RYFIX vs. RMBKX

Last updated Jun 23, 2026

RYFIX (Rydex Financial Services Fund) and RMBKX (RMB Mendon Financial Services Fund) are both Financials Equities funds from BlackRock. Over the past 10 years, RYFIX returned 10.29%/yr vs 11.00%/yr for RMBKX. A 0.78 correlation means they provide meaningful diversification when combined. RYFIX charges 1.36%/yr vs 1.27%/yr for RMBKX.

Performance

RYFIX vs. RMBKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex Financial Services Fund (RYFIX) 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, RYFIX achieves a 0.06% return, which is significantly lower than RMBKX's 12.74% return. Over the past 10 years, RYFIX has underperformed RMBKX with an annualized return of 10.29%, while RMBKX has yielded a comparatively higher 11.00% annualized return.

RYFIX

• 1D: -0.47%
• 1M: 2.15%
• YTD: 0.06%
• 6M: -1.15%
• 1Y: 7.11%
• 3Y*: 16.12%
• 5Y*: 7.76%
• 10Y*: 10.29%

RMBKX

• 1D: 0.49%
• 1M: 4.32%
• YTD: 12.74%
• 6M: 10.66%
• 1Y: 38.99%
• 3Y*: 21.84%
• 5Y*: 8.61%
• 10Y*: 11.00%

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

RYFIX vs. RMBKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYFIX Rydex Financial Services Fund	0.06%	11.21%	22.86%	14.54%	-18.03%	35.83%	0.27%	28.32%	-12.05%	15.74%
RMBKX RMB Mendon Financial Services Fund	12.74%	12.84%	17.07%	4.56%	-19.18%	56.40%	-5.73%	22.82%	-17.13%	12.17%

Correlation

The correlation between RYFIX and RMBKX is 0.73, 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	0.73
Correlation (3Y) Calculated over the trailing 3-year period	0.76
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.80
Correlation (All Time) Calculated using the full available price history since Aug 3, 2012	0.78

The correlation between RYFIX and RMBKX has been stable across timeframes, ranging from 0.73 to 0.80 - a consistent structural relationship.

Return for Risk

RYFIX vs. RMBKX — Risk / Return Rank

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

RYFIX

RYFIX Risk / Return Rank: 7
RYFIX Sharpe Ratio Rank: 7
RYFIX Sortino Ratio Rank: 7
RYFIX Omega Ratio Rank: 7
RYFIX Calmar Ratio Rank: 6
RYFIX Martin Ratio Rank: 7

RMBKX

RMBKX Risk / Return Rank: 58
RMBKX Sharpe Ratio Rank: 50
RMBKX Sortino Ratio Rank: 47
RMBKX Omega Ratio Rank: 46
RMBKX Calmar Ratio Rank: 89
RMBKX Martin Ratio Rank: 59

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.

RYFIX vs. RMBKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Financial Services Fund (RYFIX) 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.

	RYFIX	RMBKX	Difference
Sharpe ratio: Return per unit of total volatility	0.52	1.91	-1.39
Sortino ratio: Return per unit of downside risk	0.81	2.68	-1.87
Omega ratio: Gain probability vs. loss probability	1.10	1.34	-0.24
Calmar ratio: Return relative to maximum drawdown	0.55	4.16	-3.61
Martin ratio: Return relative to average drawdown	1.60	11.11	-9.51

RYFIX vs. RMBKX - Sharpe Ratio Comparison

The current RYFIX Sharpe Ratio is 0.52, which is lower than the RMBKX Sharpe Ratio of 1.91. The chart below compares the historical Sharpe Ratios of RYFIX 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

RYFIX vs. RMBKX - Drawdown Comparison

The maximum RYFIX drawdown since its inception was -77.63%, which is greater than RMBKX's maximum drawdown of -55.45%. Use the drawdown chart below to compare losses from any high point for RYFIX and RMBKX.

Drawdown Indicators

	RYFIX	RMBKX	Difference
Max Drawdown Largest peak-to-trough decline	-77.63%	-55.45%	-22.18%
Max Drawdown (1Y) Largest decline over 1 year	-13.52%	-9.48%	-4.04%
Max Drawdown (3Y) Largest decline over 3 years	-18.14%	-24.98%	+6.84%
Max Drawdown (5Y) Largest decline over 5 years	-27.08%	-44.33%	+17.25%
Max Drawdown (10Y) Largest decline over 10 years	-44.01%	-55.45%	+11.44%
Current Drawdown Current decline from peak	-2.95%	-1.90%	-1.05%
Average Drawdown Average peak-to-trough decline	-18.37%	-11.04%	-7.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.60%	3.54%	+1.06%

Volatility

RYFIX vs. RMBKX - Volatility Comparison

The current volatility for Rydex Financial Services Fund (RYFIX) is 4.35%, while RMB Mendon Financial Services Fund (RMBKX) has a volatility of 5.35%. This indicates that RYFIX experiences smaller price fluctuations and is considered to be less risky than RMBKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYFIX	RMBKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.35%	5.35%	-1.00%
Volatility (6M) Calculated over the trailing 6-month period	10.89%	13.74%	-2.85%
Volatility (1Y) Calculated over the trailing 1-year period	14.21%	20.63%	-6.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.53%	24.82%	-6.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.00%	27.17%	-6.17%

RYFIX vs. RMBKX - Expense Ratio Comparison

RYFIX has a 1.36% expense ratio, which is higher than RMBKX's 1.27% expense ratio.

Dividends

RYFIX vs. RMBKX - Dividend Comparison

RYFIX's dividend yield for the trailing twelve months is around 1.21%, less than RMBKX's 5.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RMBKX RMB Mendon Financial Services Fund	5.52%	6.22%	1.90%	1.29%	17.29%	1.35%	0.00%	0.85%	5.39%	6.63%	1.50%	0.00%
RYFIX Rydex Financial Services Fund	1.21%	1.21%	0.76%	0.00%	25.45%	0.83%	0.00%	0.41%	5.14%	0.51%	0.71%	1.65%

Frequently Asked Questions

Can I hold both RYFIX and RMBKX in my portfolio?

RYFIX and RMBKX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RYFIX or RMBKX?

RMBKX has higher volatility (5.35%) compared to RYFIX (4.35%). In terms of maximum drawdown, RYFIX dropped -77.63% vs RMBKX's -55.45%.

Which has better risk-adjusted returns?

RMBKX currently has the higher Sharpe Ratio (1.91 vs 0.52), 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.