IB01.L vs. CSP1.L

Last updated Jun 5, 2026

IB01.L (iShares USD Treasury Bond 0-1yr UCITS ETF (Acc)) and CSP1.L (iShares Core S&P 500 UCITS ETF) are both exchange-traded funds - IB01.L is a Government Bonds fund tracking the ICE U.S. Treasury Short Bond Index, while CSP1.L is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 5 years, IB01.L returned 3.39%/yr vs 13.73%/yr for CSP1.L. At a 0.02 correlation, their price movements are largely independent. Both charge a 0.07% expense ratio.

Performance

IB01.L vs. CSP1.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares USD Treasury Bond 0-1yr UCITS ETF (Acc) (IB01.L) and iShares Core S&P 500 UCITS ETF (CSP1.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

IB01.L is traded in USD, while CSP1.L is traded in GBp. To make them comparable, the CSP1.L values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, IB01.L achieves a 1.45% return, which is significantly lower than CSP1.L's 10.28% return.

IB01.L

• 1D: 0.03%
• 1M: 0.28%
• YTD: 1.45%
• 6M: 1.75%
• 1Y: 3.98%
• 3Y*: 4.73%
• 5Y*: 3.39%
• 10Y*: —

CSP1.L

• 1D: 0.10%
• 1M: 4.65%
• YTD: 10.28%
• 6M: 11.29%
• 1Y: 27.90%
• 3Y*: 22.09%
• 5Y*: 13.73%
• 10Y*: 15.23%

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

IB01.L vs. CSP1.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
IB01.L iShares USD Treasury Bond 0-1yr UCITS ETF (Acc)	1.45%	4.34%	5.25%	4.92%	1.08%	0.00%	0.88%	2.01%
CSP1.L iShares Core S&P 500 UCITS ETF	10.28%	17.63%	25.22%	26.11%	-18.77%	29.88%	17.14%	17.52%

Correlation

The correlation between IB01.L and CSP1.L is -0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.01
Correlation (3Y) Calculated over the trailing 3-year period	-0.01
Correlation (5Y) Calculated over the trailing 5-year period	0.04
Correlation (All Time) Calculated using the full available price history since Feb 25, 2019	0.02

Return for Risk

IB01.L vs. CSP1.L — Risk / Return Rank

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

IB01.L

IB01.L Risk / Return Rank: 100
IB01.L Sharpe Ratio Rank: 100
IB01.L Sortino Ratio Rank: 100
IB01.L Omega Ratio Rank: 100
IB01.L Calmar Ratio Rank: 100
IB01.L Martin Ratio Rank: 100

CSP1.L

CSP1.L Risk / Return Rank: 82
CSP1.L Sharpe Ratio Rank: 84
CSP1.L Sortino Ratio Rank: 83
CSP1.L Omega Ratio Rank: 85
CSP1.L Calmar Ratio Rank: 80
CSP1.L Martin Ratio Rank: 78

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.

IB01.L vs. CSP1.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares USD Treasury Bond 0-1yr UCITS ETF (Acc) (IB01.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.

	IB01.L	CSP1.L	Difference
Sharpe ratio: Return per unit of total volatility	11.94	2.48	+9.46
Sortino ratio: Return per unit of downside risk	36.96	3.57	+33.39
Omega ratio: Gain probability vs. loss probability	8.02	1.44	+6.58
Calmar ratio: Return relative to maximum drawdown	115.45	3.20	+112.25
Martin ratio: Return relative to average drawdown	569.86	13.82	+556.04
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IB01.L vs. CSP1.L - Sharpe Ratio Comparison

The current IB01.L Sharpe Ratio is 11.94, which is higher than the CSP1.L Sharpe Ratio of 2.48. The chart below compares the historical Sharpe Ratios of IB01.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.

Sharpe Ratios by Period

	IB01.L	CSP1.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	11.94	2.48	+9.46
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	9.24	0.88	+8.36
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.94	—
Sharpe Ratio (All Time) Calculated using the full available price history	3.79	1.00	+2.79

Drawdowns

IB01.L vs. CSP1.L - Drawdown Comparison

The maximum IB01.L drawdown since its inception was -0.91%, smaller than the maximum CSP1.L drawdown of -33.51%. Use the drawdown chart below to compare losses from any high point for IB01.L and CSP1.L.

Drawdown Indicators

	IB01.L	CSP1.L	Difference
Max Drawdown Largest peak-to-trough decline	-0.91%	-33.51%	+32.60%
Max Drawdown (1Y) Largest decline over 1 year	-0.03%	-8.68%	+8.65%
Max Drawdown (3Y) Largest decline over 3 years	-0.09%	-18.69%	+18.60%
Max Drawdown (5Y) Largest decline over 5 years	-0.29%	-25.16%	+24.87%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.51%	—
Current Drawdown Current decline from peak	0.00%	-0.55%	+0.55%
Average Drawdown Average peak-to-trough decline	-0.08%	-3.87%	+3.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.01%	2.01%	-2.00%

Volatility

IB01.L vs. CSP1.L - Volatility Comparison

The current volatility for iShares USD Treasury Bond 0-1yr UCITS ETF (Acc) (IB01.L) is 0.10%, while iShares Core S&P 500 UCITS ETF (CSP1.L) has a volatility of 2.58%. This indicates that IB01.L experiences smaller price fluctuations and is considered to be less risky than CSP1.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IB01.L	CSP1.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.10%	2.58%	-2.48%
Volatility (6M) Calculated over the trailing 6-month period	0.24%	7.99%	-7.75%
Volatility (1Y) Calculated over the trailing 1-year period	0.33%	11.21%	-10.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.37%	15.68%	-15.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.72%	16.12%	-15.40%

IB01.L vs. CSP1.L - Expense Ratio Comparison

Both IB01.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

IB01.L vs. CSP1.L - Dividend Comparison

Neither IB01.L nor CSP1.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both IB01.L and CSP1.L in my portfolio?

IB01.L and CSP1.L have a correlation of -0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IB01.L or CSP1.L?

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

Which ETF is cheaper, IB01.L or CSP1.L?

IB01.L and CSP1.L have the same expense ratio: 0.07% per year.

What is the main difference between IB01.L and CSP1.L?

IB01.L is categorized as Government Bonds, while CSP1.L is S&P 500. IB01.L tracks ICE U.S. Treasury Short Bond Index, while CSP1.L tracks S&P 500 Index.