VOO vs IVV vs SPY vs VTI vs QQQ vs VEA vs VUG vs VTV
These eight ETFs sit in more portfolios than almost anything else on the market. They are also frequently confused, misused, and over-combined. This post cuts through the noise: what index each one tracks, how broad it is, where the style tilts, and when to reach for it over the alternatives.
Quick Reference: All Eight at a Glance
| Ticker | Index Tracked | Geographic Scope | Size Scope | Style | Expense Ratio |
|---|---|---|---|---|---|
| VOO | S&P 500 | US only | Large-cap | Blend | 0.03% |
| IVV | S&P 500 | US only | Large-cap | Blend | 0.03% |
| SPY | S&P 500 | US only | Large-cap | Blend | 0.0945% |
| VTI | CRSP US Total Market | US only | Large + Mid + Small | Blend | 0.03% |
| QQQ | Nasdaq-100 | US (non-financial) | Large-cap | Growth / Tech | 0.18% |
| VEA | FTSE Dev. All Cap ex-US | Developed ex-US | Large + Mid + Small | International | 0.03% |
| VUG | CRSP US Large Cap Growth | US only | Large-cap | Growth | 0.03% |
| VTV | CRSP US Large Cap Value | US only | Large-cap | Value | 0.03% |
Individual Breakdowns
VOO / IVV / SPY
These three are, at their core, the same fund. All three track the S&P 500 — the 500 largest US companies by market cap, covering roughly 80% of the total US equity market. The differences are in structure and cost, not in underlying exposure.
VOO and IVV are the natural choice for buy-and-hold investors. Both carry a 0.03% expense ratio, which over decades translates to a meaningful cost advantage. SPY is the original US ETF, launched in 1993 by State Street, and it carries a higher expense ratio of 0.0945%. What SPY has in its favor is exceptional liquidity — it is one of the most actively traded securities in the world — which matters more to institutional traders and options hedgers than to long-term individual investors.
For most retail investors building a portfolio over years, the choice between VOO and IVV comes down to which brokerage you use, not investment merit. SPY makes sense primarily when intraday liquidity or options depth is a priority.
VTI
VTI tracks the CRSP US Total Market Index, which means it holds nearly every publicly traded US company — large, mid, and small cap. Where VOO/IVV/SPY hold roughly 500 companies, VTI holds more than 3,600.
In practice, the return difference between VTI and VOO over long periods has been small, because large-caps dominate market-cap-weighted indexes regardless. However, VTI gives you genuine small- and mid-cap exposure without needing to buy a separate fund. If your philosophy is to own the entire US market rather than just its largest companies, VTI is the cleaner expression of that.
QQQ
QQQ is fundamentally different from the S&P 500 funds. It tracks the Nasdaq-100, which is the 100 largest non-financial companies listed on the Nasdaq exchange. That word “non-financial” matters: banks, insurers, and asset managers are excluded by definition.
The result is a fund that is heavily concentrated in technology and consumer tech-adjacent companies. The top holdings — Apple, Microsoft, Nvidia, Amazon, Meta, Alphabet — overlap significantly with S&P 500 funds, but QQQ weights them more aggressively. When tech runs, QQQ leads. When tech corrects, QQQ falls harder. It is not a broad-market fund; it is a deliberate technology and growth tilt.
At 0.18%, its expense ratio is notably higher than the Vanguard and iShares alternatives, which is worth factoring in for long-term positions. A lower-cost alternative is QQQM, structured for buy-and-hold investors, while QQQ itself remains the dominant choice for traders given its liquidity.
VEA
VEA is the only fund on this list that exits the United States entirely. It tracks the FTSE Developed All Cap ex-US Index, giving you broad exposure to large, mid, and small-cap companies across developed markets outside the US — primarily Europe, Japan, Canada, Australia, and South Korea.
VEA is not a replacement for any of the other seven funds here. It is a complement. Investors who want to reduce home-country bias or capture international developed market exposure typically pair VEA with a US fund rather than substituting one for the other. It is also worth noting that VEA’s performance is materially affected by currency movements, since its holdings are denominated in local currencies.
VUG
VUG tracks the CRSP US Large Cap Growth Index. CRSP classifies companies as growth or value based on a multi-factor model looking at future earnings growth, historical earnings growth, sales growth, book-to-price ratio, and other metrics. VUG takes the growth half of that large-cap universe.
The result is a more concentrated portfolio than VOO or VTI — approximately 150 to 200 holdings — with significantly higher weights in technology-adjacent companies. VUG and QQQ often overlap heavily in their top holdings (Apple, Microsoft, Nvidia), but they are built on different methodologies. QQQ is exchange-defined (Nasdaq-100 membership), while VUG is style-defined (growth factor screen).
VUG’s expense ratio of 0.03% makes it cheaper than QQQ for the same general style tilt.
VTV
VTV is the mirror image of VUG. It tracks the CRSP US Large Cap Value Index — the value half of the same large-cap universe. Where VUG holds companies growing fast, VTV holds companies priced cheaply relative to their fundamentals: financials, healthcare, energy, industrials, and consumer staples tend to dominate.
Because VTV and VUG slice the same large-cap universe in half, combining both in equal weight will give you something close to VOO. Each on its own represents a deliberate factor tilt. Historically, value has had long periods of underperformance relative to growth, particularly in the low-rate environment of the 2010s, but it also has decades of academic evidence behind it as a premium over the very long run.
Where They Overlap
Understanding the overlaps prevents unintentional concentration inside a portfolio that looks diversified on the surface.
Identical underlying exposure. Holding more than one of these is redundant — you own the same 500 companies three times over.
VTI’s large-cap core is effectively VOO. The difference is the ~3,100 additional mid- and small-cap positions that make up roughly 20% of VTI’s weight.
Apple, Microsoft, Nvidia, Amazon, and Alphabet dominate both. The similarity at the top is high, but the methodology and sector composition beneath differ — QQQ excludes financials, VUG includes them if they screen as growth.
CRSP splits the large-cap universe into growth and value halves. Holding VUG and VTV in proportion approximates the same exposure as VOO, with the added ability to tilt toward one style factor.
No meaningful overlap with any of the other seven. VEA is your international developed markets component; the others are entirely or primarily US-focused.
The Nasdaq-100’s largest names are also S&P 500 members. Pairing QQQ with VOO overweights big tech relative to holding either alone.
Decision Guide
Bottom Line
VOO, IVV, and SPY are three packaging options for the same product. VTI is that same product made broader. QQQ and VUG are tech and growth tilts, with QQQ being exchange-defined and more expensive, and VUG being style-factor-defined and cheaper. VTV is the value counterpart to VUG. VEA is the only fund here that leaves US soil entirely.
A clean global portfolio can be built from as few as two of these funds. A US-only portfolio can be built from one. The more of these you layer together without intention, the more you end up replicating a more expensive version of VTI while thinking you have diversified.
Know what each one does. Then use the minimum number needed to express your actual view.
This 2026 ETF comparison explains the real differences between VOO, IVV, SPY, VTI, QQQ, VEA, VUG, and VTV, so investors can choose the right core, growth, value, or international fund for their portfolio.
