Wealthy PotVGT vs VOO: A Pure Tech Bet vs the Whole S&P 500
VGT and VOO are both cheap Vanguard funds, but they're worlds apart in risk. VGT owns only technology stocks; VOO owns the entire S&P 500. Tech's dominance over the past decade made VGT the bigger winner, but a single-sector fund is a concentrated bet that can turn on you. This guide uses figures from Vanguard's fund documents.
The Short Answer
- Want one diversified core holding? VOO. The S&P 500 spans all sectors and 500 companies at 0.03%, the standard U.S. large-cap foundation.
- Want a concentrated bet on technology? VGT. It holds only tech stocks (~321), has far out-returned the S&P over the past decade, and is cheap (0.09%), but it's much more volatile and undiversified.
VGT is a slice of the market VOO already contains; this is a decision about concentration and risk, not two separate universes.
One Sector vs the Whole Market
- VGT is the Vanguard Information Technology ETF. It tracks the MSCI US Investable Market Information Technology 25/50 Index, only technology companies (~321 holdings across large, mid, and small caps). Its top holdings, and a large share of the fund, are a handful of mega-cap tech names.
- VOO is the Vanguard S&P 500 ETF. It tracks the S&P 500, about 506 large-cap companies across all 11 sectors, including the same big tech names VGT holds, plus financials, healthcare, energy, and everything else.
Because the S&P 500 is already tech-heavy by weight, VGT and VOO share their largest holdings, VGT just concentrates entirely into the tech sector and drops the rest of the market.
VGT vs VOO Side by Side
| Feature | VGT | VOO |
|---|---|---|
| Fund | Vanguard Information Technology ETF | Vanguard S&P 500 ETF |
| Index tracked | MSCI US IMI Information Technology 25/50 | S&P 500 |
| Expense ratio | 0.09% | 0.03% |
| What it holds | ~321 technology stocks only | ~506 large-cap stocks (all sectors) |
| SEC 30-day yield | ~0.33% | ~0.98% |
| Diversification | Single sector (tech) | All 11 sectors |
| 10-year return (avg annual, NAV) | 25.60% | 15.47% |
| Growth of $10,000 over those 10 years (hypothetical) | $97,700 | $42,140 |
The Return Gap, Explained
VGT's ~25.6% a year against VOO's ~15.5% over the past decade is a huge gap, roughly $97,700 vs $42,140 on a $10,000 start. But that's the story of one sector having an extraordinary run, not a reason to bet everything on it. Technology led the market for a decade, and VGT is pure tech, so it captured all of that, and it will capture all of the downside when tech falls out of favor.
Single-sector funds are far more volatile than the broad market. In the 2022 downturn, tech dropped much harder than the S&P 500. Choosing VGT over VOO is a concentrated bet that technology keeps leading; that's been right recently, but no sector leads forever. Piling in purely because of the trailing return is the recency-bias trap covered in why time in the market beats timing it.
Which One Fits You
Choose VOO if: you want a diversified, low-cost core that holds the whole large-cap market across every sector. It already owns the big tech names, without betting the whole portfolio on them. It's the sensible foundation for most investors.
Choose VGT if: you specifically want extra technology exposure, understand it's a concentrated, higher-volatility bet, and you'd use it as a satellite tilt around a diversified core, not as your entire portfolio. For a broader growth alternative, compare VGT vs QQQ and QQQ vs VOO.
FAQ
Is VGT or VOO better?
They serve very different roles. VOO is a diversified S&P 500 core at 0.03%; VGT is a pure technology-sector fund at 0.09% that has far out-returned VOO recently but is much more concentrated and volatile. For a single core holding, VOO; for a deliberate tech tilt, VGT as a satellite.
Why has VGT outperformed VOO by so much?
VGT holds only technology, the sector that dominated market returns over the past decade, so it captured all of that upside. VOO holds tech too, but diluted across all 11 sectors. That concentration also means VGT falls harder when tech underperforms. Past performance doesn't predict the future.
Is VGT too risky to own?
It's a single-sector fund, so it's significantly more volatile and less diversified than the broad S&P 500. Most investors use a fund like VGT as a small tilt around a diversified core (like VOO), not as their whole portfolio.
Can I hold both VGT and VOO?
Yes, a common setup is VOO as the diversified core with a smaller VGT position to overweight technology. Just remember VOO already holds a lot of tech, so adding VGT amplifies a bet you partly have already.
Related comparisons: VGT vs QQQ · VGT vs QQQM · QQQ vs VOO · SCHG vs VOO · All ETF comparisons
Primary sources: expense ratios, indexes, holdings, yields, and returns are from Vanguard's official fund documents for VGT and VOO, both as of Jun 30, 2026 (SEC yields as of Aug 31, 2026). For background, see the SEC's Investor.gov guide to mutual funds and ETFs.
This article is for educational purposes only and is not investment advice. Investing involves risk, including possible loss of principal, and past performance does not guarantee future results. Single-sector funds are concentrated and more volatile than the broad market. Expense ratios, yields, and holdings change over time; confirm current figures on Vanguard's site before investing. Consult a qualified financial professional before making investment decisions.