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LKOR vs. IBDS
Performance
Return for Risk
Drawdowns
Volatility
Dividends

LKOR vs. IBDS

Last updated Jun 4, 2026

LKOR (FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund) and IBDS (iShares iBonds Dec 2027 Term Corporate ETF) are both Corporate Bonds funds - LKOR tracks the Northern Trust US Long Corporate Bond Quality Value Index while IBDS tracks the Bloomberg Barclays December 2027 Maturity Corporate Index. Both are passively managed. Over the past 5 years, LKOR returned -1.59%/yr vs 1.45%/yr for IBDS. A 0.66 correlation means they provide meaningful diversification when combined. LKOR charges 0.22%/yr vs 0.10%/yr for IBDS.

Performance

LKOR vs. IBDS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund (LKOR) and iShares iBonds Dec 2027 Term Corporate ETF (IBDS). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, LKOR achieves a 0.74% return, which is significantly lower than IBDS's 1.23% return.

LKOR

1D
-0.36%
1M
1.51%
YTD
0.74%
6M
-0.19%
1Y
7.57%
3Y*
4.72%
5Y*
-1.59%
10Y*
2.45%

IBDS

1D
-0.04%
1M
0.31%
YTD
1.23%
6M
1.61%
1Y
4.57%
3Y*
5.28%
5Y*
1.45%
10Y*
—
*Multi-year figures are annualized to reflect compound growth (CAGR)

LKOR vs. IBDS - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
LKOR
FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund		0.74%7.04%-1.02%11.64%-25.55%-1.51%16.00%23.97%-7.61%3.60%
IBDS
iShares iBonds Dec 2027 Term Corporate ETF		1.23%5.86%4.61%6.44%-9.52%-1.56%8.95%15.08%-2.76%1.14%

Correlation

The correlation between LKOR and IBDS is 0.60, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.60

Correlation (3Y)
Calculated over the trailing 3-year period

0.70

Correlation (5Y)
Calculated over the trailing 5-year period

0.74

Correlation (All Time)
Calculated using the full available price history since Sep 15, 2017

0.66

The correlation between LKOR and IBDS shifts across timeframes, from 0.60 (1 year) to 0.74 (5 years), reflecting how their relationship changes across market environments.

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FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund

iShares iBonds Dec 2027 Term Corporate ETF

Often compared with LKOR:
LKOR vs. ICVTLKOR vs. MLNLKOR vs. BKLNLKOR vs. ICSHLKOR vs. ^GSPCLKOR vs. VCLTLKOR vs. SRLN
Often compared with IBDS:
IBDS vs. BSCRIBDS vs. IBTHIBDS vs. FDHYIBDS vs. FLOTIBDS vs. SGOVIBDS vs. ITOTIBDS vs. JPIE

Return for Risk

LKOR vs. IBDS — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
LKOR
LKOR Risk / Return Rank: 2626
Overall Rank
LKOR Sharpe Ratio Rank: 2626
Sharpe Ratio Rank
LKOR Sortino Ratio Rank: 2525
Sortino Ratio Rank
LKOR Omega Ratio Rank: 2424
Omega Ratio Rank
LKOR Calmar Ratio Rank: 2929
Calmar Ratio Rank
LKOR Martin Ratio Rank: 2525
Martin Ratio Rank
IBDS
IBDS Risk / Return Rank: 9797
Overall Rank
IBDS Sharpe Ratio Rank: 9696
Sharpe Ratio Rank
IBDS Sortino Ratio Rank: 9898
Sortino Ratio Rank
IBDS Omega Ratio Rank: 9898
Omega Ratio Rank
IBDS Calmar Ratio Rank: 9797
Calmar Ratio Rank
IBDS Martin Ratio Rank: 9797
Martin Ratio Rank
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.

LKOR vs. IBDS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund (LKOR) and iShares iBonds Dec 2027 Term Corporate ETF (IBDS). 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.

