VIPSX vs. AAAAX

Last updated Aug 6, 2026

VIPSX (Vanguard Inflation-Protected Securities Fund Investor Shares) and AAAAX (DWS RREEF Real Assets Fund - Class A) are both mutual funds - VIPSX is a Inflation-Protected Bonds fund tracking the Bloomberg U.S. Treasury Inflation Protected Securities Index, while AAAAX is a Infrastructure Equities fund actively managed by DWS. VIPSX is passively managed, while AAAAX is actively managed. Over the past 10 years, VIPSX returned 2.30%/yr vs 6.87%/yr for AAAAX. Their 0.10 correlation means their historical movements had little consistent relationship. VIPSX charges 0.20%/yr vs 1.14%/yr for AAAAX.

Performance

VIPSX vs. AAAAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Inflation-Protected Securities Fund Investor Shares (VIPSX) and DWS RREEF Real Assets Fund - Class A (AAAAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VIPSX achieves a 0.64% return, which is significantly lower than AAAAX's 10.21% return. Over the past 10 years, VIPSX has underperformed AAAAX with an annualized return of 2.30%, while AAAAX has yielded a comparatively higher 6.87% annualized return.

VIPSX

• 1D: 0.26%
• 1M: -0.52%
• 6M: 0.38%
• YTD: 0.64%
• 1Y: 1.73%
• 3Y*: 3.76%
• 5Y*: 0.29%
• 10Y*: 2.30%
• ALL TIME*: 4.28%

AAAAX

• 1D: 0.07%
• 1M: 1.52%
• 6M: 2.91%
• YTD: 10.21%
• 1Y: 15.95%
• 3Y*: 10.70%
• 5Y*: 4.89%
• 10Y*: 6.87%
• ALL TIME*: 4.49%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
AAAAX DWS RREEF Real Assets Fund - Class A	$0.00	$0.00	$0.00
VIPSX Vanguard Inflation-Protected Securities Fund Investor Shares	$0.00	$0.00	$0.00

VIPSX vs. AAAAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VIPSX Vanguard Inflation-Protected Securities Fund Investor Shares	0.64%	6.77%	1.74%	3.73%	-12.04%	5.57%	10.90%	8.06%	-1.48%	2.81%
AAAAX DWS RREEF Real Assets Fund - Class A	10.21%	12.82%	5.24%	2.30%	-9.91%	23.45%	3.71%	21.42%	-5.36%	14.67%

Correlation

The correlation between VIPSX and AAAAX is 0.21, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.21
Correlation (3Y) Balances recent behavior with more history.	0.36
Correlation (5Y) Shows whether the relationship held over a longer period.	0.34
Correlation (10Y) Provides a long-term view across more market conditions.	0.24
Correlation (All Time) Calculated using the full available price history since Jul 31, 2007	0.10

The correlation between VIPSX and AAAAX shifts across timeframes, from 0.10 (all time) to 0.36 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

VIPSX vs. AAAAX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

VIPSX

VIPSX Risk / Return Rank: 13
VIPSX Sharpe Ratio Rank: 12
VIPSX Sortino Ratio Rank: 11
VIPSX Omega Ratio Rank: 10
VIPSX Calmar Ratio Rank: 16
VIPSX Martin Ratio Rank: 15

AAAAX

AAAAX Risk / Return Rank: 58
AAAAX Sharpe Ratio Rank: 60
AAAAX Sortino Ratio Rank: 54
AAAAX Omega Ratio Rank: 56
AAAAX Calmar Ratio Rank: 75
AAAAX Martin Ratio Rank: 46

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

VIPSX vs. AAAAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Inflation-Protected Securities Fund Investor Shares (VIPSX) and DWS RREEF Real Assets Fund - Class A (AAAAX). 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.

	VIPSX	AAAAX	Difference
Sharpe ratio: Return per unit of total volatility	0.53	1.74	-1.21
Sortino ratio: Return per unit of downside risk	0.78	2.38	-1.59
Omega ratio: Gain probability vs. loss probability	1.09	1.32	-0.22
Calmar ratio: Return relative to maximum drawdown	0.86	2.76	-1.90
Martin ratio: Return relative to average drawdown	2.33	7.47	-5.14

VIPSX vs. AAAAX - Sharpe Ratio Comparison

The current VIPSX Sharpe Ratio is 0.53, which is lower than the AAAAX Sharpe Ratio of 1.74. The chart below compares the historical Sharpe Ratios of VIPSX and AAAAX, 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

VIPSX vs. AAAAX - Drawdown Comparison

The maximum VIPSX drawdown since its inception was -15.13%, smaller than the maximum AAAAX drawdown of -40.47%. Use the drawdown chart below to compare losses from any high point for VIPSX and AAAAX.

Drawdown Indicators

	VIPSX	AAAAX	Difference
Max Drawdown Largest peak-to-trough decline	-15.13%	-40.47%	+25.34%
Max Drawdown (1Y) Largest decline over 1 year	-2.02%	-5.82%	+3.80%
Max Drawdown (3Y) Largest decline over 3 years	-3.83%	-10.11%	+6.28%
Max Drawdown (5Y) Largest decline over 5 years	-14.55%	-22.62%	+8.07%
Max Drawdown (10Y) Largest decline over 10 years	-14.55%	-29.41%	+14.86%
Current Drawdown Current decline from peak	-1.05%	-3.14%	+2.09%
Average Drawdown Average peak-to-trough decline	-3.22%	-6.82%	+3.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.75%	2.15%	-1.40%

Volatility

VIPSX vs. AAAAX - Volatility Comparison

The current volatility for Vanguard Inflation-Protected Securities Fund Investor Shares (VIPSX) is 0.71%, while DWS RREEF Real Assets Fund - Class A (AAAAX) has a volatility of 2.09%. This indicates that VIPSX experiences smaller price fluctuations and is considered to be less risky than AAAAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VIPSX	AAAAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.71%	2.09%	-1.38%
Volatility (6M) Calculated over the trailing 6-month period	2.50%	6.91%	-4.41%
Volatility (1Y) Calculated over the trailing 1-year period	3.27%	9.27%	-6.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.97%	12.05%	-6.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.32%	12.68%	-7.36%

VIPSX vs. AAAAX - Expense Ratio Comparison

VIPSX has a 0.20% expense ratio, which is lower than AAAAX's 1.14% expense ratio.

Dividends

VIPSX vs. AAAAX - Dividend Comparison

VIPSX's dividend yield for the trailing twelve months is around 4.97%, less than AAAAX's 6.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AAAAX DWS RREEF Real Assets Fund - Class A	6.00%	3.54%	2.45%	2.08%	4.17%	2.31%	1.33%	1.81%	1.61%	1.52%	1.47%	2.15%
VIPSX Vanguard Inflation-Protected Securities Fund Investor Shares	4.97%	4.64%	4.07%	4.20%	8.34%	5.03%	1.28%	2.22%	3.03%	2.32%	3.38%	0.77%

Frequently Asked Questions

Can I hold both VIPSX and AAAAX in my portfolio?

VIPSX and AAAAX have a correlation of 0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VIPSX or AAAAX?

AAAAX has higher volatility (2.09%) compared to VIPSX (0.71%). In terms of maximum drawdown, VIPSX dropped -15.13% vs AAAAX's -40.47%.

Which has better risk-adjusted returns?

AAAAX currently has the higher Sharpe Ratio (1.74 vs 0.53), 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.