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IS15.L vs. CSP1.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IS15.L vs. CSP1.L

Last updated Jun 6, 2026

IS15.L (iShares GBP Corporate Bond 0-5yr UCITS ETF) and CSP1.L (iShares Core S&P 500 UCITS ETF) are both exchange-traded funds - IS15.L is a European Corporate Bonds fund tracking the Markit iBoxx GBP NonGilts 1-5 TR, while CSP1.L is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, IS15.L returned 2.28%/yr vs 16.04%/yr for CSP1.L. At a 0.08 correlation, their price movements are largely independent. IS15.L charges 0.20%/yr vs 0.07%/yr for CSP1.L.

Performance

IS15.L vs. CSP1.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares GBP Corporate Bond 0-5yr UCITS ETF (IS15.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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Different Trading Currencies

IS15.L is traded in GBP, while CSP1.L is traded in GBp. To make them comparable, the CSP1.L values have been converted to GBP using the latest available exchange rates.

Returns By Period

In the year-to-date period, IS15.L achieves a 0.68% return, which is significantly lower than CSP1.L's 9.86% return. Over the past 10 years, IS15.L has underperformed CSP1.L with an annualized return of 2.28%, while CSP1.L has yielded a comparatively higher 16.04% annualized return.

IS15.L

1D
-0.04%
1M
0.65%
YTD
0.68%
6M
1.18%
1Y
4.47%
3Y*
6.18%
5Y*
2.34%
10Y*
2.28%

CSP1.L

1D
-0.62%
1M
3.89%
YTD
9.86%
6M
9.21%
1Y
28.18%
3Y*
18.87%
5Y*
14.79%
10Y*
16.04%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IS15.L vs. CSP1.L - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IS15.L
iShares GBP Corporate Bond 0-5yr UCITS ETF		0.68%6.24%4.89%7.16%-6.09%-0.84%3.38%4.54%-0.48%1.76%
CSP1.L
iShares Core S&P 500 UCITS ETF		9.86%9.37%27.35%19.79%-9.05%31.07%13.65%26.42%0.01%10.83%

Correlation

The correlation between IS15.L and CSP1.L is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

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

0.20

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

0.17

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

0.15

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

0.14

Correlation (All Time)
Calculated using the full available price history since Mar 31, 2011

0.08

The correlation between IS15.L and CSP1.L shifts across timeframes, from 0.08 (all time) to 0.20 (1 year), reflecting how their relationship changes across market environments.

IS15.L vs. CSP1.L - Sectors Allocation Comparison

Sectors
IS15.L
CSP1.L

Financial Services

28.6%
11.3%

Industrials

25.2%
7.9%

Consumer Cyclical

17.6%
9.9%

Consumer Defensive

8.5%
4.7%

Real Estate

6.0%
1.9%

Technology

5.9%
38.0%

Communication Services

3.9%
10.7%

Basic Materials

2.8%
1.7%

Utilities

1.5%
2.2%

Energy

-

3.4%

Healthcare

-

8.4%

Financial Services

IS15.L
28.6%
CSP1.L
11.3%

Industrials

IS15.L
25.2%
CSP1.L
7.9%

Consumer Cyclical

IS15.L
17.6%
CSP1.L
9.9%

Consumer Defensive

IS15.L
8.5%
CSP1.L
4.7%

Real Estate

IS15.L
6.0%
CSP1.L
1.9%

Technology

IS15.L
5.9%
CSP1.L
38.0%

Communication Services

IS15.L
3.9%
CSP1.L
10.7%

Basic Materials

IS15.L
2.8%
CSP1.L
1.7%

Utilities

IS15.L
1.5%
CSP1.L
2.2%

Energy

IS15.L

-

CSP1.L
3.4%

Healthcare

IS15.L

-

CSP1.L
8.4%

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iShares GBP Corporate Bond 0-5yr UCITS ETF

iShares Core S&P 500 UCITS ETF

Often compared with IS15.L:
IS15.L vs. ERNS.LIS15.L vs. GHYS.LIS15.L vs. SWDA.LIS15.L vs. IGLS.LIS15.L vs. IEAA.LIS15.L vs. SUSS.LIS15.L vs. SSAC.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

IS15.L vs. CSP1.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IS15.L
IS15.L Risk / Return Rank: 5858
Overall Rank
IS15.L Sharpe Ratio Rank: 5656
Sharpe Ratio Rank
IS15.L Sortino Ratio Rank: 5858
Sortino Ratio Rank
IS15.L Omega Ratio Rank: 6767
Omega Ratio Rank
IS15.L Calmar Ratio Rank: 5151
Calmar Ratio Rank
IS15.L Martin Ratio Rank: 5555
Martin Ratio Rank
CSP1.L
CSP1.L Risk / Return Rank: 8383
Overall Rank
CSP1.L Sharpe Ratio Rank: 8686
Sharpe Ratio Rank
CSP1.L Sortino Ratio Rank: 8585
Sortino Ratio Rank
CSP1.L Omega Ratio Rank: 8686
Omega Ratio Rank
CSP1.L Calmar Ratio Rank: 8181
Calmar Ratio Rank
CSP1.L Martin Ratio Rank: 7979
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.

