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May 18, 2025 • 13 min read

How to Add Thematic ETFs to Your Portfolio

Josh Pigford

Josh Pigford

Thematic ETFs focus on specific trends like AI, renewable energy, or cybersecurity, offering a unique way to invest in high-growth areas. These funds differ from traditional ETFs by targeting emerging themes rather than broad-market indices. Here's a quick breakdown:

  • Types: Technology (AI, cybersecurity), Sustainability (renewable energy), Healthcare (biotech), and Emerging Trends (e-commerce, blockchain).
  • Benefits: Targeted exposure to growth sectors, diversification, long-term focus, and accessibility for retail investors.
  • Risks: Higher concentration and volatility compared to traditional ETFs.

To incorporate thematic ETFs into your portfolio:

  1. Set Goals: Define risk tolerance and long-term objectives.
  2. Analyze Portfolio: Identify gaps where thematic ETFs can add value.
  3. Select ETFs: Evaluate expense ratios, fund size, and holdings.
  4. Allocate Wisely: Keep thematic ETFs between 5–15% of your portfolio.
  5. Monitor Performance: Review quarterly and rebalance as needed.

Thematic ETFs are best used as complementary investments within a diversified portfolio, aligning with your financial goals and market trends.

Getting Your Portfolio Ready

To make the most of thematic ETFs and their potential for targeted growth, it’s essential to craft a solid investment strategy that seamlessly integrates them into your portfolio.

Set Investment Goals and Understand Risk

Start by defining your investment goals and assessing your risk tolerance. Thematic ETFs often focus on long-term trends, meaning it can take years for their full potential to unfold. As Michael Kachmar, director of digital product management at Schwab, puts it:

"Unlike fads that can flame out in a matter of weeks or months, thematic investing involves big ideas that could take years to play out, assuming they don't peter out altogether."

Because thematic ETFs tend to have concentrated exposure, they can be more volatile than broader market funds. Be prepared for price fluctuations and evaluate how much risk you’re comfortable taking. After that, examine your current portfolio to identify areas where thematic ETFs can strategically enhance your overall mix.

Analyze Your Current Portfolio

Take a close look at your portfolio to determine whether there are gaps where thematic ETFs could add value without duplicating existing investments. Begin with an analysis of your asset allocation across different classes. Keep your core broad-market holdings intact and view thematic ETFs as complementary tools rather than replacements.

Thematic funds have grown significantly, reaching $800 billion globally by 2021, which underscores their increasing role in investment strategies. Look for areas where emerging trends - such as green energy or advanced healthcare - could provide targeted exposure. However, be mindful of overlap. For instance, if your technology fund already includes artificial intelligence or cybersecurity, adding a thematic ETF in the same area might not make sense.

"As with any investment, your thematic holdings should align with your risk tolerance and time horizon." - Michael Kachmar, director of digital product management at Schwab

This thorough review will help you pinpoint the right thematic ETFs to fill gaps and align with your long-term investment strategy.

Selecting Thematic ETFs

Choosing the right thematic ETFs means aligning them with your investment strategy and market perspective. With 316 thematic ETFs managing a combined $132 billion across themes like infrastructure and cybersecurity, making informed decisions is essential.

Check Market Trends

Focus on trends with staying power rather than fleeting fads. For instance, themes like artificial intelligence (AI) have shown strong momentum, contributing nearly half of the S&P 500's returns in 2024.

"Investors should focus more on themes and less on broad asset classes as mega forces reshape whole economies" - Blackrock Investment Institute

Compare ETF Features

Thematic ETFs typically come with an average expense ratio of 0.61%, higher than traditional broad-market funds. It's worth comparing this and other features to ensure you're getting the best value.

Feature What to Evaluate
Expense Ratio Compare against the 0.61% average for thematic ETFs
Fund Size Larger funds often provide better liquidity
Trading Volume Higher volume allows easier entry and exit
Track Record Look at performance across different market conditions
Management Team Assess their experience and strategy execution

After evaluating these features, confirm that the ETF’s holdings align with its stated theme.

