SKOR vs. ^GSPC

Last updated Apr 2, 2026

Compare and contrast key facts about FlexShares Credit-Scored US Corporate Bond Index Fund (SKOR) and S&P 500 Index (^GSPC).

SKOR is a passively managed fund by Northern Trust that tracks the performance of the NorthernTrustUS Corporate Bond Quality Value Index. It was launched on Nov 12, 2014.

Performance

SKOR vs. ^GSPC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FlexShares Credit-Scored US Corporate Bond Index Fund (SKOR) and S&P 500 Index (^GSPC). The values are adjusted to include any dividend payments, if applicable.

SKOR vs. ^GSPC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SKOR FlexShares Credit-Scored US Corporate Bond Index Fund	-0.20%	7.99%	4.42%	7.64%	-9.88%	-1.40%	8.84%	10.69%	-1.25%	4.38%
^GSPC S&P 500 Index	-3.95%	16.39%	23.31%	24.23%	-19.44%	26.89%	16.26%	28.88%	-6.24%	19.42%

Returns By Period

In the year-to-date period, SKOR achieves a -0.20% return, which is significantly higher than ^GSPC's -3.95% return. Over the past 10 years, SKOR has underperformed ^GSPC with an annualized return of 2.90%, while ^GSPC has yielded a comparatively higher 12.24% annualized return.

SKOR

• 1D: 0.08%
• 1M: -1.05%
• YTD: -0.20%
• 6M: 0.86%
• 1Y: 5.35%
• 3Y*: 5.63%
• 5Y*: 1.91%
• 10Y*: 2.90%

^GSPC

• 1D: 0.72%
• 1M: -4.45%
• YTD: -3.95%
• 6M: -2.02%
• 1Y: 16.73%
• 3Y*: 16.96%
• 5Y*: 10.34%
• 10Y*: 12.24%

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

Return for Risk

SKOR vs. ^GSPC — Risk / Return Rank

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

SKOR

SKOR Risk / Return Rank: 82
SKOR Sharpe Ratio Rank: 82
SKOR Sortino Ratio Rank: 83
SKOR Omega Ratio Rank: 80
SKOR Calmar Ratio Rank: 82
SKOR Martin Ratio Rank: 81

^GSPC

^GSPC Risk / Return Rank: 67
^GSPC Sharpe Ratio Rank: 63
^GSPC Sortino Ratio Rank: 64
^GSPC Omega Ratio Rank: 69
^GSPC Calmar Ratio Rank: 60
^GSPC Martin Ratio Rank: 77

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.

SKOR vs. ^GSPC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FlexShares Credit-Scored US Corporate Bond Index Fund (SKOR) and S&P 500 Index (^GSPC). 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.

	SKOR	^GSPC	Difference
Sharpe ratio Return per unit of total volatility	1.64	0.92	+0.72
Sortino ratio Return per unit of downside risk	2.29	1.41	+0.88
Omega ratio Gain probability vs. loss probability	1.32	1.21	+0.11
Calmar ratio Return relative to maximum drawdown	2.47	1.41	+1.06
Martin ratio Return relative to average drawdown	9.55	6.61	+2.93
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SKOR vs. ^GSPC - Sharpe Ratio Comparison

The current SKOR Sharpe Ratio is 1.64, which is higher than the ^GSPC Sharpe Ratio of 0.92. The chart below compares the historical Sharpe Ratios of SKOR and ^GSPC, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SKOR	^GSPC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.64	0.92	+0.72
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.43	0.61	-0.18
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	0.68	-0.09
Sharpe Ratio (All Time) Calculated using the full available price history	0.62	0.46	+0.16

Correlation

The correlation between SKOR and ^GSPC is 0.11, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Drawdowns

SKOR vs. ^GSPC - Drawdown Comparison

The maximum SKOR drawdown since its inception was -15.98%, smaller than the maximum ^GSPC drawdown of -56.78%. Use the drawdown chart below to compare losses from any high point for SKOR and ^GSPC.

Drawdown Indicators

	SKOR	^GSPC	Difference
Max Drawdown Largest peak-to-trough decline	-15.98%	-56.78%	+40.80%
Max Drawdown (1Y) Largest decline over 1 year	-2.23%	-12.14%	+9.91%
Max Drawdown (5Y) Largest decline over 5 years	-15.13%	-25.43%	+10.30%
Max Drawdown (10Y) Largest decline over 10 years	-15.98%	-33.92%	+17.94%
Current Drawdown Current decline from peak	-1.30%	-5.78%	+4.48%
Average Drawdown Average peak-to-trough decline	-2.68%	-10.75%	+8.07%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.58%	2.60%	-2.02%

Volatility

SKOR vs. ^GSPC - Volatility Comparison

The current volatility for FlexShares Credit-Scored US Corporate Bond Index Fund (SKOR) is 1.35%, while S&P 500 Index (^GSPC) has a volatility of 5.37%. This indicates that SKOR experiences smaller price fluctuations and is considered to be less risky than ^GSPC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SKOR	^GSPC	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.35%	5.37%	-4.02%
Volatility (6M) Calculated over the trailing 6-month period	1.86%	9.55%	-7.69%
Volatility (1Y) Calculated over the trailing 1-year period	3.28%	18.33%	-15.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.41%	16.90%	-12.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.91%	18.05%	-13.14%