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IGUS.L vs. BYBU.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IGUS.L vs. BYBU.L

Last updated Jun 5, 2026

IGUS.L (iShares S&P 500 GBP Hedged UCITS ETF) and BYBU.L (Amundi S&P 500 Buyback ETF-C USD) are both S&P 500 funds - IGUS.L tracks the S&P 500 Index while BYBU.L tracks the S&P 500 Buyback NTR. Both are passively managed. Over the past 5 years, IGUS.L returned 12.46%/yr vs 11.35%/yr for BYBU.L. At a 0.33 correlation, their price movements are largely independent. IGUS.L charges 0.20%/yr vs 0.15%/yr for BYBU.L.

Performance

IGUS.L vs. BYBU.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares S&P 500 GBP Hedged UCITS ETF (IGUS.L) and Amundi S&P 500 Buyback ETF-C USD (BYBU.L). The values are adjusted to include any dividend payments, if applicable.

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Different Trading Currencies

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

Returns By Period

In the year-to-date period, IGUS.L achieves a 9.82% return, which is significantly higher than BYBU.L's 8.62% return.

IGUS.L

1D
0.06%
1M
4.70%
YTD
9.82%
6M
10.53%
1Y
27.11%
3Y*
21.32%
5Y*
12.46%
10Y*
13.48%

BYBU.L

1D
0.96%
1M
5.72%
YTD
8.62%
6M
9.17%
1Y
23.84%
3Y*
15.72%
5Y*
11.35%
10Y*
—
*Multi-year figures are annualized to reflect compound growth (CAGR)

IGUS.L vs. BYBU.L - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IGUS.L
iShares S&P 500 GBP Hedged UCITS ETF		9.82%17.39%24.64%24.49%-20.60%28.57%14.63%27.27%-7.47%8.78%
BYBU.L
Amundi S&P 500 Buyback ETF-C USD		8.62%9.02%16.67%10.84%-3.19%37.48%2.26%25.34%-0.50%4.46%

Correlation

The correlation between IGUS.L and BYBU.L is 0.50, 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

0.50

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

0.39

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

0.40

Correlation (All Time)
Calculated using the full available price history since Jul 28, 2017

0.33

The correlation between IGUS.L and BYBU.L shifts across timeframes, from 0.33 (all time) to 0.50 (1 year), reflecting how their relationship changes across market environments.

IGUS.L vs. BYBU.L - Sectors Allocation Comparison

Sectors
IGUS.L
BYBU.L

Technology

35.6%
22.4%

Financial Services

11.8%
27.9%

Communication Services

11.2%
4.6%

Consumer Cyclical

10.2%
15.8%

Healthcare

8.5%
7.5%

Industrials

8.3%
9.0%

Consumer Defensive

4.9%
3.7%

Energy

3.5%
5.2%

Utilities

2.3%
0.9%

Real Estate

1.9%
3.0%

Basic Materials

1.8%
3.1%

Technology

IGUS.L
35.6%
BYBU.L
22.4%

Financial Services

IGUS.L
11.8%
BYBU.L
27.9%

Communication Services

IGUS.L
11.2%
BYBU.L
4.6%

Consumer Cyclical

IGUS.L
10.2%
BYBU.L
15.8%

Healthcare

IGUS.L
8.5%
BYBU.L
7.5%

Industrials

IGUS.L
8.3%
BYBU.L
9.0%

Consumer Defensive

IGUS.L
4.9%
BYBU.L
3.7%

Energy

IGUS.L
3.5%
BYBU.L
5.2%

Utilities

IGUS.L
2.3%
BYBU.L
0.9%

Real Estate

IGUS.L
1.9%
BYBU.L
3.0%

Basic Materials

IGUS.L
1.8%
BYBU.L
3.1%

Compare stocks, funds, or ETFs

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iShares S&P 500 GBP Hedged UCITS ETF

