BSTSX Performance — BlackRock Technology Opportunities Fund, Service Class
Data updated: 2026-09-24
BSTSX returned +38.01% year to date and +64.91% over one year to May 2026. Annualised returns are +37.72% over 3 years and +15.46% over 5 years. The fund beat its Technology Equity category average: $100 invested three years ago grew to $261, against $237 for the category, and to $165 over one year, against $158. Volatility over the past three years was 25.18% a year. In the 12 months to May 2026 the fund lost a net $196.1M, and assets reached $8.63B.
BSTSX Growth of $100
What $100 invested in BlackRock Technology Opportunities Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Technology Equity category average over the same months.
| Period | BSTSX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $165 | $158 |
| 3 years (Jun 2023 – May 2026) | $261 | $237 |
| 5 years (Jun 2021 – May 2026) | $205 | $212 |
| Since data start (Jul 2019 – May 2026) | $420 | $377 |
BSTSX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +38.01% |
| 1 year | +64.91% |
| 3 years (annualised) | +37.72% |
| 5 years (annualised) | +15.46% |
BSTSX Annual Returns
Calendar-year total returns of BlackRock Technology Opportunities Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +38.01% |
| 2025 | +19.53% |
| 2024 | +34.74% |
| 2023 | +49.13% |
| 2022 | −43.14% |
| 2021 | +8.08% |
| 2020 | +86.25% |
| 2019 (Jul–Dec) | +10.76% |
BSTSX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +2.3% | −1.5% | −7.0% | +24.9% | +17.9% | — | — | — | — | — | — | — |
| 2025 | +2.1% | −4.2% | −11.1% | +3.3% | +11.3% | +9.4% | +3.0% | +0.1% | +7.2% | +6.3% | −6.3% | −0.9% |
| 2024 | +4.3% | +8.7% | +1.2% | −5.8% | +7.8% | +8.5% | −4.0% | +2.1% | +3.2% | −0.4% | +5.6% | +0.2% |
| 2023 | +12.0% | −0.4% | +7.6% | −3.0% | +9.1% | +6.1% | +3.9% | −2.2% | −6.7% | −2.3% | +14.1% | +4.9% |
| 2022 | −14.1% | −4.7% | +2.2% | −14.9% | −3.6% | −11.1% | +13.7% | −4.9% | −11.9% | +1.6% | +5.7% | −8.8% |
| 2021 | +2.7% | +0.9% | −5.9% | +4.4% | −2.5% | +8.2% | +1.1% | +3.0% | −6.1% | +7.1% | −1.9% | −2.0% |
| 2020 | +4.8% | −2.5% | −10.8% | +16.1% | +12.5% | +10.3% | +9.8% | +7.7% | −2.8% | +0.3% | +13.6% | +8.2% |
| 2019 | — | — | — | — | — | — | +3.5% | −1.9% | −4.0% | +3.1% | +5.5% | +4.5% |
BSTSX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 25.18%
- 3-year Sharpe ratio: 1.32 (vs 4.5% risk-free rate)
- Best month: +24.90% (Apr 2026)
- Worst month: −11.06% (Mar 2025)
BSTSX Fund Flows
Monthly money in and out of BlackRock Technology Opportunities Fund, from SEC Form N-PORT.
- 12-month net flow: −$196.1M
- 12-month gross sales (incl. reinvestments): $1.9B
- Sales ÷ redemptions: 0.91×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $110.7M | $239.0M | −$128.3M |
| Apr 2026 | $83.2M | $148.4M | −$65.2M |
| Mar 2026 | $67.4M | $202.3M | −$134.9M |
| Feb 2026 | $65.7M | $147.8M | −$82.1M |
| Jan 2026 | $83.7M | $164.8M | −$81.1M |
| Dec 2025 | $515.1M | $182.1M | $333.0M |
| Nov 2025 | $93.9M | $120.8M | −$27.0M |
| Oct 2025 | $110.3M | $195.2M | −$84.9M |
| Sep 2025 | $94.3M | $234.5M | −$140.1M |
| Aug 2025 | $82.4M | $136.8M | −$54.5M |
| Jul 2025 | $463.5M | $189.5M | $273.9M |
| Jun 2025 | $102.4M | $107.4M | −$5.0M |
BSTSX Assets Under Management
Net assets of BlackRock Technology Opportunities Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-29 | $8.63B |
| 2026-02-27 | $6.59B |
| 2025-11-28 | $6.87B |
| 2025-08-29 | $6.66B |
| 2025-05-30 | $6.06B |
| 2025-02-28 | $5.91B |
| 2024-11-29 | $6.12B |
| 2024-08-30 | $5.71B |
| 2024-05-31 | $5.34B |
| 2024-02-29 | $5.34B |
| 2023-11-30 | $4.65B |
| 2023-08-31 | $4.62B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.