RYVVX vs. BUFBX

Last updated Jul 17, 2026

RYVVX (Rydex S&P 500 Pure Value Fund) and BUFBX (Buffalo Flexible Income Fund) are both Large Cap Value Equities funds. Over the past 10 years, RYVVX returned 8.44%/yr vs 9.28%/yr for BUFBX. Their correlation of 0.81 suggests significant overlap in exposure. RYVVX charges 2.26%/yr vs 1.01%/yr for BUFBX.

Performance

RYVVX vs. BUFBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex S&P 500 Pure Value Fund (RYVVX) and Buffalo Flexible Income Fund (BUFBX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RYVVX achieves a 13.22% return, which is significantly higher than BUFBX's 9.72% return. Over the past 10 years, RYVVX has underperformed BUFBX with an annualized return of 8.44%, while BUFBX has yielded a comparatively higher 9.28% annualized return.

RYVVX

• 1D: -0.22%
• 1M: 1.88%
• 6M: 7.84%
• YTD: 13.22%
• 1Y: 26.33%
• 3Y*: 14.53%
• 5Y*: 9.92%
• 10Y*: 8.44%

BUFBX

• 1D: -0.18%
• 1M: -0.81%
• 6M: 7.82%
• YTD: 9.72%
• 1Y: 14.91%
• 3Y*: 12.25%
• 5Y*: 10.78%
• 10Y*: 9.28%

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

RYVVX vs. BUFBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYVVX Rydex S&P 500 Pure Value Fund	13.22%	15.67%	9.88%	5.72%	-3.31%	31.12%	-10.98%	22.34%	-13.91%	15.07%
BUFBX Buffalo Flexible Income Fund	9.72%	10.37%	10.26%	7.42%	3.97%	29.97%	-2.27%	18.76%	-7.01%	13.20%

Correlation

The correlation between RYVVX and BUFBX is 0.65, 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	0.65
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.77
Correlation (10Y) Calculated over the trailing 10-year period	0.79
Correlation (All Time) Calculated using the full available price history since Jan 3, 2005	0.81

The correlation between RYVVX and BUFBX shifts across timeframes, from 0.65 (1 year) to 0.81 (all time), reflecting how their relationship changes across market environments.

Return for Risk

RYVVX vs. BUFBX — Risk / Return Rank

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

RYVVX

RYVVX Risk / Return Rank: 78
RYVVX Sharpe Ratio Rank: 79
RYVVX Sortino Ratio Rank: 79
RYVVX Omega Ratio Rank: 72
RYVVX Calmar Ratio Rank: 85
RYVVX Martin Ratio Rank: 76

BUFBX

BUFBX Risk / Return Rank: 60
BUFBX Sharpe Ratio Rank: 48
BUFBX Sortino Ratio Rank: 47
BUFBX Omega Ratio Rank: 44
BUFBX Calmar Ratio Rank: 87
BUFBX Martin Ratio Rank: 72

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.

RYVVX vs. BUFBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex S&P 500 Pure Value Fund (RYVVX) and Buffalo Flexible Income Fund (BUFBX). 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.

	RYVVX	BUFBX	Difference
Sharpe ratio: Return per unit of total volatility	2.12	1.57	+0.55
Sortino ratio: Return per unit of downside risk	3.06	2.22	+0.83
Omega ratio: Gain probability vs. loss probability	1.36	1.28	+0.09
Calmar ratio: Return relative to maximum drawdown	3.33	3.43	-0.09
Martin ratio: Return relative to average drawdown	11.19	10.62	+0.57

RYVVX vs. BUFBX - Sharpe Ratio Comparison

The current RYVVX Sharpe Ratio is 2.12, which is higher than the BUFBX Sharpe Ratio of 1.57. The chart below compares the historical Sharpe Ratios of RYVVX and BUFBX, 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

RYVVX vs. BUFBX - Drawdown Comparison

The maximum RYVVX drawdown since its inception was -82.48%, which is greater than BUFBX's maximum drawdown of -39.78%. Use the drawdown chart below to compare losses from any high point for RYVVX and BUFBX.

Drawdown Indicators

	RYVVX	BUFBX	Difference
Max Drawdown Largest peak-to-trough decline	-82.48%	-39.78%	-42.70%
Max Drawdown (1Y) Largest decline over 1 year	-7.95%	-4.45%	-3.50%
Max Drawdown (3Y) Largest decline over 3 years	-15.85%	-12.85%	-3.00%
Max Drawdown (5Y) Largest decline over 5 years	-23.78%	-14.67%	-9.11%
Max Drawdown (10Y) Largest decline over 10 years	-51.41%	-35.51%	-15.90%
Current Drawdown Current decline from peak	-0.49%	-2.97%	+2.48%
Average Drawdown Average peak-to-trough decline	-16.88%	-4.71%	-12.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.36%	1.43%	+0.93%

Volatility

RYVVX vs. BUFBX - Volatility Comparison

The current volatility for Rydex S&P 500 Pure Value Fund (RYVVX) is 3.34%, while Buffalo Flexible Income Fund (BUFBX) has a volatility of 4.52%. This indicates that RYVVX experiences smaller price fluctuations and is considered to be less risky than BUFBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYVVX	BUFBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.34%	4.52%	-1.18%
Volatility (6M) Calculated over the trailing 6-month period	8.33%	7.73%	+0.60%
Volatility (1Y) Calculated over the trailing 1-year period	12.60%	9.79%	+2.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.66%	13.47%	+4.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.76%	15.60%	+6.16%

RYVVX vs. BUFBX - Expense Ratio Comparison

RYVVX has a 2.26% expense ratio, which is higher than BUFBX's 1.01% expense ratio.

Dividends

RYVVX vs. BUFBX - Dividend Comparison

RYVVX's dividend yield for the trailing twelve months is around 0.22%, less than BUFBX's 8.30% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BUFBX Buffalo Flexible Income Fund	8.30%	9.10%	3.77%	3.48%	4.16%	5.57%	3.33%	2.73%	6.01%	5.49%	2.39%	3.67%
RYVVX Rydex S&P 500 Pure Value Fund	0.22%	0.25%	1.16%	2.24%	2.86%	2.87%	1.13%	1.17%	10.39%	1.30%	1.04%	9.15%

Frequently Asked Questions

Can I hold both RYVVX and BUFBX in my portfolio?

RYVVX and BUFBX have a correlation of 0.65, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RYVVX or BUFBX?

BUFBX has higher volatility (4.52%) compared to RYVVX (3.34%). In terms of maximum drawdown, RYVVX dropped -82.48% vs BUFBX's -39.78%.

Which has better risk-adjusted returns?

RYVVX currently has the higher Sharpe Ratio (2.12 vs 1.57), 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.