Study Fund Holdings

Dig into the ETF's holdings to ensure it genuinely reflects the theme you're targeting. For example, global cybersecurity spending is expected to hit $215 billion in 2024, a 14.3% increase from 2023. Similarly, in the AI sector, some ETFs focus on infrastructure providers, as the combined datacenter GPU and AI ASIC markets are projected to grow to $156 billion by 2025.

When reviewing ETF holdings, consider:

  • Concentration in top positions
  • Geographic distribution
  • Market cap distribution
  • Overlap with sectors already in your portfolio
  • Whether the fund offers pure-play or partial exposure to the theme

The goal is to ensure the ETF reflects its theme while complementing your portfolio without adding unnecessary risks, such as overlap or over-concentration.

Adding Thematic ETFs to Your Portfolio

Set Portfolio Percentages

When adding thematic ETFs to your portfolio, balance is everything. By the end of 2024, thematic ETFs are expected to manage $80.2 billion in assets, highlighting the importance of strategic allocation. Many experts suggest keeping thematic ETFs between 5% and 15% of your portfolio, depending on how much risk you're willing to take and your investment timeline.

Here’s a quick guide to help you decide:

Investment Profile Suggested Thematic ETF Allocation Risk Consideration
Conservative 5–8% Lower tolerance for volatility
Moderate 8–12% Balanced approach to risk
Aggressive 12–15% Comfortable with higher risk

Build Core and Satellite Holdings

Using a core-satellite approach can help you strike a balance between stability and opportunity. Your core holdings - like broad-market ETFs - provide a stable foundation, while thematic ETFs act as satellite positions, giving you exposure to specific trends.

For instance, if your portfolio follows a traditional 60/40 split between stocks and bonds, you might adjust it to include 50% broad-market equity ETFs, 40% bonds, and 10% thematic ETFs targeting emerging trends. This way, you maintain overall stability while also positioning yourself for growth. A historical example? Between 2007 and 2019, stocks tied to the smartphone industry delivered a 269% return, outperforming the MSCI ACWI’s 192% return over the same period.

Plan Purchase Timing

Timing matters when investing in thematic ETFs. In January 2025 alone, these funds saw $2 billion in inflows, showcasing their growing popularity. Instead of trying to predict market highs and lows, consider a systematic approach to your purchases:

Investment Strategy Benefits Best For
Dollar-Cost Averaging Helps smooth out market volatility Long-term investors
Tiered Approach Gradually increases exposure as confidence builds Risk-conscious investors
Strategic Rebalancing Ensures your portfolio stays aligned with goals Active portfolio managers

While it’s important to keep an eye on market conditions, avoid chasing short-term gains. A disciplined approach, like regularly rebalancing your portfolio to maintain your target allocations, can help you manage risk while staying invested in your chosen themes. Up next, we’ll explore how to monitor and fine-tune these investments for ongoing success.

Managing Your ETF Investments

Monitor and Adjust Holdings

Keeping an eye on your thematic ETFs is crucial. Thematic ETF assets have skyrocketed from $9.7 billion in 2014 to $92.7 billion in 2024, making it essential to review their performance quarterly to ensure they still align with your investment goals.

When assessing thematic ETFs, pay attention to these key metrics:

Performance Metric What to Check Why It Matters
Relative Performance Compare ETF returns vs. benchmark Highlights underperforming funds
Tracking Error Difference between ETF and index returns Indicates how closely passive ETFs follow their index
Risk-Adjusted Returns Beta and return ratios Measures if the returns are worth the risk
Expense Ratios Annual fund costs Affects long-term returns

Once you've evaluated performance, take a closer look at tax considerations to fine-tune your portfolio.

Understand Tax Effects

ETFs often come with tax benefits that can make a big difference. For example, in 2023, only 2.5% of ETFs distributed capital gains, compared to 31.5% of mutual funds. This is largely due to the ETF's unique "in-kind" creation and redemption process.