IS15.L vs. CSP1.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares GBP Corporate Bond 0-5yr UCITS ETF (IS15.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.

IS15.LCSP1.LDifference
Sharpe ratioReturn per unit of total volatility
1.73
2.64

-0.91

Sortino ratioReturn per unit of downside risk
2.51
3.54

-1.04

Omega ratioGain probability vs. loss probability

1.36

1.49

-0.13

Calmar ratioReturn relative to maximum drawdown

2.30

3.94

-1.64

Martin ratioReturn relative to average drawdown

8.85

14.50

-5.65

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

IS15.L vs. CSP1.L - Sharpe Ratio Comparison

The current IS15.L Sharpe Ratio is 1.73, which is lower than the CSP1.L Sharpe Ratio of 2.64. The chart below compares the historical Sharpe Ratios of IS15.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

IS15.LCSP1.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.73

2.64

-0.91

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.71

0.74

-0.03

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.73

0.87

-0.14

Sharpe Ratio (All Time)

Calculated using the full available price history

1.00

0.03

+0.97

Drawdowns

IS15.L vs. CSP1.L - Drawdown Comparison

The maximum IS15.L drawdown since its inception was -12.18%, smaller than the maximum CSP1.L drawdown of -25.48%. Use the drawdown chart below to compare losses from any high point for IS15.L and CSP1.L.

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Drawdown Indicators

IS15.LCSP1.LDifference

Max Drawdown

Largest peak-to-trough decline

-12.18%

-25.48%

+13.30%

Max Drawdown (1Y)

Largest decline over 1 year

-1.94%

-7.12%

+5.18%

Max Drawdown (3Y)

Largest decline over 3 years

-1.94%

-20.77%

+18.83%

Max Drawdown (5Y)

Largest decline over 5 years

-12.18%

-20.77%

+8.59%

Max Drawdown (10Y)

Largest decline over 10 years

-12.18%

-25.48%

+13.30%

Current Drawdown

Current decline from peak

-0.22%

-0.86%

+0.64%

Average Drawdown

Average peak-to-trough decline

-1.12%

-3.65%

+2.53%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.50%

1.94%

-1.44%

Volatility

IS15.L vs. CSP1.L - Volatility Comparison

The current volatility for iShares GBP Corporate Bond 0-5yr UCITS ETF (IS15.L) is 0.98%, while iShares Core S&P 500 UCITS ETF (CSP1.L) has a volatility of 2.65%. This indicates that IS15.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.

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Volatility by Period

IS15.LCSP1.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.98%

2.65%

-1.67%

Volatility (6M)

Calculated over the trailing 6-month period

2.33%

7.19%

-4.86%

Volatility (1Y)

Calculated over the trailing 1-year period

2.58%

10.65%

-8.07%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

3.30%

19.99%

-16.69%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

3.13%

18.43%

-15.30%

IS15.L vs. CSP1.L - Expense Ratio Comparison

IS15.L has a 0.20% expense ratio, which is higher than CSP1.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

IS15.L vs. CSP1.L - Dividend Comparison

IS15.L's dividend yield for the trailing twelve months is around 4.54%, 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%
IS15.L
iShares GBP Corporate Bond 0-5yr UCITS ETF		4.54%4.35%4.06%3.05%1.80%1.72%1.81%2.03%2.08%2.15%2.55%2.91%

Frequently Asked Questions

IS15.L and CSP1.L have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

On fees, CSP1.L is cheaper at 0.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.

CSP1.L is cheaper with a 0.07% expense ratio, compared with 0.20% for IS15.L.

IS15.L is categorized as European Corporate Bonds, while CSP1.L is S&P 500. IS15.L tracks Markit iBoxx GBP NonGilts 1-5 TR, while CSP1.L tracks S&P 500 Index. Their fees differ too: 0.20% for IS15.L and 0.07% for CSP1.L.

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