Are ETFs A Better Benchmark?

Jocelyn Gilligan, CFA, CIPM
Partner
June 28, 2024
15 min
Are ETFs A Better Benchmark?

Using Exchange-Traded Funds (ETFs) as benchmarks instead of traditional indices has become a common practice among investors and fund managers. ETFs offer practical advantages, such as reflecting real-world trading costs, and incorporating management fees and tax considerations. These aspects make ETFs a more accurate and accessible benchmark as they are an actual investible alternative to the strategy being assessed.

However, this approach is not without its drawbacks. Understanding both the advantages and disadvantages of using ETFs as benchmarks is crucial for making informed investment decisions and ensuring accurate performance comparisons.

This article discusses the pros and cons of using an ETF as a benchmark and considerations for making an informed decision on how to go about selecting one that is meaningful.

The Advantages:

Using an ETF as a benchmark rather than the underlying index has several advantages. These include:

Cost:

The decision to use an ETF rather than an actual index as a benchmark often stems from the costs associated with using index performance data. While index providers typically charge licensing fees for access to their indices, these fees can be cost-prohibitive for some firms, especially smaller ones, or those with limited resources.

ETFs offer a more accessible and cost-effective alternative, as they provide readily available, real-time performance data and can be traded easily on stock exchanges and accessed by anyone. By using an ETF as a benchmark, firms can circumvent the barriers to entry associated with marketing index performance directly, allowing them to still compare performance against a relevant benchmark.

Practical Investment Comparison:

ETFs represent actual investment vehicles that investors can buy and sell, thus providing a more practical and realistic performance comparison. Indices, on the other hand, are theoretical constructs that do not account for real-world trading costs, whereas ETFs do. Additionally, ETFs are traded on stock exchanges and can be bought and sold throughout the trading day at market prices, unlike indices which cannot be directly traded.

Incorporation of Costs:

ETFs include trading and management expenses and other costs associated with managing the pool of securities. When using an ETF as a benchmark, you get a more accurate reflection of the net returns an investor would actually receive after these costs. In addition, ETF performance considers the costs of buying and selling the underlying assets, including bid-ask spreads and any market impact, which indices do not.

Dividend Reinvestment:

ETFs may account for the reinvestment of dividends, providing a more accurate measure of total return. Indices often do not factor in the practical aspects of dividend reinvestment, such as timing delays, transaction costs, and tax implications, leading to a potentially less realistic depiction of investment returns.

Tax Considerations:

ETFs may have different tax treatments and efficiencies compared to the theoretical index performance. Using an ETF as a benchmark will reflect these considerations, providing a potentially more relevant comparison for taxable investors.

Replication and Tracking Error:

ETFs can exhibit tracking error, which is the deviation of the ETF's performance from the index it seeks to replicate. While tracking error may be perceived as a limitation, it also reflects the real-world challenges and frictions involved in managing an investment portfolio. Thus, using an ETF as a benchmark encompasses this aspect of real-world performance—which acknowledges the practical complexities of investing and serves to enhance transparency and accountability in investment decision making.

Transparency and Real-time Data:

ETFs provide real-time pricing information throughout trading hours, allowing investors to monitor and compare performance continuously as market conditions fluctuate. This real-time data enables more informed and timely decision-making, as investors can react instantly to market events, manage risks more effectively, and capitalize on opportunities as they arise.

Advantages Summary

In summary, using an ETF as a benchmark provides a less-costly, more realistic, practical, and accurate measure of investment performance that includes real-world considerations like costs, liquidity, tax implications, and dividend reinvestment, which are not fully captured by indices. ETFs are a true investable alternative, while indexes are not directly investible.

The Disadvantages:

While using an ETF as a benchmark has several advantages, there are also some potential drawbacks to consider:

Downside of Tracking Error:

ETFs may not perfectly track their underlying indices due to various factors such as imperfect replication methods, sampling techniques, and management decisions. This tracking error can result from differences in timing, costs, and portfolio composition between the ETF and its benchmark index.

This deviation can lead to discrepancies when comparing the ETF's performance to the actual index and can affect investors' expectations, portfolio management decisions, and performance evaluations. Thus, it is prudent to evaluate and monitor tracking error of ETFs when they are used as a benchmark.

