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CU1.L vs. FLXK.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

Performance

CU1.L vs. FLXK.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares MSCI USA UCITS ETF USD (Acc) (CU1.L) and Franklin FTSE Korea UCITS ETF USD (Acc) (FLXK.L). The values are adjusted to include any dividend payments, if applicable.

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Different Trading Currencies

CU1.L is traded in GBp, while FLXK.L is traded in USD. To make them comparable, the FLXK.L values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, CU1.L achieves a 8.92% return, which is significantly lower than FLXK.L's 72.16% return.


CU1.L

1D
-1.06%
1M
-0.88%
6M
7.37%
YTD
8.92%
1Y
19.25%
3Y*
18.28%
5Y*
12.81%
10Y*
14.31%

FLXK.L

1D
-1.88%
1M
-23.34%
6M
49.24%
YTD
72.16%
1Y
136.47%
3Y*
37.03%
5Y*
15.73%
10Y*
*Multi-year figures are annualized to reflect compound growth (CAGR)

CU1.L vs. FLXK.L - Yearly Performance Comparison


2026 (YTD)2025202420232022202120202019
CU1.L
iShares MSCI USA UCITS ETF USD (Acc)
8.92%9.22%27.38%20.66%-10.62%28.72%16.30%12.65%
FLXK.L
Franklin FTSE Korea UCITS ETF USD (Acc)
72.16%80.91%-20.26%14.73%-19.45%-5.96%42.98%8.49%

Correlation

The correlation between CU1.L and FLXK.L is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.


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

0.48

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

0.48

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

0.47

Correlation (All Time)
Calculated using the full available price history since Jun 4, 2019

0.50

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Return for Risk

CU1.L vs. FLXK.L — Risk / Return Rank

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

CU1.L
CU1.L Risk / Return Rank: 6767
Overall Rank
CU1.L Sharpe Ratio Rank: 7070
Sharpe Ratio Rank
CU1.L Sortino Ratio Rank: 6868
Sortino Ratio Rank
CU1.L Omega Ratio Rank: 7070
Omega Ratio Rank
CU1.L Calmar Ratio Rank: 6666
Calmar Ratio Rank
CU1.L Martin Ratio Rank: 6363
Martin Ratio Rank

FLXK.L
FLXK.L Risk / Return Rank: 9292
Overall Rank
FLXK.L Sharpe Ratio Rank: 9696
Sharpe Ratio Rank
FLXK.L Sortino Ratio Rank: 8989
Sortino Ratio Rank
FLXK.L Omega Ratio Rank: 9191
Omega Ratio Rank
FLXK.L Calmar Ratio Rank: 9494
Calmar Ratio Rank
FLXK.L Martin Ratio Rank: 9393
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.

CU1.L vs. FLXK.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI USA UCITS ETF USD (Acc) (CU1.L) and Franklin FTSE Korea UCITS ETF USD (Acc) (FLXK.L). 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.


CU1.LFLXK.LDifference
Sharpe ratioReturn per unit of total volatility

-1.36

Sortino ratioReturn per unit of downside risk

-0.88

Omega ratioGain probability vs. loss probability

1.32

1.46

-0.14

Calmar ratioReturn relative to maximum drawdown

2.50

5.03

-2.53

Martin ratioReturn relative to average drawdown

8.48

17.21

-8.73

CU1.L vs. FLXK.L - Sharpe Ratio Comparison

The current CU1.L Sharpe Ratio is 1.73, which is lower than the FLXK.L Sharpe Ratio of 3.09. The chart below compares the historical Sharpe Ratios of CU1.L and FLXK.L, 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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Drawdowns

CU1.L vs. FLXK.L - Drawdown Comparison

The maximum CU1.L drawdown since its inception was -98.42%, which is greater than FLXK.L's maximum drawdown of -41.70%. Use the drawdown chart below to compare losses from any high point for CU1.L and FLXK.L.


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Drawdown Indicators


CU1.LFLXK.LDifference

Max Drawdown

Largest peak-to-trough decline

-98.42%

-41.70%

-56.72%

Max Drawdown (1Y)

Largest decline over 1 year

-7.68%

-26.99%

+19.31%

Max Drawdown (3Y)

Largest decline over 3 years

-21.55%

-28.10%

+6.55%

Max Drawdown (5Y)

Largest decline over 5 years

-21.55%

-37.31%

+15.76%

Max Drawdown (10Y)

Largest decline over 10 years

-25.87%

Current Drawdown

Current decline from peak

-1.89%

-26.99%

+25.10%

Average Drawdown

Average peak-to-trough decline

-4.00%

-17.72%

+13.72%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.27%

7.90%

-5.63%

Volatility

CU1.L vs. FLXK.L - Volatility Comparison

The current volatility for iShares MSCI USA UCITS ETF USD (Acc) (CU1.L) is 3.12%, while Franklin FTSE Korea UCITS ETF USD (Acc) (FLXK.L) has a volatility of 18.55%. This indicates that CU1.L experiences smaller price fluctuations and is considered to be less risky than FLXK.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


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Volatility by Period


CU1.LFLXK.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.12%

18.55%

-15.43%

Volatility (6M)

Calculated over the trailing 6-month period

7.93%

40.42%

-32.49%

Volatility (1Y)

Calculated over the trailing 1-year period

11.16%

43.95%

-32.79%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

20.20%

27.96%

-7.76%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

18.38%

28.13%

-9.75%

CU1.L vs. FLXK.L - Expense Ratio Comparison

CU1.L has a 0.33% expense ratio, which is higher than FLXK.L's 0.09% expense ratio.


Dividends

CU1.L vs. FLXK.L - Dividend Comparison

Neither CU1.L nor FLXK.L has paid dividends to shareholders.


Tickers have no history of dividend payments

Frequently Asked Questions


CU1.L and FLXK.L have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

On fees, FLXK.L is cheaper at 0.09% per year. The better choice depends on whether you care most about return, fees, risk, or income.

FLXK.L is cheaper with a 0.09% expense ratio, compared with 0.33% for CU1.L.

CU1.L is categorized as Large Cap Blend Equities, while FLXK.L is South Korea Equities. CU1.L tracks Russell 1000 TR USD, while FLXK.L tracks FTSE Korea 30/18 Capped Index (Net Return). They also come from different issuers: iShares and Franklin. Their fees differ too: 0.33% for CU1.L and 0.09% for FLXK.L.

Portfolio Optimizer

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