NSRIX vs. NOSIX

Last updated Jun 4, 2026

NSRIX (Northern Global Sustainability Index Fund) and NOSIX (Northern Stock Index Fund) are both mutual funds - NSRIX is a Global Equities fund managed by Northern Funds, while NOSIX is a Large Cap Blend Equities fund managed by Northern Funds. Over the past 10 years, NSRIX returned 12.98%/yr vs 15.56%/yr for NOSIX. With a 0.95 correlation, they move nearly in lockstep. NSRIX charges 0.29%/yr vs 0.05%/yr for NOSIX.

Performance

NSRIX vs. NOSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Northern Global Sustainability Index Fund (NSRIX) and Northern Stock Index Fund (NOSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NSRIX achieves a 9.87% return, which is significantly lower than NOSIX's 11.68% return. Over the past 10 years, NSRIX has underperformed NOSIX with an annualized return of 12.98%, while NOSIX has yielded a comparatively higher 15.56% annualized return.

NSRIX

• 1D: -0.21%
• 1M: 5.16%
• YTD: 9.87%
• 6M: 11.04%
• 1Y: 26.66%
• 3Y*: 20.24%
• 5Y*: 11.89%
• 10Y*: 12.98%

NOSIX

• 1D: 0.13%
• 1M: 5.79%
• YTD: 11.68%
• 6M: 11.72%
• 1Y: 28.94%
• 3Y*: 22.69%
• 5Y*: 14.18%
• 10Y*: 15.56%

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

NSRIX vs. NOSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NSRIX Northern Global Sustainability Index Fund	9.87%	21.03%	17.02%	25.44%	-19.45%	24.60%	15.49%	28.29%	-7.65%	21.21%
NOSIX Northern Stock Index Fund	11.68%	17.83%	24.87%	26.24%	-18.25%	28.55%	18.33%	31.35%	-4.54%	21.71%

Correlation

The correlation between NSRIX and NOSIX is 0.94, 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	0.94
Correlation (3Y) Calculated over the trailing 3-year period	0.96
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 Mar 7, 2008	0.95

The correlation between NSRIX and NOSIX has been stable across timeframes, ranging from 0.94 to 0.96 - a consistent structural relationship.

Return for Risk

NSRIX vs. NOSIX — Risk / Return Rank

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

NSRIX

NSRIX Risk / Return Rank: 53
NSRIX Sharpe Ratio Rank: 54
NSRIX Sortino Ratio Rank: 53
NSRIX Omega Ratio Rank: 51
NSRIX Calmar Ratio Rank: 49
NSRIX Martin Ratio Rank: 59

NOSIX

NOSIX Risk / Return Rank: 74
NOSIX Sharpe Ratio Rank: 76
NOSIX Sortino Ratio Rank: 69
NOSIX Omega Ratio Rank: 69
NOSIX Calmar Ratio Rank: 74
NOSIX Martin Ratio Rank: 83

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.

NSRIX vs. NOSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Northern Global Sustainability Index Fund (NSRIX) and Northern Stock Index Fund (NOSIX). 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.

	NSRIX	NOSIX	Difference
Sharpe ratio: Return per unit of total volatility	2.16	2.52	-0.36
Sortino ratio: Return per unit of downside risk	3.08	3.46	-0.38
Omega ratio: Gain probability vs. loss probability	1.39	1.47	-0.07
Calmar ratio: Return relative to maximum drawdown	2.67	3.38	-0.71
Martin ratio: Return relative to average drawdown	11.81	15.86	-4.05
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NSRIX vs. NOSIX - Sharpe Ratio Comparison

The current NSRIX Sharpe Ratio is 2.16, which is comparable to the NOSIX Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of NSRIX and NOSIX, 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

	NSRIX	NOSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.16	2.52	-0.36
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.73	0.83	-0.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.76	0.86	-0.10
Sharpe Ratio (All Time) Calculated using the full available price history	0.46	0.50	-0.04

Drawdowns

NSRIX vs. NOSIX - Drawdown Comparison

The maximum NSRIX drawdown since its inception was -55.30%, roughly equal to the maximum NOSIX drawdown of -55.42%. Use the drawdown chart below to compare losses from any high point for NSRIX and NOSIX.

Drawdown Indicators

	NSRIX	NOSIX	Difference
Max Drawdown Largest peak-to-trough decline	-55.30%	-55.42%	+0.12%
Max Drawdown (1Y) Largest decline over 1 year	-10.36%	-8.89%	-1.47%
Max Drawdown (3Y) Largest decline over 3 years	-17.58%	-18.75%	+1.17%
Max Drawdown (5Y) Largest decline over 5 years	-27.86%	-24.54%	-3.32%
Max Drawdown (10Y) Largest decline over 10 years	-33.66%	-33.82%	+0.16%
Current Drawdown Current decline from peak	-0.21%	0.00%	-0.21%
Average Drawdown Average peak-to-trough decline	-8.45%	-10.33%	+1.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.32%	1.89%	+0.43%

Volatility

NSRIX vs. NOSIX - Volatility Comparison

Northern Global Sustainability Index Fund (NSRIX) has a higher volatility of 3.69% compared to Northern Stock Index Fund (NOSIX) at 2.82%. This indicates that NSRIX's price experiences larger fluctuations and is considered to be riskier than NOSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NSRIX	NOSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.69%	2.82%	+0.87%
Volatility (6M) Calculated over the trailing 6-month period	9.95%	8.97%	+0.98%
Volatility (1Y) Calculated over the trailing 1-year period	12.81%	11.95%	+0.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.46%	17.20%	-0.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.13%	18.21%	-1.08%

NSRIX vs. NOSIX - Expense Ratio Comparison

NSRIX has a 0.29% expense ratio, which is higher than NOSIX's 0.05% expense ratio.

Dividends

NSRIX vs. NOSIX - Dividend Comparison

NSRIX's dividend yield for the trailing twelve months is around 5.15%, more than NOSIX's 2.64% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NOSIX Northern Stock Index Fund	2.64%	2.94%	2.59%	5.02%	4.72%	3.22%	4.00%	2.41%	4.82%	3.13%	2.76%	3.36%
NSRIX Northern Global Sustainability Index Fund	5.15%	5.66%	5.55%	1.57%	1.90%	5.26%	1.62%	2.70%	3.46%	3.14%	3.46%	3.79%

Frequently Asked Questions

Can I hold both NSRIX and NOSIX in my portfolio?

With a correlation of 0.94, NSRIX and NOSIX 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, NSRIX or NOSIX?

NSRIX has higher volatility (3.69%) compared to NOSIX (2.82%). In terms of maximum drawdown, NSRIX dropped -55.30% vs NOSIX's -55.42%.

Which has better risk-adjusted returns?

NOSIX currently has the higher Sharpe Ratio (2.52 vs 2.16), 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.