CSUS.L vs. FLXK.L
CSUS.L (iShares VII plc - iShares MSCI USA ETF USD Acc) and FLXK.L (Franklin FTSE Korea UCITS ETF USD (Acc)) are both exchange-traded funds - CSUS.L is a Large Cap Blend Equities fund tracking the Russell 1000 TR USD, while FLXK.L is a South Korea Equities fund tracking the FTSE Korea 30/18 Capped Index (Net Return). Both are passively managed. Over the past 5 years, CSUS.L returned 12.24%/yr vs 15.20%/yr for FLXK.L. A 0.60 correlation means they provide meaningful diversification when combined. CSUS.L charges 0.33%/yr vs 0.09%/yr for FLXK.L.
Performance
CSUS.L vs. FLXK.L - Performance Comparison
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Returns By Period
In the year-to-date period, CSUS.L achieves a 8.92% return, which is significantly lower than FLXK.L's 71.91% return.
CSUS.L
- 1D
- -1.33%
- 1M
- -0.50%
- 6M
- 7.87%
- YTD
- 8.92%
- 1Y
- 19.61%
- 3Y*
- 19.41%
- 5Y*
- 12.24%
- 10Y*
- 14.58%
FLXK.L
- 1D
- -2.04%
- 1M
- -22.39%
- 6M
- 50.11%
- YTD
- 71.91%
- 1Y
- 137.12%
- 3Y*
- 38.47%
- 5Y*
- 15.20%
- 10Y*
- —
CSUS.L vs. FLXK.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
CSUS.L iShares VII plc - iShares MSCI USA ETF USD Acc | 8.92% | 17.22% | 25.29% | 27.68% | -20.12% | 27.06% | 20.30% | 17.79% |
FLXK.L Franklin FTSE Korea UCITS ETF USD (Acc) | 71.91% | 94.79% | -21.63% | 20.77% | -28.01% | -6.85% | 47.31% | 13.27% |
Correlation
The correlation between CSUS.L and FLXK.L is 0.57, 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 | 0.57 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.58 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.60 |
Correlation (All Time) Calculated using the full available price history since Jun 4, 2019 | 0.60 |
The correlation between CSUS.L and FLXK.L has been stable across timeframes, ranging from 0.57 to 0.60 - a consistent structural relationship.
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Return for Risk
CSUS.L vs. FLXK.L — Risk / Return Rank
CSUS.L
FLXK.L
CSUS.L vs. FLXK.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares VII plc - iShares MSCI USA ETF USD Acc (CSUS.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.
| CSUS.L | FLXK.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.42 | ||
| Sortino ratioReturn per unit of downside risk | -0.81 | ||
| Omega ratioGain probability vs. loss probability | 1.29 | 1.45 | -0.16 |
| Calmar ratioReturn relative to maximum drawdown | 2.35 | 5.32 | -2.97 |
| Martin ratioReturn relative to average drawdown | 9.33 | 17.39 | -8.06 |
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Drawdowns
CSUS.L vs. FLXK.L - Drawdown Comparison
The maximum CSUS.L drawdown since its inception was -34.38%, smaller than the maximum FLXK.L drawdown of -49.43%. Use the drawdown chart below to compare losses from any high point for CSUS.L and FLXK.L.
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Drawdown Indicators
| CSUS.L | FLXK.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.38% | -49.43% | +15.05% |
Max Drawdown (1Y)Largest decline over 1 year | -8.31% | -25.64% | +17.33% |
Max Drawdown (3Y)Largest decline over 3 years | -18.85% | -28.54% | +9.69% |
Max Drawdown (5Y)Largest decline over 5 years | -25.44% | -47.00% | +21.56% |
Max Drawdown (10Y)Largest decline over 10 years | -34.38% | — | — |
Current DrawdownCurrent decline from peak | -1.74% | -25.64% | +23.90% |
Average DrawdownAverage peak-to-trough decline | -3.90% | -20.23% | +16.33% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.10% | 7.86% | -5.76% |
Volatility
CSUS.L vs. FLXK.L - Volatility Comparison
The current volatility for iShares VII plc - iShares MSCI USA ETF USD Acc (CSUS.L) is 3.07%, while Franklin FTSE Korea UCITS ETF USD (Acc) (FLXK.L) has a volatility of 18.88%. This indicates that CSUS.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
| CSUS.L | FLXK.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.07% | 18.88% | -15.81% |
Volatility (6M)Calculated over the trailing 6-month period | 9.42% | 41.57% | -32.15% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.25% | 45.12% | -32.87% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.34% | 29.63% | -13.29% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 16.38% | 29.60% | -13.22% |
CSUS.L vs. FLXK.L - Expense Ratio Comparison
CSUS.L has a 0.33% expense ratio, which is higher than FLXK.L's 0.09% expense ratio.
Dividends
CSUS.L vs. FLXK.L - Dividend Comparison
Neither CSUS.L nor FLXK.L has paid dividends to shareholders.
Frequently Asked Questions
CSUS.L and FLXK.L have a correlation of 0.57, 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 CSUS.L.
CSUS.L is categorized as Large Cap Blend Equities, while FLXK.L is South Korea Equities. CSUS.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 CSUS.L and 0.09% for FLXK.L.
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