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ISF.L vs. CSP1.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

ISF.L vs. CSP1.L

Last updated Jun 5, 2026

ISF.L (iShares Core FTSE 100 UCITS ETF (Dist)) and CSP1.L (iShares Core S&P 500 UCITS ETF) are both exchange-traded funds - ISF.L is a Europe Equities fund tracking the FTSE AllSh TR GBP, while CSP1.L is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, ISF.L returned 9.12%/yr vs 16.07%/yr for CSP1.L. A 0.56 correlation means they provide meaningful diversification when combined. Both charge a 0.07% expense ratio.

Performance

ISF.L vs. CSP1.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares Core FTSE 100 UCITS ETF (Dist) (ISF.L) and iShares Core S&P 500 UCITS ETF (CSP1.L). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, ISF.L achieves a 6.13% return, which is significantly lower than CSP1.L's 10.55% return. Over the past 10 years, ISF.L has underperformed CSP1.L with an annualized return of 9.12%, while CSP1.L has yielded a comparatively higher 16.07% annualized return.

ISF.L

1D
0.26%
1M
1.75%
YTD
6.13%
6M
8.49%
1Y
21.32%
3Y*
14.88%
5Y*
11.88%
10Y*
9.12%

CSP1.L

1D
0.05%
1M
5.54%
YTD
10.55%
6M
10.48%
1Y
29.13%
3Y*
19.02%
5Y*
14.94%
10Y*
16.07%
*Multi-year figures are annualized to reflect compound growth (CAGR)

ISF.L vs. CSP1.L - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
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%
CSP1.L
iShares Core S&P 500 UCITS ETF		10.55%9.37%27.35%19.79%-9.05%31.07%13.65%26.42%0.01%10.83%

Correlation

The correlation between ISF.L and CSP1.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

0.50

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

0.60

Correlation (All Time)
Calculated using the full available price history since Sep 16, 2010

0.56

The correlation between ISF.L and CSP1.L shifts across timeframes, from 0.43 (1 year) to 0.60 (10 years), reflecting how their relationship changes across market environments.

ISF.L vs. CSP1.L - Sectors Allocation Comparison

Sectors
ISF.L
CSP1.L

Financial Services

24.8%
11.3%

Industrials

13.8%
7.9%

Healthcare

13.8%
8.4%

Consumer Defensive

12.8%
4.7%

Energy

11.9%
3.4%

Basic Materials

8.6%
1.7%

Utilities

5.3%
2.2%

Consumer Cyclical

4.7%
9.9%

Communication Services

2.6%
10.7%

Real Estate

0.9%
1.9%

Technology

0.8%
38.0%

Financial Services

ISF.L
24.8%
CSP1.L
11.3%

Industrials

ISF.L
13.8%
CSP1.L
7.9%

Healthcare

ISF.L
13.8%
CSP1.L
8.4%

Consumer Defensive

ISF.L
12.8%
CSP1.L
4.7%

Energy

ISF.L
11.9%
CSP1.L
3.4%

Basic Materials

ISF.L
8.6%
CSP1.L
1.7%

Utilities

ISF.L
5.3%
CSP1.L
2.2%

Consumer Cyclical

ISF.L
4.7%
CSP1.L
9.9%

Communication Services

ISF.L
2.6%
CSP1.L
10.7%

Real Estate

ISF.L
0.9%
CSP1.L
1.9%

Technology

ISF.L
0.8%
CSP1.L
38.0%

Compare stocks, funds, or ETFs

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iShares Core FTSE 100 UCITS ETF (Dist)

iShares Core S&P 500 UCITS ETF

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
Often compared with CSP1.L:
CSP1.L vs. CSPX.LCSP1.L vs. VUAG.LCSP1.L vs. SPYCSP1.L vs. IUSA.LCSP1.L vs. VUAA.LCSP1.L vs. SPY5.LCSP1.L vs. VOO

Return for Risk

ISF.L vs. CSP1.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
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
CSP1.L
CSP1.L Risk / Return Rank: 8282
Overall Rank
CSP1.L Sharpe Ratio Rank: 8484
Sharpe Ratio Rank
CSP1.L Sortino Ratio Rank: 8383
Sortino Ratio Rank
CSP1.L Omega Ratio Rank: 8585
Omega Ratio Rank
CSP1.L Calmar Ratio Rank: 8080
Calmar Ratio Rank
CSP1.L Martin Ratio Rank: 7878
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.

