FSTA vs. RSPS: A Value Investor's Analysis of Cost, Concentration, and Business Fundamentals

For a disciplined investor, the foundation of any portfolio is built on cost and structure. When comparing the Fidelity MSCI Consumer Staples Index ETF (FSTA) and the Invesco S&P 500 Equal Weight Consumer Staples ETF (RSPS), the differences are stark and fundamental. FSTA's low-cost, concentrated model offers a superior platform for long-term compounding, provided the underlying businesses possess durable economic advantages.

The cost disparity is immediate and material. FSTA charges an expense ratio of 0.08%, while RSPS's fee is 0.40%. This isn't a minor difference; it represents a direct drag on net returns over decades. For every $10,000 invested, an investor pays $8 annually in fees with FSTA versus $40 with RSPS. In a low-return environment, this gap compounds into a significant portion of potential gains.

More importantly, the structure dictates the quality of the holdings. FSTA is a market-cap-weighted index fund, meaning its largest positions dominate the portfolio. Its top three holdings-Costco Wholesale, Walmart, and Procter & Gamble-account for nearly 37% of assets. This concentration is not random; it reflects the fund's design to mirror the broader consumer staples sector, which is naturally dominated by the sector's largest, most established players. These are the companies with the widest moats, the most predictable cash flows, and the proven ability to compound capital.

RSPS takes the opposite approach. By equal-weighting its 36 holdings, it provides broader exposure across the sector, diluting the influence of any single giant. The result is a fund where its top three holdings make up only about 9.5% of assets. While this offers a more balanced tilt, it also means the fund holds a larger number of smaller, potentially less dominant companies. The structural contrast is clear: FSTA is a focused bet on the sector's dominant, high-quality businesses, while RSPS spreads its weight more evenly, including a greater proportion of mid-tier names.

For the long-term investor, the choice hinges on this trade-off. FSTA's structure, with its low cost and concentration on market leaders, provides a cleaner, more efficient path to capturing the sector's growth. It's a classic value investor's preference: own a few great businesses at a fair price, rather than a larger number of good ones.

The Business Reality: Assessing the Moats of the Underlying Giants

The structural choice between FSTA and RSPS ultimately comes down to the quality of the businesses they own. The consumer staples sector is defensive, but its long-term growth depends on its largest companies maintaining pricing power and, more critically, relevance. The recent performance divergence between Walmart and Costco offers a stark lesson in how market sentiment can reward operational execution and perceived growth, even within a traditionally slow-moving sector.

In 2025, the narrative flipped. While Costco delivered solid fundamentals, growing revenue 8.3% and beating earnings estimates, its stock declined roughly 4% as the broader market climbed. By contrast, Walmart's stock surged 25.3%. Both companies posted strong operational results, but the market rendered a decisive verdict. The key differentiator was Walmart's successful execution of a strategic pivot toward high-margin, technology-driven ancillary businesses. Its digital advertising platform, Walmart Connect, generated $4.4 billion in revenue with advertising growing 53% year-over-year, and these high-margin streams now account for about one-third of the company's operating income. This structural transformation altered the earnings profile and justified a multiple expansion that Costco's more traditional model did not receive.

This shift underscores a broader industry inflection point. According to the 2025 Kantar PoweRanking, "value" has become table stakes, and the focus has decisively shifted to winning shopper relevance through precision, innovation, and technology. The American consumer now demands frictionless, personalized experiences. Walmart's investments in data analytics, automation, and omnichannel capabilities have set the standard for this new era. The ranking confirms this, with Walmart retaining the #1 retailer spot for the 29th consecutive year, driven by its pricing strategy and operational excellence. For the long-term investor, this is the essence of a durable moat: the ability to continuously reinvest in relevance to fend off disruption.

The key risk for both ETFs is that in a strong bull market, the entire consumer staples sector can be left behind. Defensive stocks often lag when growth is the theme. However, FSTA's concentrated structure is better positioned to benefit from the strong fundamentals of its top holdings. Its portfolio is tilted toward the companies leading this shift-like Walmart and Procter & Gamble, which also rose in the manufacturer rankings. RSPS, by spreading its weight more evenly, holds a larger number of mid-tier names that may not be at the forefront of this innovation wave. In a market that rewards relevance, FSTA's focus on the sector's dominant, most innovative players provides a clearer path to capturing the growth that matters.

