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CSPX.L vs. IUSA.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

CSPX.L vs. IUSA.L

Last updated Jun 5, 2026

CSPX.L (iShares Core S&P 500 UCITS ETF USD (Acc)) and IUSA.L (iShares S&P 500 UCITS Dist) are both S&P 500 funds tracking the S&P 500 Index, from BlackRock and iShares respectively. Both are passively managed. Over the past 10 years, CSPX.L returned 15.22%/yr vs 15.68%/yr for IUSA.L. Their correlation of 0.88 suggests significant overlap in exposure. Both charge a 0.07% expense ratio.

Performance

CSPX.L vs. IUSA.L - Performance Comparison

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

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Different Trading Currencies

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

Returns By Period

The year-to-date returns for both investments are quite close, with CSPX.L having a 10.32% return and IUSA.L slightly higher at 10.40%. Both investments have delivered pretty close results over the past 10 years, with CSPX.L having a 15.22% annualized return and IUSA.L not far ahead at 15.68%.

CSPX.L

1D
0.01%
1M
4.51%
YTD
10.32%
6M
11.15%
1Y
27.85%
3Y*
22.17%
5Y*
13.72%
10Y*
15.22%

IUSA.L

1D
0.08%
1M
4.65%
YTD
10.40%
6M
11.47%
1Y
28.32%
3Y*
22.50%
5Y*
14.11%
10Y*
15.68%
*Multi-year figures are annualized to reflect compound growth (CAGR)

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

2026 (YTD)202520242023202220212020201920182017
CSPX.L
iShares Core S&P 500 UCITS ETF USD (Acc)		10.32%17.45%25.25%26.74%-18.72%29.35%17.62%30.55%-5.46%21.60%
IUSA.L
iShares S&P 500 UCITS Dist		10.40%17.97%25.60%26.58%-18.47%30.35%17.64%32.16%-5.18%21.78%

Correlation

The correlation between CSPX.L and IUSA.L is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

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

0.89

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

0.91

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

0.93

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

0.91

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

0.88

The correlation between CSPX.L and IUSA.L has been stable across timeframes, ranging from 0.88 to 0.93 - a consistent structural relationship.

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

Sectors
CSPX.L
IUSA.L

Technology

38.2%
38.2%

Financial Services

11.1%
11.1%

Communication Services

10.9%
10.9%

Consumer Cyclical

10.0%
10.0%

Healthcare

8.3%
8.3%

Industrials

7.9%
7.9%

Consumer Defensive

4.7%
4.7%

Energy

3.2%
3.2%

Utilities

2.2%
2.2%

Real Estate

1.9%
1.9%

Basic Materials

1.7%
1.7%

Technology

CSPX.L
38.2%
IUSA.L
38.2%

Financial Services

CSPX.L
11.1%
IUSA.L
11.1%

Communication Services

CSPX.L
10.9%
IUSA.L
10.9%

Consumer Cyclical

CSPX.L
10.0%
IUSA.L
10.0%

Healthcare

CSPX.L
8.3%
IUSA.L
8.3%

Industrials

CSPX.L
7.9%
IUSA.L
7.9%

Consumer Defensive

CSPX.L
4.7%
IUSA.L
4.7%

Energy

CSPX.L
3.2%
IUSA.L
3.2%

Utilities

CSPX.L
2.2%
IUSA.L
2.2%

Real Estate

CSPX.L
1.9%
IUSA.L
1.9%

Basic Materials

CSPX.L
1.7%
IUSA.L
1.7%

Compare stocks, funds, or ETFs

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iShares Core S&P 500 UCITS ETF USD (Acc)

iShares S&P 500 UCITS Dist

Often compared with CSPX.L:
CSPX.L vs. VOOCSPX.L vs. VUAA.LCSPX.L vs. SPYCSPX.L vs. CSPX.ASCSPX.L vs. CSP1.LCSPX.L vs. VWRL.ASCSPX.L vs. IVV
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