ISF.L vs. CSP1.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core FTSE 100 UCITS ETF (Dist) (ISF.L) and iShares Core S&P 500 UCITS ETF (CSP1.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.

ISF.LCSP1.LDifference
Sharpe ratioReturn per unit of total volatility
1.98
2.73

-0.75

Sortino ratioReturn per unit of downside risk
2.78
3.66

-0.88

Omega ratioGain probability vs. loss probability

1.37

1.51

-0.14

Calmar ratioReturn relative to maximum drawdown

2.41

4.07

-1.66

Martin ratioReturn relative to average drawdown

8.18

14.99

-6.81

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

ISF.L vs. CSP1.L - Sharpe Ratio Comparison

The current ISF.L Sharpe Ratio is 1.98, which is comparable to the CSP1.L Sharpe Ratio of 2.73. The chart below compares the historical Sharpe Ratios of ISF.L and CSP1.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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Sharpe Ratios by Period

ISF.LCSP1.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.98

2.73

-0.75

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.95

1.04

-0.10

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.61

1.03

-0.42

Sharpe Ratio (All Time)

Calculated using the full available price history

0.16

1.09

-0.93

Drawdowns

ISF.L vs. CSP1.L - Drawdown Comparison

The maximum ISF.L drawdown since its inception was -68.24%, which is greater than CSP1.L's maximum drawdown of -25.48%. Use the drawdown chart below to compare losses from any high point for ISF.L and CSP1.L.

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Drawdown Indicators

ISF.LCSP1.LDifference

Max Drawdown

Largest peak-to-trough decline

-68.24%

-25.48%

-42.76%

Max Drawdown (1Y)

Largest decline over 1 year

-8.82%

-7.12%

-1.70%

Max Drawdown (3Y)

Largest decline over 3 years

-12.69%

-20.77%

+8.08%

Max Drawdown (5Y)

Largest decline over 5 years

-12.69%

-20.77%

+8.08%

Max Drawdown (10Y)

Largest decline over 10 years

-34.13%

-25.48%

-8.65%

Current Drawdown

Current decline from peak

-3.90%

-0.24%

-3.66%

Average Drawdown

Average peak-to-trough decline

-21.87%

-3.32%

-18.55%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.60%

1.94%

+0.66%

Volatility

ISF.L vs. CSP1.L - Volatility Comparison

iShares Core FTSE 100 UCITS ETF (Dist) (ISF.L) has a higher volatility of 3.85% compared to iShares Core S&P 500 UCITS ETF (CSP1.L) at 2.62%. This indicates that ISF.L's price experiences larger fluctuations and is considered to be riskier than CSP1.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

ISF.LCSP1.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.85%

2.62%

+1.23%

Volatility (6M)

Calculated over the trailing 6-month period

9.31%

7.16%

+2.15%

Volatility (1Y)

Calculated over the trailing 1-year period

10.73%

10.62%

+0.11%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

12.56%

14.31%

-1.75%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

14.84%

15.57%

-0.73%

ISF.L vs. CSP1.L - Expense Ratio Comparison

Both ISF.L and CSP1.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

ISF.L vs. CSP1.L - Dividend Comparison

ISF.L's dividend yield for the trailing twelve months is around 2.86%, while CSP1.L has not paid dividends to shareholders.

PositionTTM20252024202320222021202020192018201720162015
CSP1.L
iShares Core S&P 500 UCITS ETF		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
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%

Frequently Asked Questions

ISF.L and CSP1.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.

ISF.L and CSP1.L have the same expense ratio: 0.07% per year.

ISF.L is categorized as Europe Equities, while CSP1.L is S&P 500. ISF.L tracks FTSE AllSh TR GBP, while CSP1.L tracks S&P 500 Index.

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