IRSAX vs. NBRFX

Last updated Jun 4, 2026

IRSAX (Delaware Ivy Securian Real Estate Securities Fund) and NBRFX (Neuberger Berman Real Estate Fund) are both REIT funds. Over the past 10 years, IRSAX returned 7.55%/yr vs 6.43%/yr for NBRFX. With a 0.98 correlation, they move nearly in lockstep. IRSAX charges 1.20%/yr vs 1.39%/yr for NBRFX.

Performance

IRSAX vs. NBRFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Delaware Ivy Securian Real Estate Securities Fund (IRSAX) and Neuberger Berman Real Estate Fund (NBRFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IRSAX achieves a 11.86% return, which is significantly higher than NBRFX's 11.20% return. Over the past 10 years, IRSAX has outperformed NBRFX with an annualized return of 7.55%, while NBRFX has yielded a comparatively lower 6.43% annualized return.

IRSAX

• 1D: 0.35%
• 1M: -1.11%
• YTD: 11.86%
• 6M: 11.88%
• 1Y: 17.88%
• 3Y*: 16.90%
• 5Y*: 7.27%
• 10Y*: 7.55%

NBRFX

• 1D: 0.20%
• 1M: -1.60%
• YTD: 11.20%
• 6M: 10.13%
• 1Y: 9.22%
• 3Y*: 8.47%
• 5Y*: 2.44%
• 10Y*: 6.43%

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

IRSAX vs. NBRFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IRSAX Delaware Ivy Securian Real Estate Securities Fund	11.86%	7.28%	23.62%	9.53%	-25.47%	43.57%	-3.51%	24.13%	-5.69%	5.29%
NBRFX Neuberger Berman Real Estate Fund	11.20%	-2.14%	5.02%	11.70%	-27.35%	47.87%	-1.34%	31.06%	-5.31%	11.59%

Correlation

The correlation between IRSAX and NBRFX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	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	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since May 3, 2002	0.98

The correlation between IRSAX and NBRFX has been stable across timeframes, ranging from 0.95 to 0.98 - a consistent structural relationship.

Return for Risk

IRSAX vs. NBRFX — Risk / Return Rank

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

IRSAX

IRSAX Risk / Return Rank: 26
IRSAX Sharpe Ratio Rank: 22
IRSAX Sortino Ratio Rank: 19
IRSAX Omega Ratio Rank: 20
IRSAX Calmar Ratio Rank: 33
IRSAX Martin Ratio Rank: 36

NBRFX

NBRFX Risk / Return Rank: 9
NBRFX Sharpe Ratio Rank: 8
NBRFX Sortino Ratio Rank: 8
NBRFX Omega Ratio Rank: 8
NBRFX Calmar Ratio Rank: 12
NBRFX Martin Ratio Rank: 10

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.

IRSAX vs. NBRFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Delaware Ivy Securian Real Estate Securities Fund (IRSAX) and Neuberger Berman Real Estate Fund (NBRFX). 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.

	IRSAX	NBRFX	Difference
Sharpe ratio Return per unit of total volatility	1.34	0.66	+0.67
Sortino ratio Return per unit of downside risk	1.84	0.97	+0.87
Omega ratio Gain probability vs. loss probability	1.23	1.12	+0.11
Calmar ratio Return relative to maximum drawdown	2.15	1.10	+1.04
Martin ratio Return relative to average drawdown	7.99	3.05	+4.94
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IRSAX vs. NBRFX - Sharpe Ratio Comparison

The current IRSAX Sharpe Ratio is 1.34, which is higher than the NBRFX Sharpe Ratio of 0.66. The chart below compares the historical Sharpe Ratios of IRSAX and NBRFX, 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

	IRSAX	NBRFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.34	0.66	+0.67
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.26	0.12	+0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.30	0.32	-0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.31	0.32	-0.01

Drawdowns

IRSAX vs. NBRFX - Drawdown Comparison

The maximum IRSAX drawdown since its inception was -72.03%, roughly equal to the maximum NBRFX drawdown of -70.52%. Use the drawdown chart below to compare losses from any high point for IRSAX and NBRFX.

Drawdown Indicators

	IRSAX	NBRFX	Difference
Max Drawdown Largest peak-to-trough decline	-72.03%	-70.52%	-1.51%
Max Drawdown (1Y) Largest decline over 1 year	-8.04%	-7.84%	-0.20%
Max Drawdown (3Y) Largest decline over 3 years	-16.26%	-18.06%	+1.80%
Max Drawdown (5Y) Largest decline over 5 years	-37.56%	-35.60%	-1.96%
Max Drawdown (10Y) Largest decline over 10 years	-40.71%	-37.56%	-3.15%
Current Drawdown Current decline from peak	-3.39%	-7.27%	+3.88%
Average Drawdown Average peak-to-trough decline	-13.24%	-11.82%	-1.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.16%	2.83%	-0.67%

Volatility

IRSAX vs. NBRFX - Volatility Comparison

Delaware Ivy Securian Real Estate Securities Fund (IRSAX) has a higher volatility of 3.83% compared to Neuberger Berman Real Estate Fund (NBRFX) at 3.64%. This indicates that IRSAX's price experiences larger fluctuations and is considered to be riskier than NBRFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IRSAX	NBRFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.83%	3.64%	+0.19%
Volatility (6M) Calculated over the trailing 6-month period	9.46%	9.51%	-0.05%
Volatility (1Y) Calculated over the trailing 1-year period	12.91%	13.05%	-0.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.57%	19.78%	+8.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.61%	20.35%	+5.26%

IRSAX vs. NBRFX - Expense Ratio Comparison

IRSAX has a 1.20% expense ratio, which is lower than NBRFX's 1.39% expense ratio.

Dividends

IRSAX vs. NBRFX - Dividend Comparison

IRSAX's dividend yield for the trailing twelve months is around 22.17%, more than NBRFX's 1.82% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IRSAX Delaware Ivy Securian Real Estate Securities Fund	22.17%	24.77%	29.95%	9.61%	34.76%	13.03%	1.81%	9.69%	7.51%	12.71%	10.34%	5.88%
NBRFX Neuberger Berman Real Estate Fund	1.82%	2.07%	1.94%	2.11%	12.58%	7.76%	2.03%	4.73%	6.98%	6.43%	14.86%	9.29%

Frequently Asked Questions

Can I hold both IRSAX and NBRFX in my portfolio?

With a correlation of 0.95, IRSAX and NBRFX 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, IRSAX or NBRFX?

IRSAX has higher volatility (3.83%) compared to NBRFX (3.64%). In terms of maximum drawdown, IRSAX dropped -72.03% vs NBRFX's -70.52%.

Which has better risk-adjusted returns?

IRSAX currently has the higher Sharpe Ratio (1.34 vs 0.66), 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.