LKORIBDSDifference

Sharpe ratio

Return per unit of total volatility

0.95

4.19

-3.24

Sortino ratio

Return per unit of downside risk

1.40

8.04

-6.64

Omega ratio

Gain probability vs. loss probability

1.17

2.09

-0.93

Calmar ratio

Return relative to maximum drawdown

1.41

10.55

-9.15

Martin ratio

Return relative to average drawdown

3.43

48.73

-45.30

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LKOR vs. IBDS - Sharpe Ratio Comparison

The current LKOR Sharpe Ratio is 0.95, which is lower than the IBDS Sharpe Ratio of 4.19. The chart below compares the historical Sharpe Ratios of LKOR and IBDS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Sharpe Ratios by Period

LKORIBDSDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

0.95

4.19

-3.24

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.12

0.35

-0.47

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.19

—

—

Sharpe Ratio (All Time)

Calculated using the full available price history

0.25

0.57

-0.32

Drawdowns

LKOR vs. IBDS - Drawdown Comparison

The maximum LKOR drawdown since its inception was -34.78%, which is greater than IBDS's maximum drawdown of -16.75%. Use the drawdown chart below to compare losses from any high point for LKOR and IBDS.

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Drawdown Indicators

LKORIBDSDifference

Max Drawdown

Largest peak-to-trough decline

-34.78%

-16.75%

-18.03%

Max Drawdown (1Y)

Largest decline over 1 year

-5.39%

-0.43%

-4.96%

Max Drawdown (3Y)

Largest decline over 3 years

-12.74%

-2.27%

-10.47%

Max Drawdown (5Y)

Largest decline over 5 years

-34.78%

-14.98%

-19.80%

Max Drawdown (10Y)

Largest decline over 10 years

-34.78%

—

—

Current Drawdown

Current decline from peak

-13.63%

-0.06%

-13.57%

Average Drawdown

Average peak-to-trough decline

-10.36%

-3.36%

-7.00%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.21%

0.09%

+2.12%

Volatility

LKOR vs. IBDS - Volatility Comparison

FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund (LKOR) has a higher volatility of 2.41% compared to iShares iBonds Dec 2027 Term Corporate ETF (IBDS) at 0.15%. This indicates that LKOR's price experiences larger fluctuations and is considered to be riskier than IBDS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

LKORIBDSDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.41%

0.15%

+2.26%

Volatility (6M)

Calculated over the trailing 6-month period

5.76%

0.64%

+5.12%

Volatility (1Y)

Calculated over the trailing 1-year period

8.00%

1.10%

+6.90%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

12.90%

4.18%

+8.72%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

13.22%

5.55%

+7.67%

LKOR vs. IBDS - Expense Ratio Comparison

LKOR has a 0.22% expense ratio, which is higher than IBDS's 0.10% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

LKOR vs. IBDS - Dividend Comparison

LKOR's dividend yield for the trailing twelve months is around 5.72%, more than IBDS's 4.32% yield.

PositionTTM20252024202320222021202020192018201720162015
IBDS
iShares iBonds Dec 2027 Term Corporate ETF		4.32%4.36%4.37%3.81%2.87%2.19%2.66%3.32%3.66%0.97%0.00%0.00%
LKOR
FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund		5.72%5.57%5.52%4.90%4.71%4.73%6.56%3.71%4.21%3.77%5.53%1.22%

Frequently Asked Questions

LKOR and IBDS have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

LKOR has higher volatility (2.41%) compared to IBDS (0.15%). In terms of maximum drawdown, LKOR dropped -34.78% vs IBDS's -16.75%.

On 5-year performance, IBDS leads with 1.45% vs -1.59% for LKOR. On fees, IBDS is cheaper at 0.10% per year. On volatility, IBDS has been the lower-risk option at 0.15%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 5-year period, IBDS has performed better with a 1.45% return vs -1.59%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

IBDS is cheaper with a 0.10% expense ratio, compared with 0.22% for LKOR.

LKOR has the higher dividend yield at 5.72%, compared with 4.32% for IBDS.

LKOR tracks Northern Trust US Long Corporate Bond Quality Value Index, while IBDS tracks Bloomberg Barclays December 2027 Maturity Corporate Index. They also come from different issuers: Northern Trust and iShares. Their fees differ too: 0.22% for LKOR and 0.10% for IBDS.

IBDS currently has the higher Sharpe Ratio (4.19 vs 0.95), 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.

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