PortfoliosLab logoPortfoliosLab logo

Documentation

Upgrade your plan
IUSA.L vs. ISF.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IUSA.L vs. ISF.L

Last updated Jun 5, 2026

IUSA.L (iShares S&P 500 UCITS Dist) and ISF.L (iShares Core FTSE 100 UCITS ETF (Dist)) are both exchange-traded funds - IUSA.L is a S&P 500 fund tracking the S&P 500 Index, while ISF.L is a Europe Equities fund tracking the FTSE AllSh TR GBP. Both are passively managed. Over the past 10 years, IUSA.L returned 16.52%/yr vs 9.12%/yr for ISF.L. A 0.63 correlation means they provide meaningful diversification when combined. Both charge a 0.07% expense ratio.

Performance

IUSA.L vs. ISF.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares S&P 500 UCITS Dist (IUSA.L) and iShares Core FTSE 100 UCITS ETF (Dist) (ISF.L). The values are adjusted to include any dividend payments, if applicable.

Loading charts...

Returns By Period

In the year-to-date period, IUSA.L achieves a 10.67% return, which is significantly higher than ISF.L's 6.13% return. Over the past 10 years, IUSA.L has outperformed ISF.L with an annualized return of 16.52%, while ISF.L has yielded a comparatively lower 9.12% annualized return.

IUSA.L

1D
0.04%
1M
4.50%
YTD
10.67%
6M
10.05%
1Y
29.42%
3Y*
19.42%
5Y*
15.33%
10Y*
16.52%

ISF.L

1D
0.26%
1M
-0.31%
YTD
6.13%
6M
8.94%
1Y
21.14%
3Y*
14.88%
5Y*
11.88%
10Y*
9.12%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IUSA.L vs. ISF.L - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IUSA.L
iShares S&P 500 UCITS Dist		10.67%9.70%27.73%20.24%-8.72%31.54%14.15%27.06%0.51%11.19%
ISF.L
iShares Core FTSE 100 UCITS ETF (Dist)		6.13%25.97%9.28%7.81%4.83%17.68%-11.67%17.11%-8.96%13.10%

Correlation

The correlation between IUSA.L and ISF.L is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.

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

0.43

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

0.43

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

0.49

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

0.60

Correlation (All Time)
Calculated using the full available price history since Mar 20, 2002

0.63

Over the past year, the correlation between IUSA.L and ISF.L has dropped to 0.43 - well below their long-term average of 0.63, suggesting their price drivers have been diverging.

IUSA.L vs. ISF.L - Sectors Allocation Comparison

Sectors
IUSA.L
ISF.L

Technology

38.2%
0.8%

Financial Services

11.1%
24.8%

Communication Services

10.9%
2.6%

Consumer Cyclical

10.0%
4.7%

Healthcare

8.3%
13.8%

Industrials

7.9%
13.8%

Consumer Defensive

4.7%
12.8%

Energy

3.2%
11.9%

Utilities

2.2%
5.3%

Real Estate

1.9%
0.9%

Basic Materials

1.7%
8.6%

Technology

IUSA.L
38.2%
ISF.L
0.8%

Financial Services

IUSA.L
11.1%
ISF.L
24.8%

Communication Services

IUSA.L
10.9%
ISF.L
2.6%

Consumer Cyclical

IUSA.L
10.0%
ISF.L
4.7%

Healthcare

IUSA.L
8.3%
ISF.L
13.8%

Industrials

IUSA.L
7.9%
ISF.L
13.8%

Consumer Defensive

IUSA.L
4.7%
ISF.L
12.8%

Energy

IUSA.L
3.2%
ISF.L
11.9%

Utilities

IUSA.L
2.2%
ISF.L
5.3%

Real Estate

IUSA.L
1.9%
ISF.L
0.9%

Basic Materials

IUSA.L
1.7%
ISF.L
8.6%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

iShares S&P 500 UCITS Dist

iShares Core FTSE 100 UCITS ETF (Dist)

Often compared with IUSA.L:
IUSA.L vs. CSP1.LIUSA.L vs. VUAA.LIUSA.L vs. IAPD.ASIUSA.L vs. SPX5.LIUSA.L vs. SPXP.LIUSA.L vs. VOOIUSA.L vs. IVV
Often compared with ISF.L:
ISF.L vs. VUKE.LISF.L vs. HUKX.LISF.L vs. UKDV.LISF.L vs. XDAX.LISF.L vs. VUSA.ASISF.L vs. VOOISF.L vs. FEUI.L

Return for Risk

IUSA.L vs. ISF.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IUSA.L
IUSA.L Risk / Return Rank: 8484
Overall Rank
IUSA.L Sharpe Ratio Rank: 8686
Sharpe Ratio Rank
IUSA.L Sortino Ratio Rank: 8585
Sortino Ratio Rank
IUSA.L Omega Ratio Rank: 8686
Omega Ratio Rank
IUSA.L Calmar Ratio Rank: 8181
Calmar Ratio Rank
IUSA.L Martin Ratio Rank: 8080
Martin Ratio Rank
ISF.L
ISF.L Risk / Return Rank: 5656
Overall Rank
ISF.L Sharpe Ratio Rank: 6060
Sharpe Ratio Rank
ISF.L Sortino Ratio Rank: 6060
Sortino Ratio Rank
ISF.L Omega Ratio Rank: 6262
Omega Ratio Rank
ISF.L Calmar Ratio Rank: 5050
Calmar Ratio Rank
ISF.L Martin Ratio Rank: 4949
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.