Return for Risk

CSPX.L vs. IUSA.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
CSPX.L
CSPX.L Risk / Return Rank: 7373
Overall Rank
CSPX.L Sharpe Ratio Rank: 7272
Sharpe Ratio Rank
CSPX.L Sortino Ratio Rank: 7777
Sortino Ratio Rank
CSPX.L Omega Ratio Rank: 7272
Omega Ratio Rank
CSPX.L Calmar Ratio Rank: 6868
Calmar Ratio Rank
CSPX.L Martin Ratio Rank: 7777
Martin Ratio Rank
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
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.

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

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

CSPX.LIUSA.LDifference
Sharpe ratioReturn per unit of total volatility
2.32
2.55

-0.23

Sortino ratioReturn per unit of downside risk
3.41
3.68

-0.27

Omega ratioGain probability vs. loss probability

1.42

1.46

-0.03

Calmar ratioReturn relative to maximum drawdown

3.35

3.28

+0.07

Martin ratioReturn relative to average drawdown

14.51

14.20

+0.31

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

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

The current CSPX.L Sharpe Ratio is 2.32, which is comparable to the IUSA.L Sharpe Ratio of 2.55. The chart below compares the historical Sharpe Ratios of CSPX.L and IUSA.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

CSPX.LIUSA.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.32

2.55

-0.23

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.86

0.90

-0.04

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.94

0.97

-0.03

Sharpe Ratio (All Time)

Calculated using the full available price history

0.94

0.61

+0.33

Drawdowns

CSPX.L vs. IUSA.L - Drawdown Comparison

The maximum CSPX.L drawdown since its inception was -33.90%, smaller than the maximum IUSA.L drawdown of -54.80%. Use the drawdown chart below to compare losses from any high point for CSPX.L and IUSA.L.

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Drawdown Indicators

CSPX.LIUSA.LDifference

Max Drawdown

Largest peak-to-trough decline

-33.90%

-54.80%

+20.90%

Max Drawdown (1Y)

Largest decline over 1 year

-8.17%

-8.60%

+0.43%

Max Drawdown (3Y)

Largest decline over 3 years

-18.50%

-19.12%

+0.62%

Max Drawdown (5Y)

Largest decline over 5 years

-24.39%

-25.00%

+0.61%

Max Drawdown (10Y)

Largest decline over 10 years

-33.90%

-33.42%

-0.48%

Current Drawdown

Current decline from peak

-0.53%

-0.53%

0.00%

Average Drawdown

Average peak-to-trough decline

-3.72%

-7.66%

+3.94%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.90%

1.99%

-0.09%

Volatility

CSPX.L vs. IUSA.L - Volatility Comparison

iShares Core S&P 500 UCITS ETF USD (Acc) (CSPX.L) has a higher volatility of 3.13% compared to iShares S&P 500 UCITS Dist (IUSA.L) at 2.57%. This indicates that CSPX.L's price experiences larger fluctuations and is considered to be riskier than IUSA.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

CSPX.LIUSA.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.13%

2.57%

+0.56%

Volatility (6M)

Calculated over the trailing 6-month period

8.70%

7.97%

+0.73%

Volatility (1Y)

Calculated over the trailing 1-year period

11.80%

11.04%

+0.76%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

15.97%

15.67%

+0.30%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

16.19%

16.16%

+0.03%

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

Both CSPX.L and IUSA.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

CSPX.L vs. IUSA.L - Dividend Comparison

CSPX.L has not paid dividends to shareholders, while IUSA.L's dividend yield for the trailing twelve months is around 1.15%.

PositionTTM20252024202320222021202020192018201720162015
CSPX.L
iShares Core S&P 500 UCITS ETF USD (Acc)		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
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

CSPX.L and IUSA.L have a correlation of 0.89, 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.

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

Both ETFs track S&P 500 Index. They also come from different issuers: BlackRock and iShares.

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