For investors, the challenge is not predicting every headline, but building portfolios resilient enough to withstand them. Exchange-traded funds (ETFs) offer a practical and efficient way to manage these risks through diversification, liquidity, and targeted exposure to major economic sectors.

As Geopolitical Risks rise, ETFs may offer opportunities for diversification.
As Geopolitical Risks rise, ETFs may offer opportunities for diversification.

Energy and Financial Sectors

Sector ETFs, in particular, allow investors to adjust allocations in response to evolving geopolitical conditions. For example, during periods of conflict or supply disruption, energy prices often rise. An ETF like the Energy Select Sector SPDR Fund (XLE) provides diversified exposure to major U.S. energy producers and services firms. Rather than betting on a single oil company, investors gain broad participation in the sector. ETFs like this help reduce company-specific risk while maintaining exposure to a potential geopolitical tailwind.

Financials also react differently depending on the nature of the crisis. Rising defense spending or inflationary pressures may boost interest rates, supporting bank profitability. The Financial Select Sector SPDR Fund (XLF) offers diversified access to large U.S. banks, insurers, and capital markets firms. In contrast, sanctions or global slowdowns can pressure multinational lenders, underscoring why diversified sector exposure from ETFs is preferable to concentrated stock positions.

Other Sector ETFs

Technology presents a more nuanced case. Heightened tensions—particularly between major economies—can disrupt semiconductor supply chains and global trade. Yet long-term digital transformation often continues regardless of short-term instability. The Technology Select Sector SPDR Fund (XLK) spreads exposure across hardware, software, and IT services leaders, balancing cyclical and structural growth drivers.

Beyond these sectors, investors can use utilities, healthcare, consumer staples, or defense-focused ETFs to dampen volatility further. Defensive sectors such as the Utilities Select Sector SPDR Fund (XLU) and the Consumer Staples Select Sector SPDR Fund (XLP) often hold up during uncertainty because demand remains relatively stable.

Conclusions of ETF investing to manage geopolitical risks

Ultimately, ETFs help address geopolitical risk not by eliminating volatility, but by potentially reducing it through diversification into key sectors. Their transparency, intraday liquidity, and broad diversification allow investors to rebalance efficiently as conditions evolve. In a world where geopolitical shocks can emerge overnight, sector ETFs provide a flexible toolkit for navigating uncertainty without abandoning long-term investment discipline.

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
Posted on

Gold and Silver as Safe Haven? Volatility is Back

Investors often turn to gold and silver in times of macroeconomic uncertainty. Market participants often view these precious metals as traditional “safe haven” assets that preserve value when equities falter or inflation worries spike. In early 2026, this narrative took center stage. Both metals surged to multi-year highs amid geopolitical tensions, a soft U.S. dollar, and rising inflation expectations. However, the last week of January 2026 brought a stark reminder that even safe havens can experience intense volatility. In this post, we view this risk through the lens of liquid instruments in exchange-traded funds (ETFs).

📊 Glimpse at GLD & SLV Performance

GLD and SLV are two ETFs that track the spot price performance of gold and silver. SPDR Gold Shares (GLD) is the largest gold ETF. It is widely used to proxy gold price exposure. Similarly, iShares Silver Trust (SLV) is the premier silver ETF, reflecting broader investor positioning in silver. Over the week ending January 31, both ETFs experienced sharp swings. GLD dipped from recent highs, while SLV posted even larger percentage moves. This dip reflected silver’s historically higher volatility and tendency to amplify market sentiment shifts.

📉 Late-January ETF Safe Haven Volatility

Data from the week of January 12–18 shows how sharply these assets have been moving.

  • GLD (Gold) demonstrated an intra-week range of about ~2.35 %. Its annualized volatility of ~13 % over this week indicated relatively contained swings for gold historically—even as spot prices rose.
  • SLV (Silver) exhibited an intra-week range above ~11.5%. Its annualized volatility above ~75 % over this week underscored silver’s tendency for much larger price oscillations.

In other words, silver’s volatility, especially in extreme market episodes, can be much more than that of gold, reinforcing the idea that SLV carries greater short-term risk for traders and investors alike.

📌 Historical Risk Metrics for a Safe Haven

Longer-term risk figures support this short-term pattern.

Gold and Silver as a safe haven? Volatility is back.
Gold, Silver, U.S. Stocks, and Aggregate Bond ETF performance over the last 12 months, as of January 30, 2026. Source: https://www.etfreplay.com/charts
  • Silver ETF SLV has historically shown higher volatility compared with gold ETFs, meaning silver prices tend to swing harder and more often than gold when markets shift sentiment or macro drivers change.
  • Gold ETF GLD’s lower volatility has often made it a preferred choice for risk-averse investors seeking stability.

