VUAG.L vs. BYBG.L

Last updated Jun 5, 2026

VUAG.L (Vanguard S&P 500 UCITS ETF (USD) Accumulating) and BYBG.L (Amundi S&P 500 Buyback ETF-C USD) are both S&P 500 funds - VUAG.L tracks the S&P 500 Index while BYBG.L tracks the S&P 500 Buyback NTR. Both are passively managed. Over the past 5 years, VUAG.L returned 14.93%/yr vs 11.34%/yr for BYBG.L. A 0.78 correlation means they provide meaningful diversification when combined. VUAG.L charges 0.07%/yr vs 0.15%/yr for BYBG.L.

Performance

VUAG.L vs. BYBG.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in Vanguard S&P 500 UCITS ETF (USD) Accumulating (VUAG.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

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

Returns By Period

In the year-to-date period, VUAG.L achieves a 10.56% return, which is significantly higher than BYBG.L's 8.46% return.

VUAG.L

• 1D: 0.06%
• 1M: 4.52%
• YTD: 10.56%
• 6M: 9.91%
• 1Y: 29.04%
• 3Y*: 19.03%
• 5Y*: 14.93%
• 10Y*: —

BYBG.L

• 1D: 0.96%
• 1M: 5.70%
• YTD: 8.46%
• 6M: 9.28%
• 1Y: 23.82%
• 3Y*: 15.56%
• 5Y*: 11.34%
• 10Y*: 13.89%

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

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

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
VUAG.L Vanguard S&P 500 UCITS ETF (USD) Accumulating	10.56%	9.36%	27.33%	19.67%	-8.88%	30.97%	201.05%	9.30%
BYBG.L Amundi S&P 500 Buyback ETF-C USD	8.46%	9.41%	15.83%	9.58%	-1.29%	35.95%	1.99%	8.83%

Correlation

The correlation between VUAG.L and BYBG.L is 0.56, 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	0.56
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.77
Correlation (All Time) Calculated using the full available price history since May 17, 2019	0.78

Over the past year, the correlation between VUAG.L and BYBG.L has dropped to 0.56 - well below their long-term average of 0.78, suggesting their price drivers have been diverging.

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

Sectors	VUAG.L	BYBG.L
Technology	35.7%	22.4%
Financial Services	11.6%	27.9%
Communication Services	11.3%	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	2.4%	0.9%
Real Estate	1.9%	-
Basic Materials	1.8%	3.1%

Return for Risk

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

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

VUAG.L

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

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.

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

This table presents a comparison of risk-adjusted performance metrics for Vanguard S&P 500 UCITS ETF (USD) Accumulating (VUAG.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.

	VUAG.L	BYBG.L	Difference
Sharpe ratio: Return per unit of total volatility	2.73	2.15	+0.58
Sortino ratio: Return per unit of downside risk	3.66	2.99	+0.67
Omega ratio: Gain probability vs. loss probability	1.51	1.38	+0.13
Calmar ratio: Return relative to maximum drawdown	4.08	4.88	-0.80
Martin ratio: Return relative to average drawdown	14.96	13.84	+1.12
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

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

The current VUAG.L Sharpe Ratio is 2.73, which is comparable to the BYBG.L Sharpe Ratio of 2.15. The chart below compares the historical Sharpe Ratios of VUAG.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

	VUAG.L	BYBG.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.73	2.15	+0.58
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.04	0.75	+0.29
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.77	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.90	0.68	+0.21

Drawdowns

VUAG.L vs. BYBG.L - Drawdown Comparison

The maximum VUAG.L drawdown since its inception was -25.61%, smaller than the maximum BYBG.L drawdown of -35.57%. Use the drawdown chart below to compare losses from any high point for VUAG.L and BYBG.L.

Drawdown Indicators

	VUAG.L	BYBG.L	Difference
Max Drawdown Largest peak-to-trough decline	-25.61%	-35.57%	+9.96%
Max Drawdown (1Y) Largest decline over 1 year	-7.11%	-4.86%	-2.25%
Max Drawdown (3Y) Largest decline over 3 years	-20.88%	-20.63%	-0.25%
Max Drawdown (5Y) Largest decline over 5 years	-20.88%	-20.63%	-0.25%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.57%	—
Current Drawdown Current decline from peak	-0.22%	0.00%	-0.22%
Average Drawdown Average peak-to-trough decline	-3.51%	-4.68%	+1.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.94%	1.72%	+0.22%

Volatility

VUAG.L vs. BYBG.L - Volatility Comparison

Vanguard S&P 500 UCITS ETF (USD) Accumulating (VUAG.L) and Amundi S&P 500 Buyback ETF-C USD (BYBG.L) have volatilities of 2.62% and 2.72%, 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

	VUAG.L	BYBG.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.62%	2.72%	-0.10%
Volatility (6M) Calculated over the trailing 6-month period	7.17%	7.49%	-0.32%
Volatility (1Y) Calculated over the trailing 1-year period	10.62%	11.02%	-0.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.32%	15.15%	-0.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	36.09%	18.02%	+18.07%

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

VUAG.L has a 0.07% expense ratio, which is lower than BYBG.L's 0.15% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

VUAG.L vs. BYBG.L - Dividend Comparison

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

Position	TTM	2025	2024	2023	2022	2021	2020
BYBG.L Amundi S&P 500 Buyback ETF-C USD	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VUAG.L Vanguard S&P 500 UCITS ETF (USD) Accumulating	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	71.39%

Frequently Asked Questions

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

VUAG.L and BYBG.L have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

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

On fees, VUAG.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, VUAG.L or BYBG.L?

VUAG.L is cheaper with a 0.07% expense ratio, compared with 0.15% for BYBG.L.

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

VUAG.L tracks S&P 500 Index, while BYBG.L tracks S&P 500 Buyback NTR. They also come from different issuers: Vanguard and Amundi. Their fees differ too: 0.07% for VUAG.L and 0.15% for BYBG.L.