BYBG.L vs. SPXS.L
BYBG.L (Amundi S&P 500 Buyback ETF-C USD) and SPXS.L (Invesco S&P 500 UCITS ETF USD (Acc)) are both S&P 500 funds - BYBG.L tracks the S&P 500 Buyback NTR while SPXS.L tracks the S&P 500 Index. Both are passively managed. Over the past 10 years, BYBG.L returned 12.62%/yr vs -27.66%/yr for SPXS.L. A 0.78 correlation means they provide meaningful diversification when combined. BYBG.L charges 0.15%/yr vs 0.05%/yr for SPXS.L.
Performance
BYBG.L vs. SPXS.L - Performance Comparison
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Different Trading Currencies
BYBG.L is traded in GBp, while SPXS.L is traded in USD. To make them comparable, the SPXS.L values have been converted to GBp using the latest available exchange rates.
Returns By Period
The year-to-date returns for both stocks are quite close, with BYBG.L having a 9.26% return and SPXS.L slightly lower at 9.10%. Over the past 10 years, BYBG.L has outperformed SPXS.L with an annualized return of 12.62%, while SPXS.L has yielded a comparatively lower -27.66% annualized return.
BYBG.L
- 1D
- 0.05%
- 1M
- 0.21%
- 6M
- 6.44%
- YTD
- 9.26%
- 1Y
- 18.25%
- 3Y*
- 14.61%
- 5Y*
- 10.77%
- 10Y*
- 12.62%
SPXS.L
- 1D
- -1.15%
- 1M
- -1.82%
- 6M
- 7.38%
- YTD
- 9.10%
- 1Y
- -98.80%
- 3Y*
- -74.51%
- 5Y*
- -54.83%
- 10Y*
- -27.66%
BYBG.L vs. SPXS.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BYBG.L Amundi S&P 500 Buyback ETF-C USD | 9.26% | 9.41% | 15.83% | 9.58% | -1.29% | 35.95% | 1.99% | 26.54% | -3.60% | 10.09% |
SPXS.L Invesco S&P 500 UCITS ETF USD (Acc) | 9.10% | -98.91% | 27.76% | 20.65% | -8.84% | 30.87% | 14.43% | 25.88% | 0.43% | 11.11% |
Correlation
The correlation between BYBG.L and SPXS.L is 0.55, 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 | 0.55 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.67 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.72 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.77 |
Correlation (All Time) Calculated using the full available price history since Feb 3, 2015 | 0.78 |
Over the past year, the correlation between BYBG.L and SPXS.L has dropped to 0.55 - well below their long-term average of 0.78, suggesting their price drivers have been diverging.
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Return for Risk
BYBG.L vs. SPXS.L — Risk / Return Rank
BYBG.L
SPXS.L
BYBG.L vs. SPXS.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Amundi S&P 500 Buyback ETF-C USD (BYBG.L) and Invesco S&P 500 UCITS ETF USD (Acc) (SPXS.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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| BYBG.L | SPXS.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.65 | ||
| Sortino ratioReturn per unit of downside risk | +3.15 | ||
| Omega ratioGain probability vs. loss probability | 1.29 | 0.51 | +0.78 |
| Calmar ratioReturn relative to maximum drawdown | 3.74 | -1.00 | +4.74 |
| Martin ratioReturn relative to average drawdown | 10.51 | -1.22 | +11.73 |
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Drawdowns
BYBG.L vs. SPXS.L - Drawdown Comparison
The maximum BYBG.L drawdown since its inception was -45.82%, smaller than the maximum SPXS.L drawdown of -99.07%. Use the drawdown chart below to compare losses from any high point for BYBG.L and SPXS.L.
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Drawdown Indicators
| BYBG.L | SPXS.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -45.82% | -99.07% | +53.25% |
Max Drawdown (1Y)Largest decline over 1 year | -4.86% | -99.07% | +94.21% |
Max Drawdown (3Y)Largest decline over 3 years | -20.63% | -99.07% | +78.44% |
Max Drawdown (5Y)Largest decline over 5 years | -20.63% | -99.07% | +78.44% |
Max Drawdown (10Y)Largest decline over 10 years | -35.57% | -99.07% | +63.50% |
Current DrawdownCurrent decline from peak | -0.84% | -98.93% | +98.09% |
Average DrawdownAverage peak-to-trough decline | -10.00% | -7.36% | -2.64% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.73% | 80.83% | -79.10% |
Volatility
BYBG.L vs. SPXS.L - Volatility Comparison
Amundi S&P 500 Buyback ETF-C USD (BYBG.L) has a higher volatility of 3.46% compared to Invesco S&P 500 UCITS ETF USD (Acc) (SPXS.L) at 3.15%. This indicates that BYBG.L's price experiences larger fluctuations and is considered to be riskier than SPXS.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BYBG.L | SPXS.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.46% | 3.15% | +0.31% |
Volatility (6M)Calculated over the trailing 6-month period | 7.89% | 9.34% | -1.45% |
Volatility (1Y)Calculated over the trailing 1-year period | 11.07% | 99.46% | -88.39% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 15.21% | 46.94% | -31.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.85% | 35.32% | -17.47% |
BYBG.L vs. SPXS.L - Expense Ratio Comparison
BYBG.L has a 0.15% expense ratio, which is higher than SPXS.L's 0.05% 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
BYBG.L vs. SPXS.L - Dividend Comparison
Neither BYBG.L nor SPXS.L has paid dividends to shareholders.
Frequently Asked Questions
BYBG.L and SPXS.L have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, SPXS.L is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.
SPXS.L is cheaper with a 0.05% expense ratio, compared with 0.15% for BYBG.L.
BYBG.L tracks S&P 500 Buyback NTR, while SPXS.L tracks S&P 500 Index. They also come from different issuers: Amundi and Invesco. Their fees differ too: 0.15% for BYBG.L and 0.05% for SPXS.L.
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