BlackRock Science and Technology Trust
Symbol: BST
Exchange: NYSE
Sector: N/A
Category: N/A
Inception date: N/A
Latest date: 15/10/2026
Current price: $48.55
Expense ratio: N/A
Period performance
Adjusted cumulative ETF performance, normalized to the first available adjusted price in the selected period.
Performance metrics
Period total return
2.43%
Ann. -55.00% (Sharpe / Sortino numerator)
Volatility
26.86%
Sharpe ratio
-2.183
VaR 95%
-2.87%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
8.62%
Ann. -26.46% (Sharpe / Sortino numerator)
Volatility
21.30%
Sharpe ratio
-1.413
VaR 95%
-2.25%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
27.41%
Ann. -10.11% (Sharpe / Sortino numerator)
Volatility
19.74%
Sharpe ratio
-0.696
VaR 95%
-2.24%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
34.51%
Ann. 21.55% (Sharpe / Sortino numerator)
Volatility
22.03%
Sharpe ratio
0.814
VaR 95%
-2.08%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
64.58%
Ann. 11.32% (Sharpe / Sortino numerator)
Volatility
21.10%
Sharpe ratio
0.364
VaR 95%
-2.11%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
105.98%
Ann. 14.79% (Sharpe / Sortino numerator)
Volatility
19.83%
Sharpe ratio
0.563
VaR 95%
-2.03%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Daily returns for period 12M
Daily simple returns from the same adjusted closes used by the performance chart: 15/10/2025 - 15/10/2026.
Average daily return
0.129%
Best day
4.172%
Worst day
-5.542%
Days with data
251
Recent price history (last 90 days)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| 15/10/2026 | $48.20 | $48.63 | $47.60 | $48.55 | 91,200 |
| 14/10/2026 | $49.52 | $49.95 | $48.66 | $48.82 | 70,800 |
| 13/10/2026 | $49.98 | $50.20 | $49.38 | $50.09 | 71,200 |
| 12/10/2026 | $50.54 | $50.55 | $50.00 | $50.28 | 46,700 |
| 09/10/2026 | $50.27 | $50.73 | $50.13 | $50.54 | 31,000 |
| 08/10/2026 | $50.68 | $51.03 | $49.72 | $50.10 | 65,200 |
| 07/10/2026 | $50.67 | $51.12 | $50.43 | $50.84 | 58,600 |
| 06/10/2026 | $50.75 | $51.19 | $50.28 | $51.04 | 149,300 |
| 05/10/2026 | $51.40 | $51.97 | $50.28 | $50.52 | 131,600 |
| 02/10/2026 | $51.44 | $52.32 | $51.30 | $51.33 | 135,300 |