SNIDX vs. LMSMX

Last updated Jun 4, 2026

SNIDX (AllianceBernstein Intermediate Duration Portfolio) and LMSMX (Western Asset SMASh Series M Fund) are both Intermediate Core-Plus Bond funds. Over the past 5 years, SNIDX returned -0.46%/yr vs -1.89%/yr for LMSMX. Their correlation of 0.86 suggests significant overlap in exposure. SNIDX charges 0.56%/yr vs 0.00%/yr for LMSMX.

Performance

SNIDX vs. LMSMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AllianceBernstein Intermediate Duration Portfolio (SNIDX) and Western Asset SMASh Series M Fund (LMSMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SNIDX achieves a -0.01% return, which is significantly lower than LMSMX's 1.11% return.

SNIDX

• 1D: 0.09%
• 1M: 0.44%
• YTD: -0.01%
• 6M: 0.07%
• 1Y: 4.84%
• 3Y*: 3.28%
• 5Y*: -0.46%
• 10Y*: 1.67%

LMSMX

• 1D: 0.00%
• 1M: 0.23%
• YTD: 1.11%
• 6M: 1.33%
• 1Y: 8.61%
• 3Y*: 4.81%
• 5Y*: -1.89%
• 10Y*: —

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

SNIDX vs. LMSMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SNIDX AllianceBernstein Intermediate Duration Portfolio	-0.01%	6.19%	1.26%	4.15%	-13.85%	-1.05%	7.16%	8.67%	2.28%	3.64%
LMSMX Western Asset SMASh Series M Fund	1.11%	12.15%	-1.72%	5.13%	-23.44%	-2.32%	12.86%	7.71%	1.46%	5.52%

Correlation

The correlation between SNIDX and LMSMX is 0.86, 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	0.86
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (All Time) Calculated using the full available price history since Feb 2, 2017	0.86

The correlation between SNIDX and LMSMX has been stable across timeframes, ranging from 0.86 to 0.92 - a consistent structural relationship.

Return for Risk

SNIDX vs. LMSMX — Risk / Return Rank

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

SNIDX

SNIDX Risk / Return Rank: 17
SNIDX Sharpe Ratio Rank: 18
SNIDX Sortino Ratio Rank: 19
SNIDX Omega Ratio Rank: 17
SNIDX Calmar Ratio Rank: 17
SNIDX Martin Ratio Rank: 17

LMSMX

LMSMX Risk / Return Rank: 43
LMSMX Sharpe Ratio Rank: 31
LMSMX Sortino Ratio Rank: 36
LMSMX Omega Ratio Rank: 36
LMSMX Calmar Ratio Rank: 71
LMSMX Martin Ratio Rank: 41

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.

SNIDX vs. LMSMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AllianceBernstein Intermediate Duration Portfolio (SNIDX) and Western Asset SMASh Series M Fund (LMSMX). 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.

	SNIDX	LMSMX	Difference
Sharpe ratio: Return per unit of total volatility	1.20	1.61	-0.40
Sortino ratio: Return per unit of downside risk	1.86	2.50	-0.64
Omega ratio: Gain probability vs. loss probability	1.21	1.32	-0.10
Calmar ratio: Return relative to maximum drawdown	1.44	3.28	-1.84
Martin ratio: Return relative to average drawdown	4.68	8.74	-4.07
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SNIDX vs. LMSMX - Sharpe Ratio Comparison

The current SNIDX Sharpe Ratio is 1.20, which is comparable to the LMSMX Sharpe Ratio of 1.61. The chart below compares the historical Sharpe Ratios of SNIDX and LMSMX, 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

	SNIDX	LMSMX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.20	1.61	-0.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.08	-0.18	+0.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.34	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.11	0.17	+0.94

Drawdowns

SNIDX vs. LMSMX - Drawdown Comparison

The maximum SNIDX drawdown since its inception was -18.79%, smaller than the maximum LMSMX drawdown of -30.76%. Use the drawdown chart below to compare losses from any high point for SNIDX and LMSMX.

Drawdown Indicators

	SNIDX	LMSMX	Difference
Max Drawdown Largest peak-to-trough decline	-18.79%	-30.76%	+11.97%
Max Drawdown (1Y) Largest decline over 1 year	-3.37%	-2.64%	-0.73%
Max Drawdown (3Y) Largest decline over 3 years	-6.54%	-10.50%	+3.96%
Max Drawdown (5Y) Largest decline over 5 years	-18.72%	-30.18%	+11.46%
Max Drawdown (10Y) Largest decline over 10 years	-18.79%	—	—
Current Drawdown Current decline from peak	-4.62%	-12.55%	+7.93%
Average Drawdown Average peak-to-trough decline	-2.24%	-10.12%	+7.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.04%	0.99%	+0.05%

Volatility

SNIDX vs. LMSMX - Volatility Comparison

AllianceBernstein Intermediate Duration Portfolio (SNIDX) has a higher volatility of 1.62% compared to Western Asset SMASh Series M Fund (LMSMX) at 1.31%. This indicates that SNIDX's price experiences larger fluctuations and is considered to be riskier than LMSMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SNIDX	LMSMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.62%	1.31%	+0.31%
Volatility (6M) Calculated over the trailing 6-month period	2.86%	2.68%	+0.18%
Volatility (1Y) Calculated over the trailing 1-year period	4.06%	5.41%	-1.35%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.85%	10.38%	-4.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.86%	8.16%	-3.30%

SNIDX vs. LMSMX - Expense Ratio Comparison

SNIDX has a 0.56% expense ratio, which is higher than LMSMX's 0.00% expense ratio.

Dividends

SNIDX vs. LMSMX - Dividend Comparison

SNIDX's dividend yield for the trailing twelve months is around 4.23%, less than LMSMX's 4.40% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LMSMX Western Asset SMASh Series M Fund	4.40%	4.20%	5.24%	4.68%	3.40%	3.78%	6.84%	7.19%	3.18%	3.24%	0.00%	0.00%
SNIDX AllianceBernstein Intermediate Duration Portfolio	4.23%	3.30%	4.32%	2.53%	2.04%	2.72%	4.27%	3.01%	5.37%	2.58%	3.90%	4.34%

Frequently Asked Questions

Can I hold both SNIDX and LMSMX in my portfolio?

SNIDX and LMSMX have a correlation of 0.86, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SNIDX or LMSMX?

SNIDX has higher volatility (1.62%) compared to LMSMX (1.31%). In terms of maximum drawdown, SNIDX dropped -18.79% vs LMSMX's -30.76%.

Which has better risk-adjusted returns?

LMSMX currently has the higher Sharpe Ratio (1.61 vs 1.20), 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.