"ETFs typically generate fewer capital gains than mutual funds given how they're structured and traded. Fewer capital gains to tax means investors potentially get to keep more of their returns." - Invesco US

Here are some tax-savvy strategies to keep in mind:

  • Hold ETFs in Tax-Advantaged Accounts

    If your thematic ETFs involve frequent trading or high distributions, consider using tax-advantaged accounts like IRAs or 401(k)s to defer taxes.

  • Strategic Rebalancing

    Time your portfolio adjustments to minimize tax liabilities. For instance, during market dips, you could use tax-loss harvesting to offset gains while maintaining your desired exposure.

  • Monitor Distribution Types

    Different types of distributions are taxed differently:

    • Qualified dividends are taxed at a lower rate.
    • Interest income is taxed as ordinary income.
    • Return of capital adjusts your cost basis.

Use Maybe Finance for Tracking

Maybe Finance

Once you've got your performance reviews and tax strategies in place, consider using tools like Maybe Finance to keep everything organized. This platform simplifies tracking thematic ETFs by offering features like:

  • Real-time performance monitoring and expense ratio analysis.
  • Custom alerts for rebalancing opportunities.
  • Insights into thematic allocation percentages.

For global investors, the multi-currency support is a standout feature, helping you track performance across various markets and currencies. Setting up monthly reviews on the platform can help ensure your investments remain aligned with your financial goals.

Conclusion: Steps for Success

The growing popularity of thematic ETFs highlights their role in shaping modern investment strategies. To make the most of these opportunities, you need to approach them with thorough research, careful planning, and consistent oversight.

Focus on distinguishing true long-term potential from fleeting market trends. For example, cybersecurity-themed ETFs are bolstered by predictions that cybercrime could cost up to $12 trillion by 2025. On the other hand, some trendy themes may lack solid growth foundations, making it essential to evaluate each option critically.

Here’s a simple framework to guide your strategy:

Investment Phase Key Actions Success Metrics
Research Study market trends and assess the theme's potential Pinpoint sustainable growth opportunities
Planning Define allocation limits and evaluate fit within your portfolio Set clear percentage targets for investments
Implementation Compare ETF features and analyze fund holdings Choose funds that meet your specific criteria
Management Track performance and make adjustments as needed Regularly review and rebalance your portfolio

FAQs

What makes thematic ETFs riskier or more volatile compared to traditional ETFs?

Thematic ETFs are tailored to target specific trends, industries, or ideas - think renewable energy or artificial intelligence. Because they focus so heavily on one area, their performance is closely tied to how that particular theme plays out. If the theme struggles, the ETF's value can take a noticeable hit, making them more unpredictable.

On the other hand, traditional ETFs aim for broader market exposure, spreading investments across multiple sectors and industries. This diversification helps cushion against market swings, reducing overall risk. While thematic ETFs might offer the allure of higher growth, they come with increased risks, making them a better fit for investors comfortable with volatility or those looking to add a focused element to an already diversified portfolio.

How can I avoid overlap when adding thematic ETFs to my portfolio?

When adding thematic ETFs to your portfolio, it’s important to avoid unnecessary overlap. Start by examining your current investments. Take a close look at the holdings within the ETFs you’re considering and compare them to your existing portfolio. This will help you spot any potential duplication in sectors, themes, or companies.

Another smart approach is to use a core-and-satellite strategy. With this method, you build a core portfolio using broadly diversified ETFs and then enhance it by adding thematic ETFs as smaller, supplementary investments. This way, you can focus on specific trends while keeping your portfolio well-balanced and avoiding too much exposure to any single area.

How can I track and adjust my thematic ETF investments to meet my financial goals?

To ensure your thematic ETF investments align with your financial goals, it’s important to keep an eye on their performance and how well they fit into your overall strategy. Take the time to evaluate whether the themes still support your long-term objectives, if they’re delivering the returns you anticipated, and how they influence your portfolio’s risk level and diversification.

Another key step is periodic rebalancing. This involves tweaking your portfolio to maintain your preferred asset allocation as market conditions shift or your personal goals evolve. For instance, if a theme isn’t performing as expected or a promising new opportunity emerges, reallocating funds can position your portfolio for better growth potential. By regularly monitoring and making thoughtful adjustments, you can keep your investments aligned with your financial plan.