PDIIX vs. AGG

Last updated Jun 4, 2026

PDIIX (PIMCO Diversified Income Fund) and AGG (iShares Core U.S. Aggregate Bond ETF) are both funds - PDIIX is a Multisector Bonds fund managed by PIMCO, while AGG is a Total Bond Market fund tracking the Bloomberg U.S. Aggregate Bond Index. Over the past 10 years, PDIIX returned 4.34%/yr vs 1.57%/yr for AGG. A 0.53 correlation means they provide meaningful diversification when combined. PDIIX charges 0.75%/yr vs 0.03%/yr for AGG.

Performance

PDIIX vs. AGG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PIMCO Diversified Income Fund (PDIIX) and iShares Core U.S. Aggregate Bond ETF (AGG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PDIIX achieves a 1.54% return, which is significantly higher than AGG's 0.25% return. Over the past 10 years, PDIIX has outperformed AGG with an annualized return of 4.34%, while AGG has yielded a comparatively lower 1.57% annualized return.

PDIIX

• 1D: 0.10%
• 1M: 0.98%
• YTD: 1.54%
• 6M: 1.82%
• 1Y: 8.85%
• 3Y*: 8.69%
• 5Y*: 2.60%
• 10Y*: 4.34%

AGG

• 1D: -0.21%
• 1M: 0.24%
• YTD: 0.25%
• 6M: 0.09%
• 1Y: 5.14%
• 3Y*: 3.95%
• 5Y*: 0.10%
• 10Y*: 1.57%

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

PDIIX vs. AGG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PDIIX PIMCO Diversified Income Fund	1.54%	10.42%	6.35%	10.41%	-14.70%	0.42%	6.43%	13.05%	-0.97%	8.87%
AGG iShares Core U.S. Aggregate Bond ETF	0.25%	7.19%	1.31%	5.65%	-13.02%	-1.77%	7.48%	8.46%	0.09%	3.55%

Correlation

The correlation between PDIIX and AGG is 0.75, 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	0.75
Correlation (3Y) Calculated over the trailing 3-year period	0.78
Correlation (5Y) Calculated over the trailing 5-year period	0.75
Correlation (10Y) Calculated over the trailing 10-year period	0.65
Correlation (All Time) Calculated using the full available price history since Sep 29, 2003	0.53

Over the past year, PDIIX and AGG have become more correlated (0.75) than their long-term average of 0.53, meaning their price movements have been converging.

Return for Risk

PDIIX vs. AGG — Risk / Return Rank

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

PDIIX

PDIIX Risk / Return Rank: 64
PDIIX Sharpe Ratio Rank: 67
PDIIX Sortino Ratio Rank: 79
PDIIX Omega Ratio Rank: 75
PDIIX Calmar Ratio Rank: 46
PDIIX Martin Ratio Rank: 51

AGG

AGG Risk / Return Rank: 36
AGG Sharpe Ratio Rank: 36
AGG Sortino Ratio Rank: 38
AGG Omega Ratio Rank: 35
AGG Calmar Ratio Rank: 37
AGG Martin Ratio Rank: 36

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.

PDIIX vs. AGG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PIMCO Diversified Income Fund (PDIIX) and iShares Core U.S. Aggregate Bond ETF (AGG). 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.

	PDIIX	AGG	Difference
Sharpe ratio Return per unit of total volatility	2.38	1.34	+1.04
Sortino ratio Return per unit of downside risk	3.75	2.00	+1.76
Omega ratio Gain probability vs. loss probability	1.49	1.24	+0.25
Calmar ratio Return relative to maximum drawdown	2.58	1.87	+0.71
Martin ratio Return relative to average drawdown	10.53	5.73	+4.80
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PDIIX vs. AGG - Sharpe Ratio Comparison

The current PDIIX Sharpe Ratio is 2.38, which is higher than the AGG Sharpe Ratio of 1.34. The chart below compares the historical Sharpe Ratios of PDIIX and AGG, 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

	PDIIX	AGG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.38	1.34	+1.04
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.52	0.02	+0.51
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.89	0.29	+0.60
Sharpe Ratio (All Time) Calculated using the full available price history	1.22	0.59	+0.63

Drawdowns

PDIIX vs. AGG - Drawdown Comparison

The maximum PDIIX drawdown since its inception was -21.96%, which is greater than AGG's maximum drawdown of -18.43%. Use the drawdown chart below to compare losses from any high point for PDIIX and AGG.

Drawdown Indicators

	PDIIX	AGG	Difference
Max Drawdown Largest peak-to-trough decline	-21.96%	-18.43%	-3.53%
Max Drawdown (1Y) Largest decline over 1 year	-3.55%	-2.76%	-0.79%
Max Drawdown (3Y) Largest decline over 3 years	-4.27%	-6.11%	+1.84%
Max Drawdown (5Y) Largest decline over 5 years	-20.50%	-17.82%	-2.68%
Max Drawdown (10Y) Largest decline over 10 years	-20.50%	-18.43%	-2.07%
Current Drawdown Current decline from peak	-0.06%	-2.14%	+2.08%
Average Drawdown Average peak-to-trough decline	-2.82%	-2.71%	-0.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.87%	0.90%	-0.03%

Volatility

PDIIX vs. AGG - Volatility Comparison

PIMCO Diversified Income Fund (PDIIX) has a higher volatility of 1.49% compared to iShares Core U.S. Aggregate Bond ETF (AGG) at 1.30%. This indicates that PDIIX's price experiences larger fluctuations and is considered to be riskier than AGG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PDIIX	AGG	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.49%	1.30%	+0.19%
Volatility (6M) Calculated over the trailing 6-month period	3.17%	2.74%	+0.43%
Volatility (1Y) Calculated over the trailing 1-year period	3.85%	3.85%	0.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.00%	6.09%	-1.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.89%	5.40%	-0.51%

PDIIX vs. AGG - Expense Ratio Comparison

PDIIX has a 0.75% expense ratio, which is higher than AGG's 0.03% expense ratio.

Dividends

PDIIX vs. AGG - Dividend Comparison

PDIIX's dividend yield for the trailing twelve months is around 5.52%, more than AGG's 3.99% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AGG iShares Core U.S. Aggregate Bond ETF	3.99%	3.89%	3.74%	3.13%	2.39%	1.77%	2.14%	2.70%	2.72%	2.32%	2.39%	2.45%
PDIIX PIMCO Diversified Income Fund	5.52%	5.42%	5.18%	4.66%	3.91%	3.65%	3.68%	5.04%	4.46%	4.84%	4.94%	7.68%

Frequently Asked Questions

Can I hold both PDIIX and AGG in my portfolio?

PDIIX and AGG have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PDIIX or AGG?

PDIIX has higher volatility (1.49%) compared to AGG (1.30%). In terms of maximum drawdown, PDIIX dropped -21.96% vs AGG's -18.43%.

Which has better risk-adjusted returns?

PDIIX currently has the higher Sharpe Ratio (2.38 vs 1.34), 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.