Tracking Method: Full Replication vs. Sampling

ETFs employ different replication strategies to track their underlying indices, with some opting for full replication, while others utilize sampling techniques. These differences can lead to varying levels of tracking error and performance differences from the underlying index.

Full replication involves holding all of the securities in the index in the same proportions as they are weighted in the index, aiming to closely mirror its performance. In contrast, sampling techniques involve holding a representative subset of securities that capture the overall characteristics of the index.

While full replication theoretically offers the closest tracking to the index, it can be more costly and logistically challenging, especially for indices with a large number of securities. Sampling, while potentially more cost-effective and manageable, introduces the risk of tracking error, as the subset of securities may not perfectly reflect the index's performance.

Non-Comparable Expense Ratios:

ETFs incur management fees, which reduce returns over time. While these fees are part of the real-world costs, they can make the ETF's performance look worse compared to the theoretical performance of the index, especially when compounded over time. This may be problematic when using an ETF as a comparison tool (think expense ratios dragging down ETF benchmark performance thus making the strategy appear to have performed better than it would have against the actual index). This has the potential to influence investment decisions and performance evaluations. To address this concern, the GIPS Standards now require firms that use an ETF as a benchmark to disclose the ETF’s expense ratio.

Many active managers might argue that it’s “unfair” that the SEC requires them to compare net returns against an index that has no fees or expenses. However, if the strategy’s goal is to beat the index with active management, the manager should be doing this even after fees, otherwise passive investing (with lower fees) is a better option.

Liquidity Constraints:

Some ETFs may suffer from lower liquidity, leading to wider bid-ask spreads and higher trading costs, especially for large transactions. This can affect the ETF's performance and make it less ideal as a benchmark.

Selection Dilemma

Multiple ETFs may track the same index, each with different structures, expense ratios, and tracking accuracy (e.g., check out the differences between SPY, IVV, VOO, SPLG). As a result, choosing the most appropriate ETF as a benchmark should involve consideration of factors such as cost-effectiveness, liquidity, tracking error, and the strategy’s specific investment objectives. As a result, some due diligence should be done to ensure that the selected ETF aligns closely with the desired index and makes sense for the investment strategy.

Some firms have made it a habit to mix the use of different ETFs in factsheets, often because their data sources lack all the data needed for one ETF. While it may seem like it’s all the same, for many of the reasons discussed in this post, not all ETFs are created equal. We do not recommend mixing benchmarks, even when using actual indices (e.g., comparing performance returns to the Russell 1000 Growth, but then showing other statistics like sectors compared to the S&P 500). Similarly, we wouldn’t recommend doing that with ETFs either (e.g., comparing performance returns to IVV but using sector information from SPY). Mixing benchmark information in factsheets is messy and likely to be questioned by regulators, especially when doing so makes strategy performance look better.

Regulatory and Structural Issues:

ETFs are subject to evolving regulatory oversight that might affect their operations, costs and performance as benchmarks. This is not the case for indices.

In addition, the structural differences between ETFs, particularly regarding whether they are physically backed or use synthetic replication through derivatives, can significantly impact their risk profile and performance relative to their underlying indices.

Physically backed ETFs typically hold the actual securities that comprise the index they track, aiming to replicate its performance as closely as possible. In contrast, synthetic ETFs use derivatives, such as swaps, to replicate the index's returns without owning the underlying assets directly. While synthetic replication can offer cost and operational advantages, it also introduces counterparty risk, as the ETF relies on the financial stability of the swap provider.

As a result, it’s best to consider the structure of the ETF before using it as a benchmark.

Market Influences:

ETFs can trade at prices above (premium) or below (discount) their net asset value (NAV), which can introduce short-term performance differences that are not reflective of the underlying index performance.

These premiums and discounts arise due to supply and demand dynamics in the market, as well as factors such as investor sentiment, liquidity, and trading volume. These fluctuations can affect the ETF's reported returns and introduce discrepancies when comparing its performance to the benchmark index. Therefore, investors must consider the impact of these premiums and discounts on the ETF's short-term performance and recognize that these variances may not accurately represent the true performance of the underlying index.

When material differences in price vs. NAV exist, some firms believe that the NAV is a better representation of the fair value rather than the price and have used NAV for performance calculations. Please note that when this is done, it is important to document how fair value is determined and if the performance is based on the change in NAV or change in trading price.