🧠 What This Means for Investors

The late-January sell-offs and reversals — where precious metals retreated significantly after touching record highs — illustrate that safe-haven status doesn’t equate to smooth performance in every market environment. Sharp reversals driven by shifts in monetary policy expectations or risk appetite can quickly compress profits and widen losses, particularly for more volatile assets like silver.

In short, gold and silver may still play roles as portfolio diversifiers or long-term hedges — but recent prices in GLD and SLV remind us that volatility is very real, and risk metrics matter when evaluating these in a diversified portfolio.

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
Posted on

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.

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
Posted on

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.
Photo by Markus Winkler on Pexels.com

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.

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
Posted on

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.

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
Posted on

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.

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
Posted on

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
Posted on

Required Minimum Distributions in 2024

Happy New Year! In this post, we discuss some of the salient features of required minimum distributions (RMDs) for those in or nearing their retirement. We also provide a proactive tax-efficient strategy to help reduce the impact of RMDs.

required minimum distributions
Photo by Nataliya Vaitkevich on Pexels.com

What is an RMD and how does it apply to me?

As their name implies, required minimum distributions (RMDs) are amounts that need to be withdrawn, or “distributed”, from a retirement account. The retirement accounts that impose RMDs typically include those with pre-tax contributions and gains, such as 401(k), IRAs, and 403(b) plans.

Required Minimum Distributions (RMDs) are minimum amounts that IRA and retirement plan account owners generally must withdraw annually starting with the year they reach age 72 (73 if you reach age 72 after Dec. 31, 2022).

U.S. Internal Revenue Service FAQs

The amount of the RMD depends on the account holder’s age, assuming they did not inherit the retirement account. As the retiree ages, the proportion of RMD distributions, relative to their total account value, increases. For example, a retiree expected to live another 20 years based on the IRS life expectancy tables must withdraw 1/20th (or 5%) of their account value to satisfy RMDs. 

Note:  This post has been prepared for informational purposes only, and is not intended to provide, and should not be relied on for, tax, legal or accounting advice. You should consult your own tax, legal and accounting advisors before engaging in any transaction.

Implications and Strategies for Tax Efficiency of Required Minimum Distributions

As this recent WSJ article articulated, there are several implications to RMDs on a retiree’s tax liabilities. First, after a strong year of market returns, RMDs will be even higher due to larger retirement account balances. These higher account values and subsequent RMDs could also push the retiree into a higher tax bracket. Lastly, RMDs could also trigger Net Investment Income Tax (NIIT) as well as higher Income-Related Monthly Adjustment Amounts (IIRMA).

A simple strategy to increase tax efficiency in retirement income is to plan for the future, and not always defer distributions from tax-deferred accounts, like IRA and 401(k) plans. We demonstrated in our award-winning peer-reviewed published manuscript how such a tax-efficient approach can produce 0.3% to 0.6% of additional return for a variety of retirees. Is similar planning beneficial to your situation? To find out, we encourage you to try out our retirement income planning tool recently updated for 2024 tax brackets.

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
Posted on

Tax Loss Harvesting

As 2023 heads to a close, many investors are considering whether to sell investments at a loss, often referred to as tax loss harvesting. In this post, we explain this tax opportunity and the financial benefit possible from it. We also describe a pitfall that investors should avoid to achieve the benefit of tax loss harvesting.

notebook and calculator on green surface
Photo by Nataliya Vaitkevich on Pexels.com

Short-term or long-term?

Why is tax loss harvesting important? To begin, ETF investors must understand the difference between short-term and long-term gains or losses. An investor realizes a short-term loss when they sell an ETF held for less than one year. In general, taxes on losses on short-term investments in securities like ETFs occur at a higher rate than those gains realized from short-term investments. For taxpayers at the highest rates, the short-term rate is 37%, and the long-term rate is 20%.

So, if an investment is below its purchase price within one year of holding it, an investor can sell it and realize a short-term loss. This short-term loss can be deducted from any short-term gains, like those from bond or money market investments. Consequently, an investor’s income tax may be reduced.

Pitfalls

The most obvious pitfall is the wash sale rule. Investors may not obtain a tax benefit if they sell an ETF for a loss within 30 days, and then rebuy it. Consequently, such a violation eliminates the opportunity for tax-loss harvesting. Investors wishing to stay invested in the markets can opt to buy a different ETF that is not “substantially identical” and not wait 30 days.

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