IUFS.L vs. CSPX.L

Last updated Jun 4, 2026

IUFS.L (iShares S&P 500 Financials Sector UCITS ETF USD Acc) and CSPX.L (iShares Core S&P 500 UCITS ETF USD (Acc)) are both exchange-traded funds - IUFS.L is a Financials Equities fund tracking the S&P 500 Capped 35/20 Financials Index, while CSPX.L is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, IUFS.L returned 12.03%/yr vs 15.32%/yr for CSPX.L. A 0.73 correlation means they provide meaningful diversification when combined. IUFS.L charges 0.15%/yr vs 0.07%/yr for CSPX.L.

Performance

IUFS.L vs. CSPX.L - Performance Comparison

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

Returns By Period

In the year-to-date period, IUFS.L achieves a -7.99% return, which is significantly lower than CSPX.L's 10.31% return. Over the past 10 years, IUFS.L has underperformed CSPX.L with an annualized return of 12.03%, while CSPX.L has yielded a comparatively higher 15.32% annualized return.

IUFS.L

• 1D: -1.55%
• 1M: -3.54%
• YTD: -7.99%
• 6M: -4.48%
• 1Y: 0.59%
• 3Y*: 17.22%
• 5Y*: 7.27%
• 10Y*: 12.03%

CSPX.L

• 1D: -0.54%
• 1M: 5.23%
• YTD: 10.31%
• 6M: 11.13%
• 1Y: 28.31%
• 3Y*: 22.31%
• 5Y*: 13.72%
• 10Y*: 15.32%

*Multi-year figures are annualized to reflect compound growth (CAGR)

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

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IUFS.L iShares S&P 500 Financials Sector UCITS ETF USD Acc	-7.99%	15.05%	30.22%	12.12%	-11.04%	36.28%	-3.33%	31.22%	-14.36%	23.02%
CSPX.L iShares Core S&P 500 UCITS ETF USD (Acc)	10.31%	17.45%	25.25%	26.74%	-18.72%	29.35%	17.62%	30.55%	-5.46%	21.60%

Correlation

The correlation between IUFS.L and CSPX.L is 0.59, 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	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.63
Correlation (5Y) Calculated over the trailing 5-year period	0.73
Correlation (10Y) Calculated over the trailing 10-year period	0.72
Correlation (All Time) Calculated using the full available price history since Nov 24, 2015	0.73

The correlation between IUFS.L and CSPX.L shifts across timeframes, from 0.59 (1 year) to 0.73 (all time), reflecting how their relationship changes across market environments.

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

Sectors	IUFS.L	CSPX.L
Financial Services	98.0%	11.1%
Technology	1.7%	38.2%
Industrials	0.2%	7.9%
Basic Materials	-	1.7%
Communication Services	-	10.9%
Consumer Cyclical	-	10.0%
Consumer Defensive	-	4.7%
Energy	-	3.2%
Healthcare	-	8.3%
Real Estate	-	1.9%
Utilities	-	2.2%

Return for Risk

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

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

IUFS.L

IUFS.L Risk / Return Rank: 9
IUFS.L Sharpe Ratio Rank: 9
IUFS.L Sortino Ratio Rank: 9
IUFS.L Omega Ratio Rank: 9
IUFS.L Calmar Ratio Rank: 9
IUFS.L Martin Ratio Rank: 9

CSPX.L

CSPX.L Risk / Return Rank: 71
CSPX.L Sharpe Ratio Rank: 70
CSPX.L Sortino Ratio Rank: 75
CSPX.L Omega Ratio Rank: 70
CSPX.L Calmar Ratio Rank: 67
CSPX.L Martin Ratio Rank: 76

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.

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

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

	IUFS.L	CSPX.L	Difference
Sharpe ratio: Return per unit of total volatility	0.04	2.36	-2.32
Sortino ratio: Return per unit of downside risk	0.16	3.46	-3.29
Omega ratio: Gain probability vs. loss probability	1.02	1.43	-0.41
Calmar ratio: Return relative to maximum drawdown	0.04	3.40	-3.36
Martin ratio: Return relative to average drawdown	0.11	14.75	-14.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

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

The current IUFS.L Sharpe Ratio is 0.04, which is lower than the CSPX.L Sharpe Ratio of 2.36. The chart below compares the historical Sharpe Ratios of IUFS.L and CSPX.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.

Sharpe Ratios by Period

	IUFS.L	CSPX.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.04	2.36	-2.32
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.38	0.86	-0.47
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.57	0.94	-0.37
Sharpe Ratio (All Time) Calculated using the full available price history	0.52	0.94	-0.42

Drawdowns

IUFS.L vs. CSPX.L - Drawdown Comparison

The maximum IUFS.L drawdown since its inception was -42.92%, which is greater than CSPX.L's maximum drawdown of -33.90%. Use the drawdown chart below to compare losses from any high point for IUFS.L and CSPX.L.

Drawdown Indicators

	IUFS.L	CSPX.L	Difference
Max Drawdown Largest peak-to-trough decline	-42.92%	-33.90%	-9.02%
Max Drawdown (1Y) Largest decline over 1 year	-13.95%	-8.17%	-5.78%
Max Drawdown (3Y) Largest decline over 3 years	-16.62%	-18.50%	+1.88%
Max Drawdown (5Y) Largest decline over 5 years	-26.02%	-24.39%	-1.63%
Max Drawdown (10Y) Largest decline over 10 years	-42.92%	-33.90%	-9.02%
Current Drawdown Current decline from peak	-9.74%	-0.54%	-9.20%
Average Drawdown Average peak-to-trough decline	-7.86%	-3.72%	-4.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.52%	1.90%	+3.62%

Volatility

IUFS.L vs. CSPX.L - Volatility Comparison

iShares S&P 500 Financials Sector UCITS ETF USD Acc (IUFS.L) and iShares Core S&P 500 UCITS ETF USD (Acc) (CSPX.L) have volatilities of 3.42% and 3.30%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IUFS.L	CSPX.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.42%	3.30%	+0.12%
Volatility (6M) Calculated over the trailing 6-month period	10.82%	8.71%	+2.11%
Volatility (1Y) Calculated over the trailing 1-year period	14.40%	11.84%	+2.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.94%	15.97%	+2.97%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.07%	16.19%	+4.88%

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

IUFS.L has a 0.15% expense ratio, which is higher than CSPX.L's 0.07% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IUFS.L vs. CSPX.L - Dividend Comparison

Neither IUFS.L nor CSPX.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both IUFS.L and CSPX.L in my portfolio?

IUFS.L and CSPX.L have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IUFS.L or CSPX.L?

On fees, CSPX.L is cheaper at 0.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IUFS.L or CSPX.L?

CSPX.L is cheaper with a 0.07% expense ratio, compared with 0.15% for IUFS.L.

What is the main difference between IUFS.L and CSPX.L?

IUFS.L is categorized as Financials Equities, while CSPX.L is S&P 500. IUFS.L tracks S&P 500 Capped 35/20 Financials Index, while CSPX.L tracks S&P 500 Index. They also come from different issuers: iShares and BlackRock. Their fees differ too: 0.15% for IUFS.L and 0.07% for CSPX.L.