Currency Risk:

Investors utilizing ETFs tracking international indices face the added complexity of currency fluctuations, which can significantly influence the ETF's performance. When investing in foreign ETFs, investors are exposed to currency risk, as fluctuations in exchange rates between the ETF's base currency and the currencies of the underlying index's constituents can impact returns. Currency movements can either enhance or detract from the ETF's performance, depending on whether the base currency strengthens or weakens relative to the underlying currencies.

Consequently, currency risk should be considered when using international ETFs as benchmarks.

Dividend Handling:

The handling of dividends by ETFs, whether they are paid out to investors or reinvested back into the fund, can have a notable impact on their total return compared to the index they track. Indices typically assume continuous reinvestment of dividends without considering real-world frictions such as transaction costs or timing delays associated with reinvestment. In contrast, ETFs may adopt different dividend distribution policies based on investor preferences and fund objectives.

ETFs that reinvest dividends back into the fund can potentially enhance their total return over time by capitalizing on the power of compounding. However, this approach may result in tracking errors if the reinvestment process incurs costs or timing discrepancies that deviate from the index's assumed reinvestment.

ETFs that distribute dividends to investors as cash payments may offer more immediate income but could lag behind the index's total return if investors do not reinvest these dividends efficiently. Therefore, the dividend handling policy adopted by an ETF can significantly influence its performance relative to the index and should be carefully considered.

Lack of Historical Data:

Some ETFs, especially newer ones, may not have a long track record. This can make historical performance comparisons less reliable or comprehensive. Without an extensive performance history, sufficient data may be lacking to assess an ETF's performance across various market conditions and economic cycles, making it challenging to gauge its potential risks and returns accurately.

Strategies that existed long before an ETF was created to track the comparable index, may end up with timing differences. Many firms often need to use multiple benchmarks to cover the entire period. But, for some strategies that go way back, an ETF may not exist back to inception. Be sure to include rationale in your documentation for benchmark selection so that it is clear when and why a benchmark was selected for the given time periods.

Conclusion:

In conclusion, using ETFs as benchmarks offers practical benefits, potentially making them a more accurate and accessible measure of investment performance compared to traditional indices since they are an actual investable alternative to hiring an active manager. However, these benefits do not come without shortcomings. By carefully evaluating these factors and considering the specifics of the ETFs selected for each strategy, managers can effectively use ETFs as benchmarks to assess and monitor investment strategies. In understanding these factors, an ETF may actually be a better comparison tool for your strategy than the underlying index.

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Key Takeaways from the 29th Annual GIPS® Standards Conference in Phoenix

The 29th Annual Global Investment Performance Standards (GIPS®) Conference was held November 11–12, 2025, at the Sheraton Grand at Wild Horse Pass in Phoenix, Arizona—a beautiful desert resort and an ideal setting for two days of discussions on performance reporting, regulatory expectations, and practical implementation challenges. With no updates released to the GIPS standards this year, much of the content focused on application, interpretation, and the broader reporting and regulatory environment that surrounds the standards.

One of the few topics directly tied to GIPS compliance with a near-term impact relates to OCIO portfolios. Beginning with performance presentations that include periods through December 31, 2025, GIPS compliant firms with OCIO composites must present performance following a newly prescribed, standardized format. We published a high-level overview of these requirements previously.

The conference also covered related topics such as the SEC Marketing Rule, private fund reporting expectations, SEC exam trends, ethical challenges, and methodology consistency. Below are the themes and observations most relevant for firms today.

Are Changes Coming to the GIPS Standards in 2030?

Speakers emphasized that while no new GIPS standards updates were introduced this year, expectations for consistent, well-documented implementation continue to rise. Many attendee questions highlighted that challenges often stem more from inconsistent application or interpretation than from unclear requirements.

Several audience members also asked whether a “GIPS 2030” rewrite might be coming, similar to the major updates in 2010 and 2020. The CFA Institute and GIPS Technical Committee noted that:

    ·   No new version of the standards is currently in development,

     ·   A long-term review cycle is expected in the coming years, and

     ·   A future update is possible later this decade as the committee evaluates whether changes are warranted.

For now, the standards remain stable—giving firms a window to refine methodologies, tighten policies, and align practices across teams.

