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LKOR vs. YCS
Performance
Return for Risk
Drawdowns
Volatility
Dividends

LKOR vs. YCS

Last updated Jun 3, 2026

LKOR (FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund) and YCS (ProShares UltraShort Yen) are both exchange-traded funds - LKOR is a Corporate Bonds fund tracking the Northern Trust US Long Corporate Bond Quality Value Index, while YCS is a Leveraged Currency fund tracking the USD/JPY Exchange Rate (-200%). Both are passively managed. Over the past 10 years, LKOR returned 2.49%/yr vs 12.32%/yr for YCS. At a correlation of -0.33, they often move in opposite directions. LKOR charges 0.22%/yr vs 1.00%/yr for YCS.

Performance

LKOR vs. YCS - 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 ProShares UltraShort Yen (YCS). 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 1.10% return, which is significantly lower than YCS's 6.99% return. Over the past 10 years, LKOR has underperformed YCS with an annualized return of 2.49%, while YCS has yielded a comparatively higher 12.32% annualized return.

LKOR

1D
0.09%
1M
1.30%
YTD
1.10%
6M
0.46%
1Y
8.19%
3Y*
4.85%
5Y*
-1.36%
10Y*
2.49%

YCS

1D
0.03%
1M
4.27%
YTD
6.99%
6M
8.81%
1Y
35.19%
3Y*
19.77%
5Y*
23.16%
10Y*
12.32%
*Multi-year figures are annualized to reflect compound growth (CAGR)

LKOR vs. YCS - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
LKOR
FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund		1.10%7.04%-1.02%11.64%-25.55%-1.51%16.00%23.97%-7.61%13.87%
YCS
ProShares UltraShort Yen		6.99%9.04%35.41%28.70%29.09%22.38%-11.18%3.37%-1.49%-6.57%

Correlation

The correlation between LKOR and YCS is -0.46, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

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

-0.46

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

-0.40

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

-0.42

Correlation (10Y)
Calculated over the trailing 10-year period

-0.34

Correlation (All Time)
Calculated using the full available price history since Sep 25, 2015

-0.33

The correlation between LKOR and YCS shifts across timeframes, from -0.46 (1 year) to -0.33 (all time), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

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

ProShares UltraShort Yen

Often compared with LKOR:
LKOR vs. ICVTLKOR vs. MLNLKOR vs. BKLNLKOR vs. ICSHLKOR vs. ^GSPCLKOR vs. VCLTLKOR vs. SRLN
Often compared with YCS:
YCS vs. YCLYCS vs. JPYUSD=XYCS vs. PFIXYCS vs. TBTYCS vs. UUPYCS vs. BCSFYCS vs. SPY

Return for Risk

LKOR vs. YCS — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
LKOR
LKOR Risk / Return Rank: 2828
Overall Rank
LKOR Sharpe Ratio Rank: 2828
Sharpe Ratio Rank
LKOR Sortino Ratio Rank: 2828
Sortino Ratio Rank
LKOR Omega Ratio Rank: 2727
Omega Ratio Rank
LKOR Calmar Ratio Rank: 2929
Calmar Ratio Rank
LKOR Martin Ratio Rank: 2525
Martin Ratio Rank
YCS
YCS Risk / Return Rank: 6363
Overall Rank
YCS Sharpe Ratio Rank: 6060
Sharpe Ratio Rank
YCS Sortino Ratio Rank: 5353
Sortino Ratio Rank
YCS Omega Ratio Rank: 6060
Omega Ratio Rank
YCS Calmar Ratio Rank: 7777
Calmar Ratio Rank
YCS Martin Ratio Rank: 6666
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. YCS - 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 ProShares UltraShort Yen (YCS). 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.

