BRMKX vs. BGSAX
BRMKX (iShares Russell Mid-Cap Index Fund) and BGSAX (BlackRock Technology Opportunities Fund Investor A) are both mutual funds - BRMKX is a Mid Cap Blend Equities fund managed by BlackRock, while BGSAX is a Technology Equities fund managed by BlackRock. Over the past 10 years, BRMKX returned 12.12%/yr vs 26.34%/yr for BGSAX. A 0.73 correlation means they provide meaningful diversification when combined. BRMKX charges 0.06%/yr vs 1.20%/yr for BGSAX.
Performance
BRMKX vs. BGSAX - Performance Comparison
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Returns By Period
In the year-to-date period, BRMKX achieves a 14.11% return, which is significantly lower than BGSAX's 43.67% return. Over the past 10 years, BRMKX has underperformed BGSAX with an annualized return of 12.12%, while BGSAX has yielded a comparatively higher 26.34% annualized return.
BRMKX
- 1D
- 0.51%
- 1M
- 3.34%
- YTD
- 14.11%
- 6M
- 12.58%
- 1Y
- 22.60%
- 3Y*
- 17.54%
- 5Y*
- 8.49%
- 10Y*
- 12.12%
BGSAX
- 1D
- 0.07%
- 1M
- 9.19%
- YTD
- 43.67%
- 6M
- 42.15%
- 1Y
- 65.19%
- 3Y*
- 39.96%
- 5Y*
- 16.00%
- 10Y*
- 26.34%
BRMKX vs. BGSAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BRMKX iShares Russell Mid-Cap Index Fund | 14.11% | 10.48% | 15.28% | 17.30% | -17.22% | 22.52% | 17.17% | 30.47% | -9.09% | 17.74% |
BGSAX BlackRock Technology Opportunities Fund Investor A | 43.67% | 19.63% | 40.56% | 49.09% | -43.13% | 8.19% | 86.27% | 43.84% | 2.03% | 49.45% |
Correlation
The correlation between BRMKX and BGSAX is 0.56, 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 | 0.56 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.60 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.73 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.72 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016 | 0.73 |
The correlation between BRMKX and BGSAX shifts across timeframes, from 0.56 (1 year) to 0.73 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
BRMKX vs. BGSAX — Risk / Return Rank
BRMKX
BGSAX
BRMKX vs. BGSAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell Mid-Cap Index Fund (BRMKX) 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| BRMKX | BGSAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.71 | ||
| Sortino ratioReturn per unit of downside risk | -0.50 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 1.41 | -0.11 |
| Calmar ratioReturn relative to maximum drawdown | 2.90 | 3.65 | -0.75 |
| Martin ratioReturn relative to average drawdown | 11.11 | 10.67 | +0.44 |
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Drawdowns
BRMKX vs. BGSAX - Drawdown Comparison
The maximum BRMKX drawdown since its inception was -40.20%, smaller than the maximum BGSAX drawdown of -73.75%. Use the drawdown chart below to compare losses from any high point for BRMKX and BGSAX.
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Drawdown Indicators
| BRMKX | BGSAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -40.20% | -73.75% | +33.55% |
Max Drawdown (1Y)Largest decline over 1 year | -8.17% | -18.49% | +10.32% |
Max Drawdown (3Y)Largest decline over 3 years | -21.07% | -27.75% | +6.68% |
Max Drawdown (5Y)Largest decline over 5 years | -26.04% | -49.22% | +23.18% |
Max Drawdown (10Y)Largest decline over 10 years | -40.20% | -49.22% | +9.02% |
Current DrawdownCurrent decline from peak | -0.23% | -0.22% | -0.01% |
Average DrawdownAverage peak-to-trough decline | -5.63% | -26.33% | +20.70% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.13% | 6.32% | -4.19% |
Volatility
BRMKX vs. BGSAX - Volatility Comparison
The current volatility for iShares Russell Mid-Cap Index Fund (BRMKX) is 4.44%, while BlackRock Technology Opportunities Fund Investor A (BGSAX) has a volatility of 14.30%. This indicates that BRMKX 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
| BRMKX | BGSAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.44% | 14.30% | -9.86% |
Volatility (6M)Calculated over the trailing 6-month period | 10.47% | 23.64% | -13.17% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.86% | 27.91% | -14.05% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.30% | 28.33% | -10.03% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.35% | 26.20% | -6.85% |
BRMKX vs. BGSAX - Expense Ratio Comparison
BRMKX has a 0.06% expense ratio, which is lower than BGSAX's 1.20% expense ratio.
Dividends
BRMKX vs. BGSAX - Dividend Comparison
BRMKX's dividend yield for the trailing twelve months is around 5.22%, less than BGSAX's 9.43% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
BGSAX BlackRock Technology Opportunities Fund Investor A | 9.43% | 13.55% | 8.68% | 0.00% | 0.00% | 7.66% | 4.86% | 1.50% | 1.24% | 8.01% | 1.17% |
BRMKX iShares Russell Mid-Cap Index Fund | 5.22% | 5.92% | 6.43% | 3.02% | 3.67% | 4.07% | 2.86% | 3.95% | 3.87% | 19.24% | 2.11% |
Frequently Asked Questions
BRMKX and BGSAX have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BGSAX has higher volatility (14.30%) compared to BRMKX (4.44%). In terms of maximum drawdown, BRMKX dropped -40.20% vs BGSAX's -73.75%.
BGSAX currently has the higher Sharpe Ratio (2.43 vs 1.71), 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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