Performance Methodology Under the SEC Marketing Rule

The Marketing Rule featured prominently again this year, and presenters emphasized a familiar theme: firms must apply performance methodologies consistently when private fund results appear in advertising materials.

Importantly, these expectations do not come from prescriptive formulas within the rule. They stem from:

1.     The “fair and balanced” requirement,

2.     The Adopting Release, and

3.     SEC exam findings that view inconsistent methodology as potentially misleading.

Common issues raised included: presenting investment-level gross IRR alongside fund-level net IRR without explanation, treating subscription line financing differently in gross vs. net IRR, and inconsistently switching methodology across decks, funds, or periods.

To help firms void these pitfalls, speakers highlighted several expectations:

     ·   Clearly identify whether IRR is calculated at the investment level or fund level.

     ·   Use the same level of calculation for both gross and net IRR unless a clear, disclosed rationale exists.

     ·   Apply subscription line impacts consistently across both gross and net.

     ·   Label fund-level gross IRR clearly, if used(including gross returns is optional).

     ·   Ensure net IRR reflects all fees, expenses, and carried interest.

     ·   Disclose any intentional methodological differences clearly and prominently.

     ·   Document methodology choices in policies and apply them consistently across funds.

This remains one of the most frequently cited issues in SEC exam findings for private fund advisers. In short: the SEC does not mandate a specific methodology, but it does expect consistent, well-supported approaches that avoid misleading impressions.

Evolving Expectations in Private Fund Client Reporting

Although no new regulatory requirements were announced, presenters made it clear that limited partners expect more transparency than ever before. The session included an overview of the updated ILPA reporting template along with additional information related to its implementation. Themes included:

     ·   Clearer disclosure of fees and expenses,

     ·   Standardized IRR and MOIC reporting,

     ·   More detail around subscription line usage,

     ·   Attribution and dispersion that are easy to interpret, and

     ·   Alignment with ILPA reporting practices.

These are not formal requirements, but it’s clear the industry is moving toward more standardized and transparent reporting.

Practical Insights from SEC Exams—Including How Firms Should Approach Deficiency Letters

A recurring theme across the SEC exam sessions was the need for stronger alignment between what firms say in their policies and what they do in practice. Trends included:

     ·   More detailed reviews of fee and expense calculations, especially for private funds,

     ·   Larger sample requests for Marketing Rule materials,

     ·   Increased emphasis on substantiation of all claims, and

     ·   Close comparison of written procedures to actual workflows.

A particularly helpful part of the discussion focused on how firms should approach responding to SEC deficiency letters—something many advisers encounter at some point.

Christopher Mulligan, Partner at Weil, Gotshal & Manges LLP, offered a framework that resonated with many attendees. He explained that while the deficiency letter is addressed to the firm by the exam staff, the exam staff is not the primary audience when drafting the response.

The correct priority order is:

1. The SEC Enforcement Division

Enforcement should be able to read your response and quickly understand that: you fully grasp the issue, you have corrected or are correcting it, and nothing in the finding merits escalation.

Your first objective is to eliminate any concern that the issue rises to an enforcement matter.

2. Prospective Clients

Many allocators now request historical deficiency letters and responses during due diligence. The way the response is written—its tone, clarity, and thoroughness—can meaningfully influence how a firm is perceived.

A well-written response shows strong controls and a culture that takes compliance seriously.

3. The SEC Exam Staff

Although examiners issued the letter, they are the third audience. Their primary interest is acknowledgment and a clear explanation of the remediation steps.

Mulligan emphasized that firms often default to writing the response as if exam staff were the only audience. Reframing the response to keep the first two audiences in mind—enforcement and prospective clients—helps ensure the tone, clarity, and level of detail are appropriate and reduces both regulatory and reputational risk.

Final Thoughts

With no changes to the GIPS standards introduced this year, the 2025 conference in Phoenix served as a reminder that the real challenges involve consistency, documentation, and communication. OCIO providers in particular should be preparing for the upcoming effective date, and private fund managers continue to face rising expectations around transparent, well-supported performance reporting.

Across all sessions, a common theme emerged: clear methodology and strong internal processes are becoming just as important as the performance results themselves.

