ITOT vs SPMO: Weighing Broad-Market Diversification Against Momentum Exposure

Key Takeaways

• ITOT offers near-total U.S. equity market coverage with roughly 2,500 holdings and an ultra-low 0.03% expense ratio, making it a broad, passive core building block.
• SPMO holds only about 100 high-momentum stocks from the S&P 500, concentrating exposure in technology and carrying materially higher single-stock and sector concentration risk.
• The two funds are not direct substitutes: ITOT is a diversified total-market strategy, while SPMO is a factor-based momentum strategy with a 0.13% expense ratio.
• SPMO has historically displayed higher volatility and a stronger technology tilt, while ITOT provides smoother, market-like diversification across large-, mid-, and small-cap stocks.
• Tickeron AI Verdict: SPMO is the favored ticker of the two for trend-following investors seeking concentrated momentum exposure, though it carries meaningfully higher risk than ITOT.

Introduction

Broad-market core exposure and factor-driven momentum represent two distinct approaches to the same underlying asset class: U.S. equities. ITOT and SPMO illustrate this divide well. ITOT, the iShares Core S&P Total U.S. Stock Market ETF, offers investors a low-cost slice of virtually the entire investable U.S. market. SPMO, the Invesco S&P 500 Momentum ETF, instead concentrates on roughly 100 stocks exhibiting the strongest recent price momentum. They do not compete directly as substitutes; rather, they serve different goals — diversified long-term growth versus tactical, trend-oriented positioning. Comparing them helps investors weigh the trade-off between breadth and diversification against focused factor exposure in today's momentum-driven market environment. I also checked sector overlaps using Tickeron’s AI Screener to confirm the differences in holdings.

A Closer Look at ITOT

ITOT is a passively managed, market-capitalization-weighted ETF that tracks the S&P Total Market Index, a benchmark spanning nearly all U.S. common equities. It holds approximately 2,500 securities, blending large-, mid-, and small-cap stocks into a single diversified portfolio. Because of cap weighting, the largest companies dominate: top holdings include NVDA, AAPL, MSFT, AMZN, GOOGL, and META. Technology is the largest sector at roughly one-third of assets, followed by financials, consumer discretionary, industrials, and healthcare. With a net expense ratio of just 0.03%, ITOT is among the cheapest broad-market funds available, and its deep trading volume supports tight bid-ask spreads and strong liquidity. It functions as a core portfolio anchor rather than a thematic or tactical tool.

A Closer Look at SPMO

SPMO tracks the S&P 500 Momentum Index, which selects and weights approximately 100 stocks from the S&P 500 with the highest volatility-adjusted momentum scores. It is a passive, rules-based factor strategy rather than an actively managed fund. The portfolio is highly concentrated: leading holdings include MU, NVDA, AVGO, AMD, GOOGL, and JNJ, with the top ten names representing more than half of assets. Technology dominates at over half of sector exposure, with industrials, healthcare, and communication services as secondary weights. The expense ratio is 0.13%, higher than broad-market peers but reasonable for a factor fund. The underlying index rebalances on a semi-annual schedule, meaning holdings rotate as momentum leadership shifts. SPMO is non-diversified and carries greater single-name and sector concentration risk than ITOT. From what I see in recent scans, this concentration shows up clearly in volatility metrics.

Industry and Thematic Backdrop

Both funds sit squarely within the U.S. large-cap equity complex, but their sensitivity to sector leadership differs sharply. ITOT's breadth means its performance tracks the broader market cycle, absorbing gains and losses across all eleven GICS sectors. SPMO's momentum methodology, by contrast, systematically tilts toward whatever has recently performed best — a characteristic that has kept it heavily allocated to semiconductors, artificial intelligence-related hardware, and other technology leaders during recent market cycles. Capital flows into factor-based and momentum strategies have been robust as investors seek to capture persistent trends. The key macro considerations affecting both include interest rate expectations, corporate earnings cycles, and the concentration of index returns in a handful of mega-cap technology names. The principal risk is that momentum can reverse abruptly, leaving SPMO more exposed to sharp drawdowns than a diversified total-market fund.

Performance and Positioning Comparison

In recent weeks and months, the two funds have diverged in ways that reflect their construction. ITOT has tracked the broad market closely, providing balanced exposure across sectors with relatively moderate volatility. SPMO has exhibited stronger absolute momentum during periods when technology and semiconductor leadership persisted, but has also shown higher volatility and sharper swings when that leadership wobbled. SPMO's concentration in names such as MU and NVDA amplifies both upside and downside relative to ITOT's diversified base. From a relative positioning standpoint, ITOT favors investors prioritizing diversification and low cost, while SPMO favors those accepting elevated concentration risk in exchange for trend exposure. Sector rotation, earnings cycles of mega-cap holdings, and shifts in interest rate expectations remain the primary drivers of the performance gap between the two. One thing that stands out is how these dynamics play out differently depending on an investor's time horizon.

Using AI Tools in My Research

I often rely on Tickeron’s AI Screener to compare ETF characteristics like holdings overlap, sector weights, and momentum signals side by side. It helps surface relevant filters quickly when evaluating strategies like these two funds, saving time on manual data pulls. This kind of tool fits naturally into a workflow focused on trend consistency and risk assessment.

Tickeron AI Verdict

Based on observable structural and trend characteristics, Tickeron's AI would currently favor SPMO over ITOT for trend-oriented investors. The reasoning centers on SPMO's concentrated exposure to high-momentum technology and semiconductor names, its consistent alignment with prevailing sector leadership, and its capacity to capture persistent price trends more directly than a diversified total-market fund. ITOT retains clear advantages in cost efficiency (0.03% versus 0.13%), diversification, and lower single-name risk. However, from a momentum and relative-strength perspective, SPMO's factor tilt gives it an edge in the current environment. This assessment is probabilistic and reflects trend consistency and sector momentum rather than a recommendation, and it should be weighed against each investor's risk tolerance.

Disclaimer

The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer.

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