WCPNX vs. CMBS

Last updated Jun 5, 2026

WCPNX (Weitz Core Plus Income Fund) and CMBS (iShares CMBS ETF) are both funds - WCPNX is a Intermediate Core-Plus Bond fund managed by Weitz, while CMBS is a Mortgage Backed Securities fund tracking the Barclays Capital U.S. CMBS (ERISA Only) Index. Over the past 10 years, WCPNX returned 3.22%/yr vs 2.09%/yr for CMBS. A 0.53 correlation means they provide meaningful diversification when combined. WCPNX charges 0.89%/yr vs 0.25%/yr for CMBS.

Performance

WCPNX vs. CMBS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Weitz Core Plus Income Fund (WCPNX) and iShares CMBS ETF (CMBS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WCPNX achieves a 0.59% return, which is significantly higher than CMBS's 0.49% return. Over the past 10 years, WCPNX has outperformed CMBS with an annualized return of 3.22%, while CMBS has yielded a comparatively lower 2.09% annualized return.

WCPNX

• 1D: -0.21%
• 1M: 0.32%
• YTD: 0.59%
• 6M: 0.89%
• 1Y: 5.31%
• 3Y*: 5.39%
• 5Y*: 1.92%
• 10Y*: 3.22%

CMBS

• 1D: 0.35%
• 1M: 0.28%
• YTD: 0.49%
• 6M: 0.61%
• 1Y: 4.29%
• 3Y*: 5.31%
• 5Y*: 0.86%
• 10Y*: 2.09%

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

WCPNX vs. CMBS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WCPNX Weitz Core Plus Income Fund	0.59%	7.89%	4.10%	7.00%	-9.92%	1.60%	10.18%	7.39%	1.49%	2.83%
CMBS iShares CMBS ETF	0.49%	7.67%	4.27%	5.06%	-11.21%	-1.82%	7.86%	7.94%	0.77%	2.95%

Correlation

The correlation between WCPNX and CMBS is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.54
Correlation (5Y) Calculated over the trailing 5-year period	0.62
Correlation (10Y) Calculated over the trailing 10-year period	0.55
Correlation (All Time) Calculated using the full available price history since Aug 4, 2014	0.53

The correlation between WCPNX and CMBS shifts across timeframes, from 0.34 (1 year) to 0.62 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

WCPNX vs. CMBS — Risk / Return Rank

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

WCPNX

WCPNX Risk / Return Rank: 30
WCPNX Sharpe Ratio Rank: 29
WCPNX Sortino Ratio Rank: 31
WCPNX Omega Ratio Rank: 30
WCPNX Calmar Ratio Rank: 33
WCPNX Martin Ratio Rank: 29

CMBS

CMBS Risk / Return Rank: 34
CMBS Sharpe Ratio Rank: 33
CMBS Sortino Ratio Rank: 34
CMBS Omega Ratio Rank: 31
CMBS Calmar Ratio Rank: 36
CMBS Martin Ratio Rank: 33

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.

WCPNX vs. CMBS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Weitz Core Plus Income Fund (WCPNX) and iShares CMBS ETF (CMBS). 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.

	WCPNX	CMBS	Difference
Sharpe ratio: Return per unit of total volatility	1.56	1.16	+0.40
Sortino ratio: Return per unit of downside risk	2.32	1.78	+0.54
Omega ratio: Gain probability vs. loss probability	1.28	1.20	+0.08
Calmar ratio: Return relative to maximum drawdown	2.15	1.77	+0.38
Martin ratio: Return relative to average drawdown	6.72	4.90	+1.81
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WCPNX vs. CMBS - Sharpe Ratio Comparison

The current WCPNX Sharpe Ratio is 1.56, which is higher than the CMBS Sharpe Ratio of 1.16. The chart below compares the historical Sharpe Ratios of WCPNX and CMBS, 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

	WCPNX	CMBS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.56	1.16	+0.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.39	0.16	+0.22
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.77	0.36	+0.41
Sharpe Ratio (All Time) Calculated using the full available price history	0.85	0.44	+0.41

Drawdowns

WCPNX vs. CMBS - Drawdown Comparison

The maximum WCPNX drawdown since its inception was -13.63%, smaller than the maximum CMBS drawdown of -15.87%. Use the drawdown chart below to compare losses from any high point for WCPNX and CMBS.

Drawdown Indicators

	WCPNX	CMBS	Difference
Max Drawdown Largest peak-to-trough decline	-13.63%	-15.87%	+2.24%
Max Drawdown (1Y) Largest decline over 1 year	-2.74%	-2.44%	-0.30%
Max Drawdown (3Y) Largest decline over 3 years	-5.17%	-3.29%	-1.88%
Max Drawdown (5Y) Largest decline over 5 years	-13.63%	-15.87%	+2.24%
Max Drawdown (10Y) Largest decline over 10 years	-13.63%	-15.87%	+2.24%
Current Drawdown Current decline from peak	-1.10%	-1.42%	+0.32%
Average Drawdown Average peak-to-trough decline	-2.18%	-2.95%	+0.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.87%	0.88%	-0.01%

Volatility

WCPNX vs. CMBS - Volatility Comparison

Weitz Core Plus Income Fund (WCPNX) has a higher volatility of 1.31% compared to iShares CMBS ETF (CMBS) at 1.17%. This indicates that WCPNX's price experiences larger fluctuations and is considered to be riskier than CMBS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WCPNX	CMBS	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.31%	1.17%	+0.14%
Volatility (6M) Calculated over the trailing 6-month period	2.77%	2.84%	-0.07%
Volatility (1Y) Calculated over the trailing 1-year period	3.78%	3.72%	+0.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.00%	5.31%	-0.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.17%	5.77%	-1.60%

WCPNX vs. CMBS - Expense Ratio Comparison

WCPNX has a 0.89% expense ratio, which is higher than CMBS's 0.25% expense ratio.

Dividends

WCPNX vs. CMBS - Dividend Comparison

WCPNX's dividend yield for the trailing twelve months is around 4.90%, more than CMBS's 3.57% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CMBS iShares CMBS ETF	3.57%	3.45%	3.31%	2.97%	2.65%	2.46%	2.83%	2.74%	2.70%	2.50%	2.29%	2.31%
WCPNX Weitz Core Plus Income Fund	4.90%	5.26%	6.15%	4.92%	3.04%	2.51%	5.07%	2.95%	2.55%	2.41%	3.72%	1.96%

Frequently Asked Questions

Can I hold both WCPNX and CMBS in my portfolio?

WCPNX and CMBS have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WCPNX or CMBS?

WCPNX has higher volatility (1.31%) compared to CMBS (1.17%). In terms of maximum drawdown, WCPNX dropped -13.63% vs CMBS's -15.87%.

Which has better risk-adjusted returns?

WCPNX currently has the higher Sharpe Ratio (1.56 vs 1.16), 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.