SKOR vs. LKOR
SKOR (FlexShares Credit-Scored US Corporate Bond Index Fund) and LKOR (FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund) are both Corporate Bonds funds from Northern Trust - SKOR tracks the NorthernTrustUS Corporate Bond Quality Value Index while LKOR tracks the Northern Trust US Long Corporate Bond Quality Value Index. Both are passively managed. Over the past 10 years, SKOR returned 2.82%/yr vs 2.48%/yr for LKOR. A 0.71 correlation means they provide meaningful diversification when combined. Both charge a 0.22% expense ratio.
Performance
SKOR vs. LKOR - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, SKOR achieves a 0.45% return, which is significantly lower than LKOR's 1.27% return. Over the past 10 years, SKOR has outperformed LKOR with an annualized return of 2.82%, while LKOR has yielded a comparatively lower 2.48% annualized return.
SKOR
- 1D
- 0.09%
- 1M
- 0.48%
- YTD
- 0.45%
- 6M
- 0.66%
- 1Y
- 4.54%
- 3Y*
- 5.99%
- 5Y*
- 1.78%
- 10Y*
- 2.82%
LKOR
- 1D
- 0.16%
- 1M
- 1.48%
- YTD
- 1.27%
- 6M
- 1.09%
- 1Y
- 6.28%
- 3Y*
- 4.51%
- 5Y*
- -2.00%
- 10Y*
- 2.48%
SKOR vs. LKOR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SKOR FlexShares Credit-Scored US Corporate Bond Index Fund | 0.45% | 7.99% | 4.42% | 7.64% | -9.88% | -1.40% | 8.84% | 10.69% | -1.25% | 4.38% |
LKOR FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund | 1.27% | 7.04% | -1.02% | 11.64% | -25.55% | -1.51% | 16.00% | 23.97% | -7.61% | 13.87% |
Correlation
The correlation between SKOR and LKOR is 0.89, 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 | 0.89 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.88 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.87 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.73 |
Correlation (All Time) Calculated using the full available price history since Sep 24, 2015 | 0.71 |
The correlation between SKOR and LKOR shifts across timeframes, from 0.71 (all time) to 0.89 (1 year), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
SKOR vs. LKOR — Risk / Return Rank
SKOR
LKOR
SKOR vs. LKOR - 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 FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund (LKOR). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| SKOR | LKOR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.88 | ||
| Sortino ratioReturn per unit of downside risk | +1.32 | ||
| Omega ratioGain probability vs. loss probability | 1.31 | 1.14 | +0.17 |
| Calmar ratioReturn relative to maximum drawdown | 2.18 | 1.17 | +1.01 |
| Martin ratioReturn relative to average drawdown | 7.51 | 2.79 | +4.72 |
Loading charts...
Drawdowns
SKOR vs. LKOR - Drawdown Comparison
The maximum SKOR drawdown since its inception was -15.98%, smaller than the maximum LKOR drawdown of -34.78%. Use the drawdown chart below to compare losses from any high point for SKOR and LKOR.
Loading charts...
Drawdown Indicators
| SKOR | LKOR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.98% | -34.78% | +18.80% |
Max Drawdown (1Y)Largest decline over 1 year | -2.09% | -5.39% | +3.30% |
Max Drawdown (3Y)Largest decline over 3 years | -3.11% | -12.74% | +9.63% |
Max Drawdown (5Y)Largest decline over 5 years | -15.13% | -34.78% | +19.65% |
Max Drawdown (10Y)Largest decline over 10 years | -15.98% | -34.78% | +18.80% |
Current DrawdownCurrent decline from peak | -0.67% | -13.18% | +12.51% |
Average DrawdownAverage peak-to-trough decline | -2.64% | -10.37% | +7.73% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.61% | 2.26% | -1.65% |
Volatility
SKOR vs. LKOR - Volatility Comparison
The current volatility for FlexShares Credit-Scored US Corporate Bond Index Fund (SKOR) is 0.84%, while FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund (LKOR) has a volatility of 1.88%. This indicates that SKOR experiences smaller price fluctuations and is considered to be less risky than LKOR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| SKOR | LKOR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.84% | 1.88% | -1.04% |
Volatility (6M)Calculated over the trailing 6-month period | 2.07% | 5.87% | -3.80% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.72% | 7.89% | -5.17% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.43% | 12.89% | -8.46% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.90% | 13.22% | -8.32% |
SKOR vs. LKOR - Expense Ratio Comparison
Both SKOR and LKOR have an expense ratio of 0.22%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
SKOR vs. LKOR - Dividend Comparison
SKOR's dividend yield for the trailing twelve months is around 4.66%, less than LKOR's 5.69% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LKOR FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund | 5.69% | 5.57% | 5.52% | 4.90% | 4.71% | 4.73% | 6.56% | 3.71% | 4.21% | 3.77% | 5.53% | 1.22% |
SKOR FlexShares Credit-Scored US Corporate Bond Index Fund | 4.66% | 4.70% | 4.90% | 3.90% | 2.57% | 2.55% | 3.38% | 3.53% | 2.85% | 2.46% | 2.74% | 2.25% |
Frequently Asked Questions
SKOR and LKOR have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
LKOR has higher volatility (1.88%) compared to SKOR (0.84%). In terms of maximum drawdown, SKOR dropped -15.98% vs LKOR's -34.78%.
On 10-year performance, SKOR leads with 2.82% vs 2.48% for LKOR. Both ETFs have the same 0.22% expense ratio. On volatility, SKOR has been the lower-risk option at 0.84%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, SKOR has performed better with a 2.82% return vs 2.48%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
SKOR and LKOR have the same expense ratio: 0.22% per year.
LKOR has the higher dividend yield at 5.69%, compared with 4.66% for SKOR.
SKOR tracks NorthernTrustUS Corporate Bond Quality Value Index, while LKOR tracks Northern Trust US Long Corporate Bond Quality Value Index.
SKOR currently has the higher Sharpe Ratio (1.68 vs 0.80), 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.
Find the right allocation for SKOR and LKOR
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer