GMODX vs. STBNX

Last updated Jun 5, 2026

GMODX (GMO Opportunistic Income Fund) and STBNX (Sierra Tactical Bond Fund) are both Nontraditional Bonds funds. Over the past 5 years, GMODX returned 3.85%/yr vs 1.55%/yr for STBNX. At a 0.23 correlation, their price movements are largely independent. GMODX charges 0.47%/yr vs 1.63%/yr for STBNX.

Performance

GMODX vs. STBNX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in GMO Opportunistic Income Fund (GMODX) and Sierra Tactical Bond Fund (STBNX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GMODX achieves a 1.06% return, which is significantly higher than STBNX's 0.83% return.

GMODX

• 1D: -0.04%
• 1M: 0.07%
• YTD: 1.06%
• 6M: 1.36%
• 1Y: 4.53%
• 3Y*: 5.84%
• 5Y*: 3.85%
• 10Y*: 4.24%

STBNX

• 1D: -0.24%
• 1M: 0.12%
• YTD: 0.83%
• 6M: 1.13%
• 1Y: 5.04%
• 3Y*: 3.91%
• 5Y*: 1.55%
• 10Y*: —

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

GMODX vs. STBNX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
GMODX GMO Opportunistic Income Fund	1.06%	6.47%	6.11%	7.07%	-2.09%	2.83%	3.34%	0.12%
STBNX Sierra Tactical Bond Fund	0.83%	-0.37%	6.36%	6.76%	-4.47%	1.11%	15.56%	2.41%

Correlation

The correlation between GMODX and STBNX is 0.36, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.36
Correlation (3Y) Calculated over the trailing 3-year period	0.45
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (All Time) Calculated using the full available price history since Oct 2, 2019	0.23

The correlation between GMODX and STBNX shifts across timeframes, from 0.23 (all time) to 0.45 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

GMODX vs. STBNX — Risk / Return Rank

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

GMODX

GMODX Risk / Return Rank: 97
GMODX Sharpe Ratio Rank: 96
GMODX Sortino Ratio Rank: 98
GMODX Omega Ratio Rank: 95
GMODX Calmar Ratio Rank: 97
GMODX Martin Ratio Rank: 98

STBNX

STBNX Risk / Return Rank: 41
STBNX Sharpe Ratio Rank: 38
STBNX Sortino Ratio Rank: 41
STBNX Omega Ratio Rank: 41
STBNX Calmar Ratio Rank: 35
STBNX Martin Ratio Rank: 48

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.

GMODX vs. STBNX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for GMO Opportunistic Income Fund (GMODX) and Sierra Tactical Bond Fund (STBNX). 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.

	GMODX	STBNX	Difference
Sharpe ratio: Return per unit of total volatility	3.54	1.74	+1.80
Sortino ratio: Return per unit of downside risk	6.28	2.62	+3.66
Omega ratio: Gain probability vs. loss probability	1.78	1.33	+0.45
Calmar ratio: Return relative to maximum drawdown	7.30	2.16	+5.13
Martin ratio: Return relative to average drawdown	30.63	9.81	+20.82
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GMODX vs. STBNX - Sharpe Ratio Comparison

The current GMODX Sharpe Ratio is 3.54, which is higher than the STBNX Sharpe Ratio of 1.74. The chart below compares the historical Sharpe Ratios of GMODX and STBNX, 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

	GMODX	STBNX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.54	1.74	+1.80
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.01	0.39	+0.62
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.40	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.38	0.82	+0.56

Drawdowns

GMODX vs. STBNX - Drawdown Comparison

The maximum GMODX drawdown since its inception was -8.79%, which is greater than STBNX's maximum drawdown of -8.04%. Use the drawdown chart below to compare losses from any high point for GMODX and STBNX.

Drawdown Indicators

	GMODX	STBNX	Difference
Max Drawdown Largest peak-to-trough decline	-8.79%	-8.04%	-0.75%
Max Drawdown (1Y) Largest decline over 1 year	-0.65%	-2.44%	+1.79%
Max Drawdown (3Y) Largest decline over 3 years	-4.97%	-6.96%	+1.99%
Max Drawdown (5Y) Largest decline over 5 years	-5.79%	-8.04%	+2.25%
Max Drawdown (10Y) Largest decline over 10 years	-8.79%	—	—
Current Drawdown Current decline from peak	-0.12%	-1.17%	+1.05%
Average Drawdown Average peak-to-trough decline	-0.70%	-2.64%	+1.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.16%	0.54%	-0.38%

Volatility

GMODX vs. STBNX - Volatility Comparison

The current volatility for GMO Opportunistic Income Fund (GMODX) is 0.46%, while Sierra Tactical Bond Fund (STBNX) has a volatility of 0.96%. This indicates that GMODX experiences smaller price fluctuations and is considered to be less risky than STBNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GMODX	STBNX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.46%	0.96%	-0.50%
Volatility (6M) Calculated over the trailing 6-month period	0.91%	2.38%	-1.47%
Volatility (1Y) Calculated over the trailing 1-year period	1.35%	3.03%	-1.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.82%	3.97%	-0.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.04%	4.95%	-1.91%

GMODX vs. STBNX - Expense Ratio Comparison

GMODX has a 0.47% expense ratio, which is lower than STBNX's 1.63% expense ratio.

Dividends

GMODX vs. STBNX - Dividend Comparison

GMODX's dividend yield for the trailing twelve months is around 5.01%, less than STBNX's 5.26% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GMODX GMO Opportunistic Income Fund	5.01%	4.99%	5.28%	6.17%	5.44%	2.10%	4.15%	5.69%	4.35%	2.66%	2.55%	1.71%
STBNX Sierra Tactical Bond Fund	5.26%	4.98%	5.17%	4.53%	1.41%	2.74%	6.55%	0.87%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both GMODX and STBNX in my portfolio?

GMODX and STBNX have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GMODX or STBNX?

STBNX has higher volatility (0.96%) compared to GMODX (0.46%). In terms of maximum drawdown, GMODX dropped -8.79% vs STBNX's -8.04%.

Which has better risk-adjusted returns?

GMODX currently has the higher Sharpe Ratio (3.54 vs 1.74), 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.