BST vs. SPY
Compare and contrast key facts about BlackRock Science and Technology Trust (BST) and State Street SPDR S&P 500 ETF (SPY).
SPY is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Jan 22, 1993.
Performance
BST vs. SPY - Performance Comparison
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BST vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BST BlackRock Science and Technology Trust | -8.64% | 23.65% | 17.96% | 30.07% | -38.28% | -0.35% | 69.27% | 34.57% | 8.84% | 57.43% |
SPY State Street SPDR S&P 500 ETF | -4.37% | 17.72% | 24.89% | 26.18% | -18.18% | 28.73% | 18.33% | 31.22% | -4.57% | 21.71% |
Returns By Period
In the year-to-date period, BST achieves a -8.64% return, which is significantly lower than SPY's -4.37% return. Over the past 10 years, BST has outperformed SPY with an annualized return of 16.73%, while SPY has yielded a comparatively lower 13.98% annualized return.
BST
- 1D
- 3.50%
- 1M
- -8.97%
- YTD
- -8.64%
- 6M
- -6.04%
- 1Y
- 22.64%
- 3Y*
- 14.09%
- 5Y*
- 0.29%
- 10Y*
- 16.73%
SPY
- 1D
- 2.91%
- 1M
- -4.94%
- YTD
- -4.37%
- 6M
- -1.82%
- 1Y
- 17.59%
- 3Y*
- 18.19%
- 5Y*
- 11.69%
- 10Y*
- 13.98%
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Return for Risk
BST vs. SPY — Risk / Return Rank
BST
SPY
BST vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for BlackRock Science and Technology Trust (BST) and State Street SPDR S&P 500 ETF (SPY). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| BST | SPY | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.03 | 0.93 | +0.11 |
Sortino ratioReturn per unit of downside risk | 1.54 | 1.45 | +0.08 |
Omega ratioGain probability vs. loss probability | 1.22 | 1.22 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | 1.36 | 1.53 | -0.16 |
Martin ratioReturn relative to average drawdown | 4.44 | 7.30 | -2.86 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| BST | SPY | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.03 | 0.93 | +0.11 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.01 | 0.69 | -0.68 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.66 | 0.78 | -0.13 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.55 | 0.56 | -0.01 |
Correlation
The correlation between BST and SPY is 0.70, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
BST vs. SPY - Dividend Comparison
BST's dividend yield for the trailing twelve months is around 11.56%, more than SPY's 1.14% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BST BlackRock Science and Technology Trust | 11.56% | 10.36% | 8.21% | 8.91% | 10.57% | 5.38% | 3.85% | 10.52% | 6.41% | 4.80% | 6.69% | 6.93% |
SPY State Street SPDR S&P 500 ETF | 1.14% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Drawdowns
BST vs. SPY - Drawdown Comparison
The maximum BST drawdown since its inception was -47.72%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for BST and SPY.
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Drawdown Indicators
| BST | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -47.72% | -55.19% | +7.47% |
Max Drawdown (1Y)Largest decline over 1 year | -15.31% | -12.05% | -3.26% |
Max Drawdown (5Y)Largest decline over 5 years | -47.72% | -24.50% | -23.22% |
Max Drawdown (10Y)Largest decline over 10 years | -47.72% | -33.72% | -14.00% |
Current DrawdownCurrent decline from peak | -12.35% | -6.24% | -6.11% |
Average DrawdownAverage peak-to-trough decline | -13.14% | -9.09% | -4.05% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.70% | 2.52% | +2.18% |
Volatility
BST vs. SPY - Volatility Comparison
BlackRock Science and Technology Trust (BST) has a higher volatility of 7.49% compared to State Street SPDR S&P 500 ETF (SPY) at 5.31%. This indicates that BST's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BST | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.49% | 5.31% | +2.18% |
Volatility (6M)Calculated over the trailing 6-month period | 13.67% | 9.47% | +4.20% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.03% | 19.05% | +2.98% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.46% | 17.06% | +6.40% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.59% | 17.92% | +7.67% |