This is exactly where Longs Peak focuses its work. Our team specializes in helping firms document and implement practical, well-controlled investment performance frameworks—from IRR methodologies and composite construction to Marketing Rule compliance, fee and expense controls, and preparing for GIPS standards verification. We take the technical complexity and turn it into clear, operational processes that withstand both client due diligence and regulatory scrutiny.

If you’d like to discuss how we can help strengthen your performance reporting or compliance program, we’d be happy to talk. Contact us.

From Compliance to Growth: How the GIPS® Standards Help Investment Firms Unlock New Opportunities

For many investment managers, the first barrier to growth isn’t performance—it’s proof.
When platforms, consultants, and institutional investors evaluate new strategies, they’re not just asking how well you perform; they’re asking how you measure and present those results.

That’s where the GIPS® standards come in.

More and more investment platforms and allocators now require firms to comply with the GIPS standards before they’ll even review a strategy. For firms seeking to expand their reach—whether through model delivery, SMAs, or institutional channels—GIPS compliance has become a passport to opportunity.

The Opportunity Behind Compliance

Becoming compliant with the GIPS standards is about more than checking a box. It’s about building credibility and transparency in a way that resonates with today’s due diligence standards.

When a firm claims compliance with the GIPS standards, it demonstrates that its performance is calculated and presented according to globally recognized ethical principles—ensuring full disclosure and fair representation. This helps level the playing field for managers of all sizes, giving them a chance to compete where it matters most: on results and consistency.

In short, GIPS compliance doesn’t just make your reporting more accurate—it makes your firm more credible and discoverable.

Turning Complexity Into Clarity

While the benefits are clear, the process can feel overwhelming. Between defining the firm, creating composites, documenting policies and procedures, and maintaining data accuracy—many teams struggle to find the time or expertise to get it right.

That’s where Longs Peak comes in.

We specialize in simplifying the process. Our team helps firms navigate every step—from initial readiness and composite construction to quarterly maintenance and ongoing training—so that compliance becomes a seamless part of operations rather than a burden on them.

As one of our clients put it, “Longs Peak helps us navigate GIPS compliance with ease. They spare us from the time and effort needed to interpret what the requirements mean and let us focus on implementation.”

Real Firms, Real Impact

We’ve seen firsthand how GIPS compliance can transform firms’ growth trajectories.

Take Genter Capital Management, for example. As David Klatt, CFA and his team prepared to expand into model delivery platforms, managing composites in accordance with the GIPS standards became increasingly complex. With Longs Peak’s customized composite maintenance system in place, Genter gained the confidence and operational efficiency they needed to access new platforms and relationships—many of which require firms to be GIPS compliant as a baseline.

Or consider Integris Wealth Management. After years of wanting to formalize their composite reporting, they finally made it happen with our support. As Jenna Reynolds from Integris shared:

“When I joined Integris over seven years ago, we knew we wanted to build out our composite reporting, but the complexity of the process felt overwhelming. Since partnering with Longs Peak in 2022, they’ve been instrumental in driving the project to completion. Our ongoing collaboration continues to be both productive and enjoyable.”

These are just two examples of what happens when compliance meets clarity—firms gain time back, confidence grows, and new business doors open.

Why It Matters—Compliance as a Strategic Advantage

At Longs Peak, we believe compliance with the GIPS standards isn’t a cost—it’s an investment.

By aligning your firm’s performance reporting with the GIPS standards, you gain:

  • Access to platforms and institutions that require GIPS compliant firms.
  • Credibility and trust in an increasingly competitive landscape.
  • Operational efficiency through consistent data and documented processes.
  • Scalability to support multiple strategies and distribution channels.

Simply put: compliance fuels confidence—and confidence drives growth.

Simplifying the Complex

At Longs Peak, we’ve helped over 250 firms and asset owners transform how they calculate, present, and communicate their investment performance. Our goal is simple: make compliance with the GIPS standards practical, transparent, and aligned with your firm’s growth goals.

Because when compliance works efficiently, it doesn’t slow your business down—it helps it reach further.

Ready to turn compliance into a growth advantage?

Let’s talk about how we can help your firm simplify the complex.

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Performance reporting has two common pitfalls: it’s backward-looking, and it often stops at raw returns. A quarterly report might show whether a portfolio beat its benchmark, but it doesn’t always show why or whether the results are sustainable. By layering in risk-adjusted performance measures—and using them in a structured feedback loop—firms can move beyond reporting history to actively improving the future.

