FSLBX vs. RMBKX

Last updated Jul 15, 2026

FSLBX (Fidelity Select Brokerage & Invmt Mgmt Portfolio) and RMBKX (RMB Mendon Financial Services Fund) are both Financials Equities funds. Over the past 10 years, FSLBX returned 14.79%/yr vs 11.16%/yr for RMBKX. A 0.70 correlation means they provide meaningful diversification when combined. FSLBX charges 0.75%/yr vs 1.27%/yr for RMBKX.

Performance

FSLBX vs. RMBKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Select Brokerage & Invmt Mgmt Portfolio (FSLBX) and RMB Mendon Financial Services Fund (RMBKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSLBX achieves a -9.05% return, which is significantly lower than RMBKX's 18.71% return. Over the past 10 years, FSLBX has outperformed RMBKX with an annualized return of 14.79%, while RMBKX has yielded a comparatively lower 11.16% annualized return.

FSLBX

• 1D: 0.03%
• 1M: 2.10%
• 6M: -11.79%
• YTD: -9.05%
• 1Y: -12.45%
• 3Y*: 15.23%
• 5Y*: 9.19%
• 10Y*: 14.79%

RMBKX

• 1D: 0.35%
• 1M: 3.29%
• 6M: 18.04%
• YTD: 18.71%
• 1Y: 32.08%
• 3Y*: 24.49%
• 5Y*: 9.70%
• 10Y*: 11.16%

*Multi-year figures are annualized to reflect compound growth (CAGR)

FSLBX vs. RMBKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSLBX Fidelity Select Brokerage & Invmt Mgmt Portfolio	-9.05%	5.78%	35.74%	27.77%	-17.54%	40.61%	22.66%	31.60%	-15.37%	27.74%
RMBKX RMB Mendon Financial Services Fund	18.71%	12.84%	17.07%	4.56%	-19.18%	56.40%	-5.73%	22.82%	-17.13%	12.17%

Correlation

The correlation between FSLBX and RMBKX is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.60
Correlation (5Y) Calculated over the trailing 5-year period	0.67
Correlation (10Y) Calculated over the trailing 10-year period	0.69
Correlation (All Time) Calculated using the full available price history since Aug 3, 2012	0.70

Over the past year, the correlation between FSLBX and RMBKX has dropped to 0.49 - well below their long-term average of 0.70, suggesting their price drivers have been diverging.

Return for Risk

FSLBX vs. RMBKX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

FSLBX

FSLBX Risk / Return Rank: 1
FSLBX Sharpe Ratio Rank: 1
FSLBX Sortino Ratio Rank: 1
FSLBX Omega Ratio Rank: 1
FSLBX Calmar Ratio Rank: 1
FSLBX Martin Ratio Rank: 1

RMBKX

RMBKX Risk / Return Rank: 66
RMBKX Sharpe Ratio Rank: 59
RMBKX Sortino Ratio Rank: 59
RMBKX Omega Ratio Rank: 55
RMBKX Calmar Ratio Rank: 90
RMBKX Martin Ratio Rank: 65

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

FSLBX vs. RMBKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Select Brokerage & Invmt Mgmt Portfolio (FSLBX) and RMB Mendon Financial Services Fund (RMBKX). 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.

	FSLBX	RMBKX	Difference
Sharpe ratio: Return per unit of total volatility	-0.53	1.70	-2.23
Sortino ratio: Return per unit of downside risk	-0.61	2.39	-3.00
Omega ratio: Gain probability vs. loss probability	0.93	1.30	-0.37
Calmar ratio: Return relative to maximum drawdown	-0.48	3.66	-4.14
Martin ratio: Return relative to average drawdown	-0.90	9.70	-10.60

FSLBX vs. RMBKX - Sharpe Ratio Comparison

The current FSLBX Sharpe Ratio is -0.53, which is lower than the RMBKX Sharpe Ratio of 1.70. The chart below compares the historical Sharpe Ratios of FSLBX and RMBKX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

FSLBX vs. RMBKX - Drawdown Comparison

The maximum FSLBX drawdown since its inception was -68.20%, which is greater than RMBKX's maximum drawdown of -55.45%. Use the drawdown chart below to compare losses from any high point for FSLBX and RMBKX.

Drawdown Indicators

	FSLBX	RMBKX	Difference
Max Drawdown Largest peak-to-trough decline	-68.20%	-55.45%	-12.75%
Max Drawdown (1Y) Largest decline over 1 year	-24.67%	-9.48%	-15.19%
Max Drawdown (3Y) Largest decline over 3 years	-26.06%	-24.98%	-1.08%
Max Drawdown (5Y) Largest decline over 5 years	-30.87%	-44.33%	+13.46%
Max Drawdown (10Y) Largest decline over 10 years	-40.56%	-55.45%	+14.89%
Current Drawdown Current decline from peak	-15.11%	-3.06%	-12.05%
Average Drawdown Average peak-to-trough decline	-14.88%	-11.00%	-3.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.02%	3.57%	+9.45%

Volatility

FSLBX vs. RMBKX - Volatility Comparison

Fidelity Select Brokerage & Invmt Mgmt Portfolio (FSLBX) has a higher volatility of 6.72% compared to RMB Mendon Financial Services Fund (RMBKX) at 5.23%. This indicates that FSLBX's price experiences larger fluctuations and is considered to be riskier than RMBKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSLBX	RMBKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.72%	5.23%	+1.49%
Volatility (6M) Calculated over the trailing 6-month period	17.54%	14.00%	+3.54%
Volatility (1Y) Calculated over the trailing 1-year period	22.20%	20.52%	+1.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.06%	24.73%	-1.67%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.50%	27.16%	-3.66%

FSLBX vs. RMBKX - Expense Ratio Comparison

FSLBX has a 0.75% expense ratio, which is lower than RMBKX's 1.27% expense ratio.

Dividends

FSLBX vs. RMBKX - Dividend Comparison

FSLBX's dividend yield for the trailing twelve months is around 2.15%, less than RMBKX's 5.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FSLBX Fidelity Select Brokerage & Invmt Mgmt Portfolio	2.15%	0.67%	0.69%	1.22%	2.09%	1.39%	3.08%	4.25%	8.94%	5.46%	1.25%	6.37%
RMBKX RMB Mendon Financial Services Fund	5.24%	6.22%	1.90%	1.29%	17.29%	1.35%	0.00%	0.85%	5.39%	6.63%	1.50%	0.00%

Frequently Asked Questions

Can I hold both FSLBX and RMBKX in my portfolio?

FSLBX and RMBKX have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSLBX or RMBKX?

FSLBX has higher volatility (6.72%) compared to RMBKX (5.23%). In terms of maximum drawdown, FSLBX dropped -68.20% vs RMBKX's -55.45%.

Which has better risk-adjusted returns?

RMBKX currently has the higher Sharpe Ratio (1.70 vs -0.53), 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.