IUIS.L vs. BYBG.L

Last updated Jun 5, 2026

IUIS.L (iShares S&P 500 Industrials Sector UCITS ETF USD (Acc)) and BYBG.L (Amundi S&P 500 Buyback ETF-C USD) are both S&P 500 funds - IUIS.L tracks the S&P 500 Capped 35/20 Industrials Index while BYBG.L tracks the S&P 500 Buyback NTR. Both are passively managed. Over the past 5 years, IUIS.L returned 12.20%/yr vs 10.17%/yr for BYBG.L. Their correlation of 0.80 suggests significant overlap in exposure. Both charge a 0.15% expense ratio.

Performance

IUIS.L vs. BYBG.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares S&P 500 Industrials Sector UCITS ETF USD (Acc) (IUIS.L) and Amundi S&P 500 Buyback ETF-C USD (BYBG.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, IUIS.L achieves a 12.57% return, which is significantly higher than BYBG.L's 8.19% return.

IUIS.L

• 1D: -0.10%
• 1M: 1.82%
• YTD: 12.57%
• 6M: 13.85%
• 1Y: 23.10%
• 3Y*: 21.90%
• 5Y*: 12.20%
• 10Y*: —

BYBG.L

• 1D: 1.01%
• 1M: 4.80%
• YTD: 8.19%
• 6M: 10.09%
• 1Y: 22.64%
• 3Y*: 18.54%
• 5Y*: 10.17%
• 10Y*: 13.06%

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

IUIS.L vs. BYBG.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IUIS.L iShares S&P 500 Industrials Sector UCITS ETF USD (Acc)	12.57%	19.24%	17.42%	17.93%	-5.28%	20.71%	9.96%	28.50%	-14.17%	16.92%
BYBG.L Amundi S&P 500 Buyback ETF-C USD	8.19%	17.67%	13.90%	15.36%	-11.84%	34.72%	5.11%	32.10%	-9.39%	18.16%

Correlation

The correlation between IUIS.L and BYBG.L is 0.58, 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	0.58
Correlation (3Y) Calculated over the trailing 3-year period	0.72
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (All Time) Calculated using the full available price history since Mar 23, 2017	0.80

Over the past year, the correlation between IUIS.L and BYBG.L has dropped to 0.58 - well below their long-term average of 0.80, suggesting their price drivers have been diverging.

IUIS.L vs. BYBG.L - Sectors Allocation Comparison

Sectors	IUIS.L	BYBG.L
Industrials	90.1%	9.0%
Utilities	5.3%	0.9%
Technology	3.7%	22.4%
Consumer Cyclical	0.5%	15.8%
Basic Materials	0.2%	3.1%
Communication Services	-	4.6%
Consumer Defensive	-	3.7%
Energy	-	5.2%
Financial Services	-	27.9%
Healthcare	-	7.5%
Real Estate	-	-

Return for Risk

IUIS.L vs. BYBG.L — Risk / Return Rank

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

IUIS.L

IUIS.L Risk / Return Rank: 47
IUIS.L Sharpe Ratio Rank: 46
IUIS.L Sortino Ratio Rank: 50
IUIS.L Omega Ratio Rank: 44
IUIS.L Calmar Ratio Rank: 45
IUIS.L Martin Ratio Rank: 51

BYBG.L

BYBG.L Risk / Return Rank: 71
BYBG.L Sharpe Ratio Rank: 66
BYBG.L Sortino Ratio Rank: 65
BYBG.L Omega Ratio Rank: 63
BYBG.L Calmar Ratio Rank: 87
BYBG.L Martin Ratio Rank: 74

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.

IUIS.L vs. BYBG.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 Industrials Sector UCITS ETF USD (Acc) (IUIS.L) and Amundi S&P 500 Buyback ETF-C USD (BYBG.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.

	IUIS.L	BYBG.L	Difference
Sharpe ratio: Return per unit of total volatility	1.58	1.94	-0.36
Sortino ratio: Return per unit of downside risk	2.42	2.87	-0.45
Omega ratio: Gain probability vs. loss probability	1.28	1.33	-0.05
Calmar ratio: Return relative to maximum drawdown	2.21	4.26	-2.06
Martin ratio: Return relative to average drawdown	8.53	11.95	-3.43
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IUIS.L vs. BYBG.L - Sharpe Ratio Comparison

The current IUIS.L Sharpe Ratio is 1.58, which is comparable to the BYBG.L Sharpe Ratio of 1.94. The chart below compares the historical Sharpe Ratios of IUIS.L and BYBG.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

	IUIS.L	BYBG.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.58	1.94	-0.36
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.70	0.61	+0.09
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.69	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.59	+0.06

Drawdowns

IUIS.L vs. BYBG.L - Drawdown Comparison

The maximum IUIS.L drawdown since its inception was -42.18%, roughly equal to the maximum BYBG.L drawdown of -42.67%. Use the drawdown chart below to compare losses from any high point for IUIS.L and BYBG.L.

Drawdown Indicators

	IUIS.L	BYBG.L	Difference
Max Drawdown Largest peak-to-trough decline	-42.18%	-42.67%	+0.49%
Max Drawdown (1Y) Largest decline over 1 year	-10.42%	-5.29%	-5.13%
Max Drawdown (3Y) Largest decline over 3 years	-19.59%	-19.07%	-0.52%
Max Drawdown (5Y) Largest decline over 5 years	-21.22%	-23.28%	+2.06%
Max Drawdown (10Y) Largest decline over 10 years	—	-42.67%	—
Current Drawdown Current decline from peak	-0.84%	0.00%	-0.84%
Average Drawdown Average peak-to-trough decline	-5.14%	-5.69%	+0.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.70%	1.89%	+0.81%

Volatility

IUIS.L vs. BYBG.L - Volatility Comparison

iShares S&P 500 Industrials Sector UCITS ETF USD (Acc) (IUIS.L) has a higher volatility of 4.96% compared to Amundi S&P 500 Buyback ETF-C USD (BYBG.L) at 3.35%. This indicates that IUIS.L's price experiences larger fluctuations and is considered to be riskier than BYBG.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IUIS.L	BYBG.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.96%	3.35%	+1.61%
Volatility (6M) Calculated over the trailing 6-month period	11.91%	7.95%	+3.96%
Volatility (1Y) Calculated over the trailing 1-year period	14.58%	11.62%	+2.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.30%	16.55%	+0.75%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.62%	19.02%	+0.60%

IUIS.L vs. BYBG.L - Expense Ratio Comparison

Both IUIS.L and BYBG.L have an expense ratio of 0.15%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

IUIS.L vs. BYBG.L - Dividend Comparison

Neither IUIS.L nor BYBG.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both IUIS.L and BYBG.L in my portfolio?

IUIS.L and BYBG.L have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IUIS.L or BYBG.L?

Both ETFs have the same 0.15% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IUIS.L or BYBG.L?

IUIS.L and BYBG.L have the same expense ratio: 0.15% per year.

What is the main difference between IUIS.L and BYBG.L?

IUIS.L tracks S&P 500 Capped 35/20 Industrials Index, while BYBG.L tracks S&P 500 Buyback NTR. They also come from different issuers: iShares and Amundi.