BSTZ vs VOO
BlackRock Science and Technology Term Trust vs Vanguard S&P 500 ETF
Which is better, BSTZ or VOO?
Mid Cap Growth against Large Cap Blend.
VOO has a lower expense ratio. BSTZ led over 1Y, 3Y and the full window, VOO over 5Y.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | BSTZ | VOO |
|---|---|---|
| Expense Ratio | 1.05% | 0.03%Best |
| AUM | $2.2B | $1.0T |
| Dividend Yield | 7.13% | 1.04% |
| Holdings | 75 | 506 |
| YTD Return | +48.60%Best | +13.59% |
| 1Y Return | +56.96%Best | +16.33% |
| 3Y Return (annualized) | +40.14%Best | +23.81% |
| 5Y Return (annualized) | +8.12% | +14.02%Best |
| Volatility (annualized) | 28.6% | 16.3%Best |
| Max Drawdown | -59.3% | -34.3%Best |
| $10,000 over 5 years | $14,775 | $19,271Best |
| Fund Family | BlackRock, Inc. (US) | Vanguard (US) |
| Category | Equity | Equity |
| Style | Mid Cap Growth | Large Cap Blend |
| Inception | Jun 26, 2019 | Sep 7, 2010 |
Not shown on this pair: Top 10 Weight.
Volatility and max drawdown are measured over the window both funds cover: Jun 26, 2019 to Oct 2, 2026 (7.3 years).
BSTZ vs VOO growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view covers the 7.3 years both funds cover.
BSTZ vs VOO Performance
BlackRock Science and Technology Term Trust (BSTZ) is an ETF from BlackRock, Inc. (US) and Vanguard S&P 500 ETF (VOO) is an ETF from Vanguard (US). Over the past year BSTZ returned +56.96% while VOO returned +16.33%. Year to date, BSTZ is up 48.60% versus a gain of 13.59% for VOO.
Over three years, BSTZ compounded at +40.14% per year against +23.81% for VOO; over five years the annualized figures are +8.12% and +14.02% respectively. Across the full 7-year window we track, BSTZ has the edge at +15.81% annualized vs +15.55%.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
BSTZ has been the more volatile fund, with annualized monthly volatility of 28.6% compared with 16.3% for VOO. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -59.3% for BSTZ and -34.3% for VOO. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.82. They usually move together, but the gap leaves some room for diversification.
Fees and Cost Over Time
BSTZ charges 1.05% per year while VOO charges 0.03%. On a $10,000 position that is $105 vs $3 annually, a gap of $102 per year that compounds over a long holding period. On income, BSTZ currently yields 7.13% against 1.04% for VOO.
Holdings Overlap
At least 13.2% of VOO's money is in holdings BSTZ also owns.
Stated as a floor: for BSTZ, our book for it covers 62.9% of that fund, so a holding it does not list is one we cannot count as shared. The real figure is this or higher.
VOO and BSTZ share little of their money.
The two holdings books were reported 212 days apart, BSTZ as of Dec 31, 2025 and VOO as of Jul 31, 2026, so some of the difference between them is the time between the two reports rather than the funds.
14 positions in common, counted across the 55 positions we hold weights for in BSTZ and 494 in VOO, against full books of 75 and 506.
Top Shared Holdings
| Stock | Weight in BSTZ | Weight in VOO | Difference |
|---|---|---|---|
| NVDANvidia Corp | 8.29% | 7.55% | 0.74% |
| LITELumentum Holdings Inc | 3.96% | 0.09% | 3.87% |
| TSLATesla Inc | 1.47% | 1.36% | 0.11% |
| MUMicron Technology, Inc. | 0.64% | 1.44% | 0.80% |
| APPAppLovin Corp. Com Cl A | 1.90% | 0.17% | 1.73% |
| AMDAdvanced Micro Devices Inc | 0.68% | 1.21% | 0.53% |
| KLACKla Corp | 1.48% | 0.37% | 1.11% |
| MPWRMonolithic Power Systems Inc | 1.48% | 0.11% | 1.37% |
| PLTRPalantir Technologies Inc | 1.13% | 0.44% | 0.69% |
| FLEX:SIFlex Ltd | 0.90% | 0.07% | 0.83% |
You are not choosing between two funds in isolation.
Whichever of BSTZ and VOO you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, BSTZ or VOO?
BSTZ has an expense ratio of 1.05% while VOO charges 0.03%. VOO is the cheaper option, by $102 a year on a $10,000 investment.
Which performed better, BSTZ or VOO?
Over the past year BSTZ returned +56.96% vs +16.33% for VOO, so BSTZ leads on 1-year performance. Over the longest common window we track (7 years), BSTZ annualized +15.81% vs +15.55% for VOO. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, BSTZ or VOO?
BSTZ has been the more volatile fund at 28.6% annualized versus 16.3% for VOO. Worst drawdown: BSTZ -59.3% vs VOO -34.3%.
Should I hold both BSTZ and VOO?
BSTZ and VOO have a monthly-return correlation of 0.82, so their returns are far enough apart for the mix to behave differently from either one alone. This is information, not a recommendation.
What is the holdings overlap between BSTZ and VOO?
At least 13.2% of VOO's money is in holdings BSTZ also owns. Our book for BSTZ is partial, so the real figure is this or higher. They hold 14 positions in common, counted across the 55 positions we hold weights for in BSTZ and 494 in VOO.
Which pays a higher dividend, BSTZ or VOO?
BSTZ yields 7.13% while VOO yields 1.04%, so BSTZ currently pays the higher dividend yield.
Is VOO better than BSTZ?
VOO has a lower expense ratio. BSTZ led over 1Y, 3Y and the full window, VOO over 5Y. Which one suits a particular account depends on what it is for. This is information, not a recommendation.