IUSA.L vs. ISF.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 UCITS Dist (IUSA.L) and iShares Core FTSE 100 UCITS ETF (Dist) (ISF.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.

IUSA.LISF.LDifference
Sharpe ratioReturn per unit of total volatility
2.82
1.98

+0.84

Sortino ratioReturn per unit of downside risk
3.78
2.78

+1.00

Omega ratioGain probability vs. loss probability

1.53

1.37

+0.15

Calmar ratioReturn relative to maximum drawdown

4.20

2.41

+1.79

Martin ratioReturn relative to average drawdown

15.53

8.18

+7.35

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

IUSA.L vs. ISF.L - Sharpe Ratio Comparison

The current IUSA.L Sharpe Ratio is 2.82, which is higher than the ISF.L Sharpe Ratio of 1.98. The chart below compares the historical Sharpe Ratios of IUSA.L and ISF.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.

Loading charts...

Sharpe Ratios by Period

IUSA.LISF.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.82

1.98

+0.84

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

1.07

0.95

+0.12

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

1.06

0.61

+0.44

Sharpe Ratio (All Time)

Calculated using the full available price history

0.58

0.16

+0.42

Drawdowns

IUSA.L vs. ISF.L - Drawdown Comparison

The maximum IUSA.L drawdown since its inception was -38.58%, smaller than the maximum ISF.L drawdown of -68.24%. Use the drawdown chart below to compare losses from any high point for IUSA.L and ISF.L.

Loading charts...

Drawdown Indicators

IUSA.LISF.LDifference

Max Drawdown

Largest peak-to-trough decline

-38.58%

-68.24%

+29.66%

Max Drawdown (1Y)

Largest decline over 1 year

-7.01%

-8.82%

+1.81%

Max Drawdown (3Y)

Largest decline over 3 years

-21.08%

-12.69%

-8.39%

Max Drawdown (5Y)

Largest decline over 5 years

-21.08%

-12.69%

-8.39%

Max Drawdown (10Y)

Largest decline over 10 years

-25.42%

-34.13%

+8.71%

Current Drawdown

Current decline from peak

-0.22%

-3.90%

+3.68%

Average Drawdown

Average peak-to-trough decline

-7.29%

-21.87%

+14.58%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.90%

2.60%

-0.70%

Volatility

IUSA.L vs. ISF.L - Volatility Comparison

The current volatility for iShares S&P 500 UCITS Dist (IUSA.L) is 2.62%, while iShares Core FTSE 100 UCITS ETF (Dist) (ISF.L) has a volatility of 3.85%. This indicates that IUSA.L experiences smaller price fluctuations and is considered to be less risky than ISF.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Loading charts...

Volatility by Period

IUSA.LISF.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.62%

3.85%

-1.23%

Volatility (6M)

Calculated over the trailing 6-month period

7.13%

9.31%

-2.18%

Volatility (1Y)

Calculated over the trailing 1-year period

10.44%

10.73%

-0.29%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

14.33%

12.56%

+1.77%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

15.60%

14.84%

+0.76%

IUSA.L vs. ISF.L - Expense Ratio Comparison

Both IUSA.L and ISF.L have an expense ratio of 0.07%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

IUSA.L vs. ISF.L - Dividend Comparison

IUSA.L's dividend yield for the trailing twelve months is around 1.15%, less than ISF.L's 2.86% yield.

PositionTTM20252024202320222021202020192018201720162015
ISF.L
iShares Core FTSE 100 UCITS ETF (Dist)		2.86%3.01%3.71%3.86%3.75%3.76%3.11%4.47%4.44%3.96%3.79%4.12%
IUSA.L
iShares S&P 500 UCITS Dist		1.15%1.24%1.28%1.55%1.74%1.39%1.80%1.96%2.22%1.95%1.75%2.29%

Frequently Asked Questions

IUSA.L and ISF.L have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Both ETFs have the same 0.07% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

IUSA.L and ISF.L have the same expense ratio: 0.07% per year.

IUSA.L is categorized as S&P 500, while ISF.L is Europe Equities. IUSA.L tracks S&P 500 Index, while ISF.L tracks FTSE AllSh TR GBP.

Portfolio Optimizer

Find the right allocation for IUSA.L and ISF.L

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