Why a Feedback Loop Matters

Clients, boards, and oversight committees want more than historical returns. They want to know whether:

·        performance was delivered consistently,

·        risk was managed responsibly, and

·        the process driving results is repeatable.

A feedback loop helps firms:

·        define expectations up front instead of rationalizing results after the fact,

·        monitor performance relative to objective appraisal measures,

·        diagnose whether results are consistent with the manager’s stated mandate, and

·        adjust course in real time so tomorrow’s outcomes improve.

With the right discipline, performance reporting shifts from a record of the past toa tool for shaping the future.

Step 1: Define the Measures in Advance

A useful feedback loop begins with clear definitions of success. Just as businesses set key performance indicators (KPIs) before evaluating outcomes, portfolio managers should define their performance and risk statistics in advance, along with expectations for how those measures should look if the strategy is working as intended.

One way to make this tangible is by creating a Performance Scorecard. The scorecard sets out pre-determined goals with specific targets for the chosen measures. At the end of the performance period, the manager completes the scorecard by comparing actual outcomes against those targets. This creates a clear, documented record of where the strategy succeeded and where it fell short.

Some of the most effective appraisal measures to include on a scorecard are:

·        Jensen’s Alpha: Did the manager generate returns beyond what would be expected for the level of market risk (beta) taken?

·        Sharpe Ratio: Were returns earned efficiently relative to volatility?

·        Max Drawdown: If the strategy claims downside protection, did the worst loss align with that promise?

·        Up- and Down-Market Capture Ratios: Did the strategy deliver the participation levels in up and down markets that were expected?

By setting these expectations up front in a scorecard, firms create a benchmark for accountability. After the performance period, results can be compared to those preset goals, and any shortfalls can be dissected to understand why they occurred.

Step 2: Create Accountability Through Reflection

This structured comparison between expected vs. actual results is the heart of the feedback loop.

If the Sharpe Ratio is lower than expected, was excess risk taken unintentionally? If the Downside Capture Ratio is higher than promised, did the strategy really offer the protection it claimed?

The key is not just to measure, but to reflect. Managers should ask:

·        Were deviations intentional or unintentional?

·        Were they the result of security selection, risk underestimation, or process drift?

·        Do changes need to be made to avoid repeating the same shortfall next period?

The scorecard provides a simple framework for this reflection, turning appraisal statistics into active learning tools rather than static reporting figures.

Step 3: Monitor, Diagnose, Adjust

With preset measures in place, the loop becomes an ongoing process:

1.     Review results against the expectations that were defined in advance.

2.     Flag deviations using alpha, Sharpe, drawdown, and capture ratios.

3.     Discuss root causes—intentional, structural, or concerning.

4.     Refine the investment process to avoid repeating the same shortcomings.

This approach ensures that managers don’t just record results—they use them to refine their craft. The scorecard becomes the record of this process, creating continuity over multiple periods.

Step 4: Apply the Feedback Loop Broadly

When applied consistently, appraisal measures—and the scorecards built around them—support more than internal evaluation. They can be used for:

·        Manager oversight: Boards and trustees see whether results matched stated goals.

·        Incentive design: Bonus structures tied to pre-defined risk-adjusted outcomes.

·        Governance and compliance: Demonstrating accountability with clear, documented processes.

How Longs Peak Can Help

At Longs Peak, we help firms move beyond static reporting by building feedback loops rooted in performance appraisal. We:

·        Define meaningful performance and risk measures tailored to each strategy.

·        Help managers set pre-determined expectations for those measures and build them into a scorecard.

·        Calculate and interpret statistics such as alpha, Sharpe, drawdowns, and capture ratios.

·        Facilitate reflection sessions so results are compared to goals and lessons are turned into process improvements.

·        Provide governance support to ensure documentation and accountability.

The result is a sustainable process that keeps strategies aligned, disciplined, and credible.

Closing Thought

Markets will always fluctuate. But firms that treat performance as a feedback loop—nota static report—build resilience, discipline, and trust.

A well-structured scorecard ensures that performance data isn’t just about yesterday’s story. When used as feedback, it becomes a roadmap for tomorrow.

Need help creating a Performance Scorecard? Reach out if you want us to help you create more accountability today!