PTUIX vs. MCBDX

Last updated Jun 4, 2026

PTUIX (PIMCO Total Return Fund IV) and MCBDX (MassMutual Core Bond Fund) are both Intermediate Core Bond funds. Over the past 10 years, PTUIX returned 2.02%/yr vs 5.40%/yr for MCBDX. Their correlation of 0.89 suggests significant overlap in exposure. PTUIX charges 0.50%/yr vs 0.52%/yr for MCBDX.

Performance

PTUIX vs. MCBDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PIMCO Total Return Fund IV (PTUIX) and MassMutual Core Bond Fund (MCBDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PTUIX achieves a 0.48% return, which is significantly lower than MCBDX's 0.85% return. Over the past 10 years, PTUIX has underperformed MCBDX with an annualized return of 2.02%, while MCBDX has yielded a comparatively higher 5.40% annualized return.

PTUIX

• 1D: 0.10%
• 1M: 0.79%
• YTD: 0.48%
• 6M: 0.64%
• 1Y: 6.36%
• 3Y*: 4.81%
• 5Y*: 0.42%
• 10Y*: 2.02%

MCBDX

• 1D: 0.00%
• 1M: 0.68%
• YTD: 0.85%
• 6M: 0.92%
• 1Y: 6.76%
• 3Y*: 4.90%
• 5Y*: 6.76%
• 10Y*: 5.40%

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

PTUIX vs. MCBDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PTUIX PIMCO Total Return Fund IV	0.48%	8.16%	2.19%	5.90%	-13.84%	-1.12%	7.33%	9.67%	-0.76%	4.57%
MCBDX MassMutual Core Bond Fund	0.85%	8.03%	1.13%	6.64%	-15.29%	38.26%	8.42%	9.62%	-0.48%	4.60%

Correlation

The correlation between PTUIX and MCBDX is 0.95, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since May 31, 2011	0.89

The correlation between PTUIX and MCBDX has been stable across timeframes, ranging from 0.89 to 0.95 - a consistent structural relationship.

Return for Risk

PTUIX vs. MCBDX — Risk / Return Rank

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

PTUIX

PTUIX Risk / Return Rank: 27
PTUIX Sharpe Ratio Rank: 28
PTUIX Sortino Ratio Rank: 29
PTUIX Omega Ratio Rank: 28
PTUIX Calmar Ratio Rank: 26
PTUIX Martin Ratio Rank: 23

MCBDX

MCBDX Risk / Return Rank: 39
MCBDX Sharpe Ratio Rank: 38
MCBDX Sortino Ratio Rank: 42
MCBDX Omega Ratio Rank: 38
MCBDX Calmar Ratio Rank: 40
MCBDX Martin Ratio Rank: 37

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.

PTUIX vs. MCBDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PIMCO Total Return Fund IV (PTUIX) and MassMutual Core Bond Fund (MCBDX). 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.

	PTUIX	MCBDX	Difference
Sharpe ratio: Return per unit of total volatility	1.53	1.79	-0.26
Sortino ratio: Return per unit of downside risk	2.24	2.73	-0.49
Omega ratio: Gain probability vs. loss probability	1.28	1.33	-0.05
Calmar ratio: Return relative to maximum drawdown	1.90	2.41	-0.51
Martin ratio: Return relative to average drawdown	5.83	8.08	-2.25
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PTUIX vs. MCBDX - Sharpe Ratio Comparison

The current PTUIX Sharpe Ratio is 1.53, which is comparable to the MCBDX Sharpe Ratio of 1.79. The chart below compares the historical Sharpe Ratios of PTUIX and MCBDX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	PTUIX	MCBDX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.53	1.79	-0.26
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.07	0.34	-0.27
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.39	0.38	+0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.58	0.53	+0.05

Drawdowns

PTUIX vs. MCBDX - Drawdown Comparison

The maximum PTUIX drawdown since its inception was -19.19%, smaller than the maximum MCBDX drawdown of -22.01%. Use the drawdown chart below to compare losses from any high point for PTUIX and MCBDX.

Drawdown Indicators

	PTUIX	MCBDX	Difference
Max Drawdown Largest peak-to-trough decline	-19.19%	-22.01%	+2.82%
Max Drawdown (1Y) Largest decline over 1 year	-3.38%	-2.87%	-0.51%
Max Drawdown (3Y) Largest decline over 3 years	-5.99%	-5.34%	-0.65%
Max Drawdown (5Y) Largest decline over 5 years	-19.19%	-22.01%	+2.82%
Max Drawdown (10Y) Largest decline over 10 years	-19.19%	-22.01%	+2.82%
Current Drawdown Current decline from peak	-1.37%	-4.15%	+2.78%
Average Drawdown Average peak-to-trough decline	-3.54%	-3.53%	-0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.09%	0.85%	+0.24%

Volatility

PTUIX vs. MCBDX - Volatility Comparison

PIMCO Total Return Fund IV (PTUIX) has a higher volatility of 1.59% compared to MassMutual Core Bond Fund (MCBDX) at 1.42%. This indicates that PTUIX's price experiences larger fluctuations and is considered to be riskier than MCBDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PTUIX	MCBDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.59%	1.42%	+0.17%
Volatility (6M) Calculated over the trailing 6-month period	3.21%	2.80%	+0.41%
Volatility (1Y) Calculated over the trailing 1-year period	4.20%	3.88%	+0.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.06%	20.10%	-14.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.15%	14.45%	-9.30%

PTUIX vs. MCBDX - Expense Ratio Comparison

PTUIX has a 0.50% expense ratio, which is lower than MCBDX's 0.52% expense ratio.

Dividends

PTUIX vs. MCBDX - Dividend Comparison

PTUIX's dividend yield for the trailing twelve months is around 4.17%, less than MCBDX's 4.48% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MCBDX MassMutual Core Bond Fund	4.48%	4.50%	1.93%	4.62%	3.83%	31.12%	5.98%	3.35%	3.32%	2.96%	3.29%	1.43%
PTUIX PIMCO Total Return Fund IV	4.17%	4.09%	4.21%	2.78%	2.74%	1.84%	2.24%	2.78%	2.53%	1.75%	2.96%	3.60%

Frequently Asked Questions

Can I hold both PTUIX and MCBDX in my portfolio?

With a correlation of 0.95, PTUIX and MCBDX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, PTUIX or MCBDX?

PTUIX has higher volatility (1.59%) compared to MCBDX (1.42%). In terms of maximum drawdown, PTUIX dropped -19.19% vs MCBDX's -22.01%.

Which has better risk-adjusted returns?

MCBDX currently has the higher Sharpe Ratio (1.79 vs 1.53), 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.