BUFHX vs. PDBZX

Last updated Jun 23, 2026

BUFHX (Buffalo High Yield Fund) and PDBZX (PGIM Total Return Bond Fund Class Z) are both mutual funds - BUFHX is a High Yield Bonds fund managed by Buffalo, while PDBZX is a Intermediate Core-Plus Bond fund managed by PGIM. Over the past 10 years, BUFHX returned 5.39%/yr vs 2.84%/yr for PDBZX. At a 0.10 correlation, their price movements are largely independent. BUFHX charges 1.02%/yr vs 0.49%/yr for PDBZX.

Performance

BUFHX vs. PDBZX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Buffalo High Yield Fund (BUFHX) and PGIM Total Return Bond Fund Class Z (PDBZX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BUFHX achieves a 1.99% return, which is significantly higher than PDBZX's 0.72% return. Over the past 10 years, BUFHX has outperformed PDBZX with an annualized return of 5.39%, while PDBZX has yielded a comparatively lower 2.84% annualized return.

BUFHX

• 1D: 0.00%
• 1M: 0.67%
• YTD: 1.99%
• 6M: 2.19%
• 1Y: 4.89%
• 3Y*: 8.27%
• 5Y*: 4.85%
• 10Y*: 5.39%

PDBZX

• 1D: 0.25%
• 1M: 1.08%
• YTD: 0.72%
• 6M: 1.18%
• 1Y: 5.61%
• 3Y*: 5.34%
• 5Y*: 0.65%
• 10Y*: 2.84%

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

BUFHX vs. PDBZX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BUFHX Buffalo High Yield Fund	1.99%	5.11%	10.35%	11.68%	-5.53%	5.52%	9.26%	12.33%	-2.26%	5.98%
PDBZX PGIM Total Return Bond Fund Class Z	0.72%	7.70%	2.87%	7.70%	-14.33%	-1.46%	8.01%	14.76%	-0.72%	6.60%

Correlation

The correlation between BUFHX and PDBZX is 0.40, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.40
Correlation (3Y) Calculated over the trailing 3-year period	0.37
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (10Y) Calculated over the trailing 10-year period	0.21
Correlation (All Time) Calculated using the full available price history since Sep 16, 1996	0.10

Over the past year, BUFHX and PDBZX have become more correlated (0.40) than their long-term average of 0.10, meaning their price movements have been converging.

Return for Risk

BUFHX vs. PDBZX — Risk / Return Rank

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

BUFHX

BUFHX Risk / Return Rank: 57
BUFHX Sharpe Ratio Rank: 54
BUFHX Sortino Ratio Rank: 64
BUFHX Omega Ratio Rank: 72
BUFHX Calmar Ratio Rank: 42
BUFHX Martin Ratio Rank: 52

PDBZX

PDBZX Risk / Return Rank: 26
PDBZX Sharpe Ratio Rank: 25
PDBZX Sortino Ratio Rank: 27
PDBZX Omega Ratio Rank: 26
PDBZX Calmar Ratio Rank: 29
PDBZX Martin Ratio Rank: 24

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.

BUFHX vs. PDBZX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Buffalo High Yield Fund (BUFHX) and PGIM Total Return Bond Fund Class Z (PDBZX). 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.

	BUFHX	PDBZX	Difference
Sharpe ratio: Return per unit of total volatility	2.00	1.33	+0.66
Sortino ratio: Return per unit of downside risk	3.05	2.03	+1.01
Omega ratio: Gain probability vs. loss probability	1.43	1.25	+0.18
Calmar ratio: Return relative to maximum drawdown	2.35	1.91	+0.45
Martin ratio: Return relative to average drawdown	9.94	5.40	+4.54

BUFHX vs. PDBZX - Sharpe Ratio Comparison

The current BUFHX Sharpe Ratio is 2.00, which is higher than the PDBZX Sharpe Ratio of 1.33. The chart below compares the historical Sharpe Ratios of BUFHX and PDBZX, 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

BUFHX vs. PDBZX - Drawdown Comparison

The maximum BUFHX drawdown since its inception was -26.01%, which is greater than PDBZX's maximum drawdown of -20.88%. Use the drawdown chart below to compare losses from any high point for BUFHX and PDBZX.

Drawdown Indicators

	BUFHX	PDBZX	Difference
Max Drawdown Largest peak-to-trough decline	-26.01%	-20.88%	-5.13%
Max Drawdown (1Y) Largest decline over 1 year	-2.13%	-3.00%	+0.87%
Max Drawdown (3Y) Largest decline over 3 years	-3.83%	-5.51%	+1.68%
Max Drawdown (5Y) Largest decline over 5 years	-9.98%	-20.81%	+10.83%
Max Drawdown (10Y) Largest decline over 10 years	-18.74%	-20.88%	+2.14%
Current Drawdown Current decline from peak	-0.09%	-1.29%	+1.20%
Average Drawdown Average peak-to-trough decline	-2.02%	-2.30%	+0.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.50%	1.06%	-0.56%

Volatility

BUFHX vs. PDBZX - Volatility Comparison

The current volatility for Buffalo High Yield Fund (BUFHX) is 0.60%, while PGIM Total Return Bond Fund Class Z (PDBZX) has a volatility of 1.94%. This indicates that BUFHX experiences smaller price fluctuations and is considered to be less risky than PDBZX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BUFHX	PDBZX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.60%	1.94%	-1.34%
Volatility (6M) Calculated over the trailing 6-month period	1.97%	3.34%	-1.37%
Volatility (1Y) Calculated over the trailing 1-year period	2.51%	4.29%	-1.78%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.15%	6.05%	-2.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.04%	5.38%	-1.34%

BUFHX vs. PDBZX - Expense Ratio Comparison

BUFHX has a 1.02% expense ratio, which is higher than PDBZX's 0.49% expense ratio.

Dividends

BUFHX vs. PDBZX - Dividend Comparison

BUFHX's dividend yield for the trailing twelve months is around 7.08%, more than PDBZX's 4.57% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BUFHX Buffalo High Yield Fund	7.08%	6.84%	8.03%	6.41%	8.05%	7.24%	4.11%	4.21%	5.17%	4.57%	3.85%	5.51%
PDBZX PGIM Total Return Bond Fund Class Z	4.57%	4.54%	4.79%	4.60%	5.73%	2.73%	2.94%	10.36%	4.01%	2.87%	3.92%	3.33%

Frequently Asked Questions

Can I hold both BUFHX and PDBZX in my portfolio?

BUFHX and PDBZX have a correlation of 0.40, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BUFHX or PDBZX?

PDBZX has higher volatility (1.94%) compared to BUFHX (0.60%). In terms of maximum drawdown, BUFHX dropped -26.01% vs PDBZX's -20.88%.

Which has better risk-adjusted returns?

BUFHX currently has the higher Sharpe Ratio (2.00 vs 1.33), 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.