STMSX vs. BGSAX
STMSX (SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund) and BGSAX (BlackRock Technology Opportunities Fund Investor A) are both mutual funds - STMSX is a Small Cap Blend Equities fund managed by BlackRock, while BGSAX is a Technology Equities fund managed by BlackRock. Over the past 10 years, STMSX returned 9.30%/yr vs 25.45%/yr for BGSAX. A 0.79 correlation means they provide meaningful diversification when combined. STMSX charges 1.11%/yr vs 1.20%/yr for BGSAX.
Performance
STMSX vs. BGSAX - Performance Comparison
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Returns By Period
In the year-to-date period, STMSX achieves a 13.80% return, which is significantly lower than BGSAX's 40.25% return. Over the past 10 years, STMSX has underperformed BGSAX with an annualized return of 9.30%, while BGSAX has yielded a comparatively higher 25.45% annualized return.
STMSX
- 1D
- 1.00%
- 1M
- 0.55%
- YTD
- 13.80%
- 6M
- 14.12%
- 1Y
- 27.87%
- 3Y*
- 16.26%
- 5Y*
- 6.46%
- 10Y*
- 9.30%
BGSAX
- 1D
- -2.00%
- 1M
- 11.03%
- YTD
- 40.25%
- 6M
- 37.20%
- 1Y
- 63.22%
- 3Y*
- 39.48%
- 5Y*
- 16.87%
- 10Y*
- 25.45%
STMSX vs. BGSAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
STMSX SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund | 13.80% | 8.67% | 13.34% | 12.97% | -16.91% | 23.68% | 10.41% | 21.99% | -12.34% | 15.89% |
BGSAX BlackRock Technology Opportunities Fund Investor A | 40.25% | 19.63% | 40.56% | 49.09% | -43.13% | 8.19% | 86.27% | 43.84% | 2.03% | 49.45% |
Correlation
The correlation between STMSX and BGSAX is 0.52, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.52 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.57 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.67 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.67 |
Correlation (All Time) Calculated using the full available price history since Jan 3, 2001 | 0.79 |
Over the past year, the correlation between STMSX and BGSAX has dropped to 0.52 - well below their long-term average of 0.79, suggesting their price drivers have been diverging.
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Return for Risk
STMSX vs. BGSAX — Risk / Return Rank
STMSX
BGSAX
STMSX vs. BGSAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund (STMSX) and BlackRock Technology Opportunities Fund Investor A (BGSAX). 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.
| STMSX | BGSAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.88 | ||
| Sortino ratioReturn per unit of downside risk | -0.71 | ||
| Omega ratioGain probability vs. loss probability | 1.29 | 1.42 | -0.12 |
| Calmar ratioReturn relative to maximum drawdown | 2.87 | 3.42 | -0.55 |
| Martin ratioReturn relative to average drawdown | 10.03 | 10.27 | -0.24 |
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
| STMSX | BGSAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.67 | 2.55 | -0.88 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.28 | 0.61 | -0.33 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.41 | 0.99 | -0.58 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.35 | 0.45 | -0.10 |
Drawdowns
STMSX vs. BGSAX - Drawdown Comparison
The maximum STMSX drawdown since its inception was -60.78%, smaller than the maximum BGSAX drawdown of -73.75%. Use the drawdown chart below to compare losses from any high point for STMSX and BGSAX.
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Drawdown Indicators
| STMSX | BGSAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -60.78% | -73.75% | +12.97% |
Max Drawdown (1Y)Largest decline over 1 year | -9.69% | -18.49% | +8.80% |
Max Drawdown (3Y)Largest decline over 3 years | -34.36% | -27.75% | -6.61% |
Max Drawdown (5Y)Largest decline over 5 years | -34.36% | -49.22% | +14.86% |
Max Drawdown (10Y)Largest decline over 10 years | -43.16% | -49.22% | +6.06% |
Current DrawdownCurrent decline from peak | -1.81% | -2.59% | +0.78% |
Average DrawdownAverage peak-to-trough decline | -10.61% | -26.36% | +15.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.77% | 6.15% | -3.38% |
Volatility
STMSX vs. BGSAX - Volatility Comparison
The current volatility for SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund (STMSX) is 4.38%, while BlackRock Technology Opportunities Fund Investor A (BGSAX) has a volatility of 9.56%. This indicates that STMSX experiences smaller price fluctuations and is considered to be less risky than BGSAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| STMSX | BGSAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.38% | 9.56% | -5.18% |
Volatility (6M)Calculated over the trailing 6-month period | 12.00% | 20.41% | -8.41% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.64% | 24.84% | -8.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.11% | 27.76% | -4.65% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.88% | 25.88% | -3.00% |
STMSX vs. BGSAX - Expense Ratio Comparison
STMSX has a 1.11% expense ratio, which is lower than BGSAX's 1.20% expense ratio.
Dividends
STMSX vs. BGSAX - Dividend Comparison
STMSX's dividend yield for the trailing twelve months is around 3.80%, less than BGSAX's 9.66% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BGSAX BlackRock Technology Opportunities Fund Investor A | 9.66% | 13.55% | 8.68% | 0.00% | 0.00% | 7.66% | 4.86% | 1.50% | 1.24% | 8.01% | 1.17% | 0.00% |
STMSX SEI Institutional Managed Trust Tax-Managed Small/Mid Cap Fund | 3.80% | 4.41% | 21.88% | 3.11% | 0.84% | 9.68% | 0.29% | 2.54% | 9.26% | 1.89% | 0.41% | 0.25% |
Frequently Asked Questions
STMSX and BGSAX have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BGSAX has higher volatility (9.56%) compared to STMSX (4.38%). In terms of maximum drawdown, STMSX dropped -60.78% vs BGSAX's -73.75%.
BGSAX currently has the higher Sharpe Ratio (2.55 vs 1.67), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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