Amundi S&P 500 Buyback ETF-C USD

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Return for Risk

IGUS.L vs. BYBU.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IGUS.L
IGUS.L Risk / Return Rank: 7171
Overall Rank
IGUS.L Sharpe Ratio Rank: 7171
Sharpe Ratio Rank
IGUS.L Sortino Ratio Rank: 7575
Sortino Ratio Rank
IGUS.L Omega Ratio Rank: 7171
Omega Ratio Rank
IGUS.L Calmar Ratio Rank: 6565
Calmar Ratio Rank
IGUS.L Martin Ratio Rank: 7575
Martin Ratio Rank
BYBU.L
BYBU.L Risk / Return Rank: 6565
Overall Rank
BYBU.L Sharpe Ratio Rank: 5757
Sharpe Ratio Rank
BYBU.L Sortino Ratio Rank: 6262
Sortino Ratio Rank
BYBU.L Omega Ratio Rank: 5454
Omega Ratio Rank
BYBU.L Calmar Ratio Rank: 8383
Calmar Ratio Rank
BYBU.L Martin Ratio Rank: 6767
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.

IGUS.L vs. BYBU.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 GBP Hedged UCITS ETF (IGUS.L) and Amundi S&P 500 Buyback ETF-C USD (BYBU.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.

IGUS.LBYBU.LDifference
Sharpe ratioReturn per unit of total volatility
2.28
1.97

+0.32

Sortino ratioReturn per unit of downside risk
3.33
2.73

+0.59

Omega ratioGain probability vs. loss probability

1.42

1.34

+0.08

Calmar ratioReturn relative to maximum drawdown

3.20

4.69

-1.49

Martin ratioReturn relative to average drawdown

13.92

13.40

+0.52

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

IGUS.L vs. BYBU.L - Sharpe Ratio Comparison

The current IGUS.L Sharpe Ratio is 2.28, which is comparable to the BYBU.L Sharpe Ratio of 1.97. The chart below compares the historical Sharpe Ratios of IGUS.L and BYBU.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

IGUS.LBYBU.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.28

1.97

+0.32

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.77

0.98

-0.21

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.81

—

—

Sharpe Ratio (All Time)

Calculated using the full available price history

0.82

1.22

-0.40

Drawdowns

IGUS.L vs. BYBU.L - Drawdown Comparison

The maximum IGUS.L drawdown since its inception was -36.66%, which is greater than BYBU.L's maximum drawdown of -23.51%. Use the drawdown chart below to compare losses from any high point for IGUS.L and BYBU.L.

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Drawdown Indicators

IGUS.LBYBU.LDifference

Max Drawdown

Largest peak-to-trough decline

-36.66%

-23.51%

-13.15%

Max Drawdown (1Y)

Largest decline over 1 year

-8.44%

-5.06%

-3.38%

Max Drawdown (3Y)

Largest decline over 3 years

-18.98%

-20.81%

+1.83%

Max Drawdown (5Y)

Largest decline over 5 years

-25.66%

-20.81%

-4.85%

Max Drawdown (10Y)

Largest decline over 10 years

-36.66%

—

—

Current Drawdown

Current decline from peak

-0.46%

0.00%

-0.46%

Average Drawdown

Average peak-to-trough decline

-4.15%

-4.19%

+0.04%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.94%

1.78%

+0.16%

Volatility

IGUS.L vs. BYBU.L - Volatility Comparison

iShares S&P 500 GBP Hedged UCITS ETF (IGUS.L) and Amundi S&P 500 Buyback ETF-C USD (BYBU.L) have volatilities of 3.21% and 3.26%, 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.

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Volatility by Period

IGUS.LBYBU.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.21%

3.26%

-0.05%

Volatility (6M)

Calculated over the trailing 6-month period

8.65%

8.60%

+0.05%

Volatility (1Y)

Calculated over the trailing 1-year period

11.82%

12.07%

-0.25%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

16.11%

20.07%

-3.96%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

16.58%

25.20%

-8.62%

IGUS.L vs. BYBU.L - Expense Ratio Comparison

IGUS.L has a 0.20% expense ratio, which is higher than BYBU.L's 0.15% 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

IGUS.L vs. BYBU.L - Dividend Comparison

Neither IGUS.L nor BYBU.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

IGUS.L and BYBU.L have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

On fees, BYBU.L is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.

BYBU.L is cheaper with a 0.15% expense ratio, compared with 0.20% for IGUS.L.

IGUS.L tracks S&P 500 Index, while BYBU.L tracks S&P 500 Buyback NTR. They also come from different issuers: iShares and Amundi. Their fees differ too: 0.20% for IGUS.L and 0.15% for BYBU.L.

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