LKORYCSDifference

Sharpe ratio

Return per unit of total volatility

1.03

2.05

-1.02

Sortino ratio

Return per unit of downside risk

1.51

2.59

-1.08

Omega ratio

Gain probability vs. loss probability

1.18

1.37

-0.19

Calmar ratio

Return relative to maximum drawdown

1.45

3.95

-2.50

Martin ratio

Return relative to average drawdown

3.54

12.35

-8.80

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. YCS - Sharpe Ratio Comparison

The current LKOR Sharpe Ratio is 1.03, which is lower than the YCS Sharpe Ratio of 2.05. The chart below compares the historical Sharpe Ratios of LKOR and YCS, 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

LKORYCSDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.03

2.05

-1.02

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.11

1.10

-1.21

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.19

0.65

-0.46

Sharpe Ratio (All Time)

Calculated using the full available price history

0.25

0.33

-0.08

Drawdowns

LKOR vs. YCS - Drawdown Comparison

The maximum LKOR drawdown since its inception was -34.78%, smaller than the maximum YCS drawdown of -49.56%. Use the drawdown chart below to compare losses from any high point for LKOR and YCS.

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Drawdown Indicators

LKORYCSDifference

Max Drawdown

Largest peak-to-trough decline

-34.78%

-49.56%

+14.78%

Max Drawdown (1Y)

Largest decline over 1 year

-5.39%

-8.30%

+2.91%

Max Drawdown (3Y)

Largest decline over 3 years

-12.74%

-23.05%

+10.31%

Max Drawdown (5Y)

Largest decline over 5 years

-34.78%

-27.32%

-7.46%

Max Drawdown (10Y)

Largest decline over 10 years

-34.78%

-27.32%

-7.46%

Current Drawdown

Current decline from peak

-13.32%

-0.04%

-13.28%

Average Drawdown

Average peak-to-trough decline

-10.36%

-19.94%

+9.58%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.21%

2.66%

-0.45%

Volatility

LKOR vs. YCS - Volatility Comparison

The current volatility for FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund (LKOR) is 2.45%, while ProShares UltraShort Yen (YCS) has a volatility of 2.75%. This indicates that LKOR experiences smaller price fluctuations and is considered to be less risky than YCS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

LKORYCSDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.45%

2.75%

-0.30%

Volatility (6M)

Calculated over the trailing 6-month period

5.82%

12.36%

-6.54%

Volatility (1Y)

Calculated over the trailing 1-year period

8.00%

17.38%

-9.38%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

12.90%

21.11%

-8.21%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

13.22%

19.02%

-5.80%

LKOR vs. YCS - Expense Ratio Comparison

LKOR has a 0.22% expense ratio, which is lower than YCS's 1.00% expense ratio.

Dividends

LKOR vs. YCS - Dividend Comparison

LKOR's dividend yield for the trailing twelve months is around 5.70%, while YCS has not paid dividends to shareholders.

PositionTTM20252024202320222021202020192018201720162015
LKOR
FlexShares Credit-Scored U.S. Long Corporate Bond Index Fund		5.70%5.57%5.52%4.90%4.71%4.73%6.56%3.71%4.21%3.77%5.53%1.22%
YCS
ProShares UltraShort Yen		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%

Frequently Asked Questions

LKOR and YCS have a correlation of -0.46, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

YCS has higher volatility (2.75%) compared to LKOR (2.45%). In terms of maximum drawdown, LKOR dropped -34.78% vs YCS's -49.56%.

On 10-year performance, YCS leads with 12.32% vs 2.49% for LKOR. On fees, LKOR is cheaper at 0.22% per year. On volatility, LKOR has been the lower-risk option at 2.45%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, YCS has performed better with a 12.32% return vs 2.49%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

LKOR is cheaper with a 0.22% expense ratio, compared with 1.00% for YCS.

LKOR has the higher dividend yield at 5.70%, compared with 0.00% for YCS.

LKOR is categorized as Corporate Bonds, while YCS is Leveraged Currency. LKOR tracks Northern Trust US Long Corporate Bond Quality Value Index, while YCS tracks USD/JPY Exchange Rate (-200%). They also come from different issuers: Northern Trust and ProShares. Their fees differ too: 0.22% for LKOR and 1.00% for YCS.

YCS currently has the higher Sharpe Ratio (2.05 vs 1.03), 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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