BYBU.L vs. EWSP.L

Last updated Jul 18, 2026

BYBU.L (Amundi S&P 500 Buyback ETF-C USD) and EWSP.L (iShares S&P 500 Equal Weight UCITS ETF USD (Acc)) are both S&P 500 funds - BYBU.L tracks the S&P 500 Buyback NTR while EWSP.L tracks the S&P 500 Equal Weight Index. Both are passively managed. Over the past 3 years, BYBU.L returned 15.73%/yr vs 13.36%/yr for EWSP.L. Their correlation of 0.85 suggests significant overlap in exposure. BYBU.L charges 0.15%/yr vs 0.20%/yr for EWSP.L.

Performance

BYBU.L vs. EWSP.L - Performance Comparison

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

Different Trading Currencies

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

Returns By Period

In the year-to-date period, BYBU.L achieves a 9.15% return, which is significantly lower than EWSP.L's 11.71% return.

BYBU.L

• 1D: -0.17%
• 1M: 0.63%
• 6M: 6.98%
• YTD: 9.15%
• 1Y: 18.65%
• 3Y*: 15.73%
• 5Y*: 10.24%
• 10Y*: 12.89%

EWSP.L

• 1D: -0.39%
• 1M: 1.90%
• 6M: 8.40%
• YTD: 11.71%
• 1Y: 18.22%
• 3Y*: 13.36%
• 5Y*: —
• 10Y*: —

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

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

	2026 (YTD)	2025	2024	2023	2022
BYBU.L Amundi S&P 500 Buyback ETF-C USD	9.15%	17.38%	14.02%	15.99%	-0.49%
EWSP.L iShares S&P 500 Equal Weight UCITS ETF USD (Acc)	11.71%	11.87%	12.06%	13.48%	-19.44%

Correlation

The correlation between BYBU.L and EWSP.L is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (All Time) Calculated using the full available price history since Aug 2, 2022	0.85

The correlation between BYBU.L and EWSP.L has been stable across timeframes, ranging from 0.82 to 0.85 - a consistent structural relationship.

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

Sectors	BYBU.L	EWSP.L
Financial Services	26.6%	13.9%
Technology	25.6%	20.9%
Consumer Cyclical	15.3%	10.1%
Industrials	8.8%	14.2%
Healthcare	7.1%	11.1%
Energy	4.8%	4.0%
Communication Services	4.4%	3.9%
Consumer Defensive	3.7%	6.3%
Basic Materials	3.1%	3.9%
Real Estate	3.0%	6.1%
Utilities	0.8%	5.7%

Return for Risk

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

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

BYBU.L

BYBU.L Risk / Return Rank: 68
BYBU.L Sharpe Ratio Rank: 60
BYBU.L Sortino Ratio Rank: 67
BYBU.L Omega Ratio Rank: 55
BYBU.L Calmar Ratio Rank: 85
BYBU.L Martin Ratio Rank: 72

EWSP.L

EWSP.L Risk / Return Rank: 74
EWSP.L Sharpe Ratio Rank: 75
EWSP.L Sortino Ratio Rank: 73
EWSP.L Omega Ratio Rank: 74
EWSP.L Calmar Ratio Rank: 77
EWSP.L Martin Ratio Rank: 71

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.

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

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

	BYBU.L	EWSP.L	Difference
Sharpe ratio: Return per unit of total volatility	1.54	1.79	-0.25
Sortino ratio: Return per unit of downside risk	2.37	2.68	-0.31
Omega ratio: Gain probability vs. loss probability	1.27	1.31	-0.04
Calmar ratio: Return relative to maximum drawdown	3.58	2.56	+1.01
Martin ratio: Return relative to average drawdown	9.86	9.27	+0.59

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

The current BYBU.L Sharpe Ratio is 1.54, which is comparable to the EWSP.L Sharpe Ratio of 1.79. The chart below compares the historical Sharpe Ratios of BYBU.L and EWSP.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.

Drawdowns

BYBU.L vs. EWSP.L - Drawdown Comparison

The maximum BYBU.L drawdown since its inception was -43.01%, which is greater than EWSP.L's maximum drawdown of -27.73%. Use the drawdown chart below to compare losses from any high point for BYBU.L and EWSP.L.

Drawdown Indicators

	BYBU.L	EWSP.L	Difference
Max Drawdown Largest peak-to-trough decline	-43.01%	-27.73%	-15.28%
Max Drawdown (1Y) Largest decline over 1 year	-5.19%	-7.08%	+1.89%
Max Drawdown (3Y) Largest decline over 3 years	-19.21%	-19.07%	-0.14%
Max Drawdown (5Y) Largest decline over 5 years	-22.69%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-43.01%	—	—
Current Drawdown Current decline from peak	-0.17%	-0.42%	+0.25%
Average Drawdown Average peak-to-trough decline	-5.55%	-8.91%	+3.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.89%	1.96%	-0.07%

Volatility

BYBU.L vs. EWSP.L - Volatility Comparison

Amundi S&P 500 Buyback ETF-C USD (BYBU.L) has a higher volatility of 3.29% compared to iShares S&P 500 Equal Weight UCITS ETF USD (Acc) (EWSP.L) at 2.30%. This indicates that BYBU.L's price experiences larger fluctuations and is considered to be riskier than EWSP.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BYBU.L	EWSP.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.29%	2.30%	+0.99%
Volatility (6M) Calculated over the trailing 6-month period	8.62%	7.27%	+1.35%
Volatility (1Y) Calculated over the trailing 1-year period	12.06%	10.27%	+1.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.87%	22.74%	-5.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.71%	22.74%	-4.03%

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

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

BYBU.L vs. EWSP.L - Dividend Comparison

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

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both BYBU.L and EWSP.L in my portfolio?

BYBU.L and EWSP.L have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, BYBU.L or EWSP.L?

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.

Which ETF is cheaper, BYBU.L or EWSP.L?

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

What is the main difference between BYBU.L and EWSP.L?

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