RMBKX vs. BGSAX
RMBKX (RMB Mendon Financial Services Fund) and BGSAX (BlackRock Technology Opportunities Fund Investor A) are both mutual funds - RMBKX is a Financials Equities fund managed by BlackRock, while BGSAX is a Technology Equities fund actively managed by BlackRock. Over the past 10 years, RMBKX returned 11.37%/yr vs 23.00%/yr for BGSAX. Their 0.41 correlation means their historical movements had little consistent relationship. RMBKX charges 1.27%/yr vs 1.14%/yr for BGSAX.
Performance
RMBKX vs. BGSAX - Performance Comparison
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Returns By Period
In the year-to-date period, RMBKX achieves a 20.12% return, which is significantly lower than BGSAX's 22.08% return. Over the past 10 years, RMBKX has underperformed BGSAX with an annualized return of 11.37%, while BGSAX has yielded a comparatively higher 23.00% annualized return.
RMBKX
- 1D
- -0.50%
- 1M
- -0.14%
- 6M
- 16.12%
- YTD
- 20.12%
- 1Y
- 43.23%
- 3Y*
- 19.85%
- 5Y*
- 9.64%
- 10Y*
- 11.37%
- ALL TIME*
- 12.68%
BGSAX
- 1D
- 7.10%
- 1M
- -7.32%
- 6M
- 19.39%
- YTD
- 22.08%
- 1Y
- 32.24%
- 3Y*
- 29.84%
- 5Y*
- 11.65%
- 10Y*
- 23.00%
- ALL TIME*
- 10.39%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
RMBKX vs. BGSAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
RMBKX RMB Mendon Financial Services Fund | 20.12% | 12.84% | 17.07% | 4.56% | -19.18% | 56.40% | -5.73% | 22.82% | -17.13% | 12.17% |
BGSAX BlackRock Technology Opportunities Fund Investor A | 22.08% | 19.63% | 40.56% | 49.09% | -43.13% | 8.19% | 86.27% | 43.84% | 2.03% | 49.45% |
Correlation
The correlation between RMBKX and BGSAX is 0.14, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.14 |
Correlation (3Y) Balances recent behavior with more history. | 0.27 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.40 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.36 |
Correlation (All Time) Calculated using the full available price history since Aug 3, 2012 | 0.41 |
Over the past year, the correlation between RMBKX and BGSAX has dropped to 0.14 - well below their long-term average of 0.41, suggesting their price drivers have been diverging.
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Return for Risk
RMBKX vs. BGSAX — Risk / Return Rank
RMBKX
BGSAX
RMBKX vs. BGSAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for RMB Mendon Financial Services Fund (RMBKX) 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.
| RMBKX | BGSAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.99 | ||
| Sortino ratioReturn per unit of downside risk | +1.31 | ||
| Omega ratioGain probability vs. loss probability | 1.34 | 1.18 | +0.16 |
| Calmar ratioReturn relative to maximum drawdown | 4.10 | 1.42 | +2.67 |
| Martin ratioReturn relative to average drawdown | 11.27 | 4.11 | +7.16 |
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Drawdowns
RMBKX vs. BGSAX - Drawdown Comparison
The maximum RMBKX drawdown since its inception was -55.45%, smaller than the maximum BGSAX drawdown of -73.75%. Use the drawdown chart below to compare losses from any high point for RMBKX and BGSAX.
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Drawdown Indicators
| RMBKX | BGSAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.45% | -73.75% | +18.30% |
Max Drawdown (1Y)Largest decline over 1 year | -9.48% | -20.84% | +11.36% |
Max Drawdown (3Y)Largest decline over 3 years | -24.98% | -27.75% | +2.77% |
Max Drawdown (5Y)Largest decline over 5 years | -44.33% | -49.22% | +4.89% |
Max Drawdown (10Y)Largest decline over 10 years | -55.45% | -49.22% | -6.23% |
Current DrawdownCurrent decline from peak | -1.91% | -15.21% | +13.30% |
Average DrawdownAverage peak-to-trough decline | -10.97% | -26.26% | +15.29% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.45% | 7.19% | -3.74% |
Volatility
RMBKX vs. BGSAX - Volatility Comparison
The current volatility for RMB Mendon Financial Services Fund (RMBKX) is 5.72%, while BlackRock Technology Opportunities Fund Investor A (BGSAX) has a volatility of 14.54%. This indicates that RMBKX 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
| RMBKX | BGSAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.72% | 14.54% | -8.82% |
Volatility (6M)Calculated over the trailing 6-month period | 13.29% | 28.48% | -15.19% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.41% | 32.23% | -11.82% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.66% | 29.22% | -4.56% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.18% | 26.62% | +0.56% |
RMBKX vs. BGSAX - Expense Ratio Comparison
RMBKX has a 1.27% expense ratio, which is higher than BGSAX's 1.14% expense ratio.
Dividends
RMBKX vs. BGSAX - Dividend Comparison
RMBKX's dividend yield for the trailing twelve months is around 5.18%, less than BGSAX's 17.42% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
BGSAX BlackRock Technology Opportunities Fund Investor A | 17.42% | 13.55% | 8.68% | 0.00% | 0.00% | 7.66% | 4.86% | 1.50% | 1.24% | 8.01% | 1.17% |
RMBKX RMB Mendon Financial Services Fund | 5.18% | 6.22% | 1.90% | 1.29% | 17.29% | 1.35% | 0.00% | 0.85% | 5.39% | 6.63% | 1.50% |
Frequently Asked Questions
RMBKX and BGSAX have a correlation of 0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BGSAX has higher volatility (14.54%) compared to RMBKX (5.72%). In terms of maximum drawdown, RMBKX dropped -55.45% vs BGSAX's -73.75%.
RMBKX currently has the higher Sharpe Ratio (1.91 vs 0.92), 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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