VOO vs VTI

Key Takeaways

• VOO tracks the S&P 500 Index, offering exposure to roughly 500 large-cap U.S. companies, while VTI tracks the CRSP US Total Market Index, spanning more than 3,500 stocks across large-, mid-, and small-cap segments.
• Both funds charge an identical, ultra-low expense ratio of 0.03%, so cost is not a differentiator in this ETF comparison.
• VOO is more concentrated at the top, with its ten largest holdings representing a larger share of assets, whereas VTI dilutes that concentration with thousands of smaller companies.
• Despite the holdings gap, the two funds share nearly the same top holdings and sector exposure, meaning their performance drivers are highly correlated.
• VTI offers the same large-cap core as VOO while adding mid- and small-cap diversification at no additional cost.
• Tickeron AI Verdict: VTI — the broader diversification and identical cost profile give VTI a marginal structural edge for long-term investors.

Introduction

The Vanguard S&P 500 ETF (VOO) and the Vanguard Total Stock Market ETF (VTI) are two of the most widely held exchange-traded funds (ETFs) in the world, and both are frequently treated as interchangeable core holdings for U.S. equity investors. They do not compete on cost, since each charges 0.03% annually. Instead, the comparison turns on a single structural question: how much of the U.S. stock market does an investor want to own? VOO stops at the largest 500 companies, while VTI extends down the capitalization ladder into thousands of smaller firms. Understanding that distinction is central to evaluating relative positioning in the current market environment.

Vanguard S&P 500 ETF (VOO) Overview

VOO is a passively managed, market-capitalization-weighted index fund that seeks to track the S&P 500 Index, a benchmark of approximately 500 of the largest publicly traded U.S. companies. The fund holds roughly 505 stocks and carries an expense ratio of 0.03%, making it one of the cheapest ways to access large-cap U.S. equities. Its top holdings include NVDA, AAPL, MSFT, AMZN, GOOGL, AVGO, META, TSLA, and BRK.B. By sector, technology dominates at roughly one-third of assets, followed by financials, health care, consumer discretionary, and communication services. The index is reviewed quarterly, with constituent changes made by the S&P committee as needed.

Vanguard Total Stock Market ETF (VTI) Overview

VTI is a passively managed, market-capitalization-weighted fund that tracks the CRSP US Total Market Index, a benchmark representing virtually the entire investable U.S. equity market. The fund holds more than 3,500 stocks, spanning mega-cap, mid-cap, and small-cap companies, and charges an expense ratio of 0.03%. Its largest positions mirror VOO's — NVDA, AAPL, MSFT, AMZN, GOOGL, AVGO, META, and TSLA — but at slightly lower individual weights. Technology is the largest sector allocation at roughly 36% of assets, with consumer discretionary, industrials, financials, and health care rounding out the top five. Because it is market-cap weighted, VTI's small- and mid-cap holdings are numerous but collectively represent a modest portion of the portfolio.

Industry and Thematic Backdrop

Both funds are anchored by the same mega-cap technology complex that has driven a large share of U.S. index returns across recent market cycles. Artificial intelligence investment, cloud computing demand, and semiconductor supply dynamics remain key catalysts for the largest constituents of each fund. At the same time, interest-rate expectations and inflation trends continue to shape sentiment toward smaller companies, which are generally more sensitive to financing costs. Broader macro themes — including corporate earnings resilience, labor market conditions, and capital flows into passive index products — affect VOO and VTI in similar ways. The key divergence in the current environment is the relative performance of small- and mid-cap stocks versus large-caps, a factor that matters far more to VTI than to VOO.

Performance and Positioning Comparison

Because VOO and VTI share their ten largest holdings and maintain near-identical sector tilts, their fund performance has tracked closely in recent weeks and months. Differences in relative performance have been driven primarily by the small- and mid-cap sleeve that exists only in VTI. During periods when large-cap technology leadership is dominant, VOO tends to hold a modest advantage, as its higher concentration in the biggest names amplifies momentum. When market breadth widens and smaller companies participate, VTI's additional holdings provide a slight cushion and a different set of return drivers. Volatility between the two funds remains nearly indistinguishable, reflecting the fact that VTI is still overwhelmingly influenced by the same mega-cap names that define VOO.

AI Screener

Tickeron's AI Screener is an AI-powered stock and ETF discovery tool that helps traders and investors filter the market based on technical patterns, fundamentals, trends, volatility, and AI-driven signals. Users can scan thousands of stocks and ETFs using customizable filters such as industry, market capitalization, technical indicators, price patterns, and performance metrics. The screener is designed to identify trade ideas, trending stocks, breakout candidates, and market opportunities more efficiently than manual screening, helping investors focus their attention on the most relevant opportunities in a given market environment. Explore the AI Screener to see how AI-driven filtering can refine your ETF comparison workflow.

Tickeron AI Verdict

On structural grounds, Tickeron's AI would likely favor VTI over VOO for long-term, broadly diversified investors. Both funds offer identical cost efficiency and nearly the same large-cap core, yet VTI delivers that exposure while also capturing mid- and small-cap companies that VOO entirely excludes. That added breadth provides a probabilistic diversification benefit without a meaningful increase in expense or drawdown risk, and it leaves VTI better positioned to participate in market-breadth expansion. While VOO remains a superior vehicle for investors who specifically want pure large-cap exposure, VTI's broader relative positioning and equal cost profile give it a marginal structural edge across a full market cycle.

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.

Disclaimers and Limitations