Valuation and the Path to Compounding

The recent performance tells a clear story. Over the past year, FSTA's 8.34% total return outperformed RSPS's 7.01%. This divergence, even in a defensive sector, suggests that FSTA's concentrated holdings captured more of the sector's upside. The fund's tilt toward the largest, most dominant players-like Walmart, whose strategic pivot was discussed earlier-allowed it to benefit more directly from the strong operational execution and market recognition that these leaders achieved. For the long-term investor, this is the essence of compounding: letting a few great businesses compound capital at a faster rate than the average.

This outperformance is tempered by the funds' shared defensive nature. Both ETFs exhibit remarkably low volatility, with betas around 0.52. This confirms their role as a buffer during market downturns, a key characteristic for any portfolio seeking stability. The historical record supports this; over five years, FSTA's max drawdown was -16.57%, compared to RSPS's -18.61%. While FSTA's concentrated structure led to a slightly smaller peak-to-trough drop, it also delivered a far superior growth path for capital, with a $1,000 investment growing to $1,385 versus $1,067 for RSPS. The math of compounding is unforgiving: the lower cost and the ability to ride the wave of top-tier performance created a significant gap.

The challenge for long-term compounding, however, lies ahead. The sector's defensive nature provides stability, but its growth is now inextricably tied to the ability of its largest companies to maintain pricing power and, more critically, relevance. As the Kantar ranking showed, the moat is no longer just about scale or brand loyalty. It is about winning shopper relevance through technology and innovation. Walmart's transformation into a high-margin, data-driven platform is the archetype. The question for both ETFs is whether their underlying portfolios are positioned to ride this wave. FSTA's concentration on the sector's leaders gives it a clearer path to benefit from such structural shifts. RSPS, by spreading its weight more evenly, holds a larger number of mid-tier names that may not be at the forefront of this innovation wave. In a market that rewards relevance, the concentrated, low-cost model of FSTA offers a more efficient vehicle for capturing the compounding growth that matters.

Catalysts and What to Watch

The investment thesis for both FSTA and RSPS hinges on forward-looking dynamics that will validate or challenge their respective structures. For the long-term investor, the key is to monitor the consumer's evolving priorities and the funds' own operational health.

The paramount sector-wide catalyst is the ongoing consumer shift from "value" to "relevance." As Kantar's 2025 PoweRanking underscores, "relevance" is key to both retailer and manufacturer growth, with the consumer now demanding "frictionless, personalized experiences and breakthrough innovation". This is the central inflection point. For FSTA, whose concentrated portfolio tilts heavily toward leaders like Walmart and PepsiCo, the catalyst is clear: continued execution on this relevance agenda will justify premium valuations and drive compounding. The fund's success is directly tied to its top holdings maintaining their technological edge and shopper loyalty. For RSPS, the catalyst is more nuanced. Its equal-weighting provides a built-in tilt toward mid-tier names that may be more agile or innovative in niche areas. If the market begins to reward these companies for their agility in delivering relevance, RSPS could outperform as its broader portfolio captures a wider swath of the sector's growth.

A structural risk to watch is any significant change in the funds' expense ratios or assets under management (AUM). While both funds currently maintain their distinct cost structures, a material shift in AUM could impact liquidity and trading spreads, particularly for the smaller RSPS, which has $232 million in AUM compared to FSTA's $1.3 billion. A sharp decline in AUM for either fund could signal a loss of investor confidence in its strategy, creating a self-reinforcing cycle. The expense ratio itself is a fixed cost, but it is a critical factor in the long-term compounding equation. FSTA's 0.08% fee is a permanent advantage over RSPS's 0.40% fee, and any widening of this gap would further entrench FSTA's outperformance.

The divergent catalysts for each fund are now clear. For FSTA, the primary catalyst is the continued compounding power of its low-cost, concentrated portfolio. The fund's outperformance over the past year suggests it is capturing the growth of the sector's dominant players. The path forward depends on these giants successfully navigating the relevance shift. For RSPS, the catalyst is the potential for its equal-weighting to outperform if mid-tier staples gain favor. Its structure is designed to benefit from a broader sector rally or a rotation into smaller, more nimble companies that may be overlooked by market-cap-weighted funds. In a market that rewards relevance, FSTA's focused model offers a clearer path to capturing the growth of the leaders. Yet RSPS provides a counterweight, ensuring exposure to the entire spectrum of the defensive sector.