ETB vs. SGO.PA

Last updated Jun 5, 2026

ETB (Eaton Vance Tax-Managed Buy-Write Income Fund) is Options Trading fund managed by Eaton Vance, while SGO.PA (Compagnie de Saint-Gobain S.A.) is a stock. Over the past 10 years, ETB returned 8.49%/yr vs 9.80%/yr for SGO.PA. At a 0.35 correlation, their price movements are largely independent.

Performance

ETB vs. SGO.PA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eaton Vance Tax-Managed Buy-Write Income Fund (ETB) and Compagnie de Saint-Gobain S.A. (SGO.PA). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

ETB is traded in USD, while SGO.PA is traded in EUR. To make them comparable, the SGO.PA values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, ETB achieves a 4.96% return, which is significantly higher than SGO.PA's -12.46% return. Over the past 10 years, ETB has underperformed SGO.PA with an annualized return of 8.49%, while SGO.PA has yielded a comparatively higher 9.80% annualized return.

ETB

• 1D: -0.06%
• 1M: 1.02%
• YTD: 4.96%
• 6M: 5.97%
• 1Y: 20.11%
• 3Y*: 15.32%
• 5Y*: 7.63%
• 10Y*: 8.49%

SGO.PA

• 1D: -0.78%
• 1M: 0.73%
• YTD: -12.46%
• 6M: -8.95%
• 1Y: -20.34%
• 3Y*: 18.65%
• 5Y*: 7.67%
• 10Y*: 9.80%

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

ETB vs. SGO.PA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ETB Eaton Vance Tax-Managed Buy-Write Income Fund	4.96%	11.16%	26.22%	7.50%	-16.59%	23.68%	0.43%	32.40%	-12.75%	9.52%
SGO.PA Compagnie de Saint-Gobain S.A.	-12.46%	17.66%	23.88%	56.24%	-28.60%	57.34%	11.83%	27.78%	-37.62%	21.66%

Correlation

The correlation between ETB and SGO.PA is 0.35, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.35
Correlation (3Y) Calculated over the trailing 3-year period	0.31
Correlation (5Y) Calculated over the trailing 5-year period	0.33
Correlation (10Y) Calculated over the trailing 10-year period	0.30
Correlation (All Time) Calculated using the full available price history since May 24, 2007	0.35

Return for Risk

ETB vs. SGO.PA — Risk / Return Rank

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

ETB

ETB Risk / Return Rank: 44
ETB Sharpe Ratio Rank: 41
ETB Sortino Ratio Rank: 41
ETB Omega Ratio Rank: 42
ETB Calmar Ratio Rank: 36
ETB Martin Ratio Rank: 59

SGO.PA

SGO.PA Risk / Return Rank: 14
SGO.PA Sharpe Ratio Rank: 12
SGO.PA Sortino Ratio Rank: 13
SGO.PA Omega Ratio Rank: 14
SGO.PA Calmar Ratio Rank: 18
SGO.PA Martin Ratio Rank: 15

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.

ETB vs. SGO.PA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eaton Vance Tax-Managed Buy-Write Income Fund (ETB) and Compagnie de Saint-Gobain S.A. (SGO.PA). 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.

	ETB	SGO.PA	Difference
Sharpe ratio: Return per unit of total volatility	1.81	-0.64	+2.45
Sortino ratio: Return per unit of downside risk	2.61	-0.78	+3.39
Omega ratio: Gain probability vs. loss probability	1.34	0.91	+0.42
Calmar ratio: Return relative to maximum drawdown	2.20	-0.58	+2.78
Martin ratio: Return relative to average drawdown	11.57	-1.11	+12.68
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ETB vs. SGO.PA - Sharpe Ratio Comparison

The current ETB Sharpe Ratio is 1.81, which is higher than the SGO.PA Sharpe Ratio of -0.64. The chart below compares the historical Sharpe Ratios of ETB and SGO.PA, 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

	ETB	SGO.PA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.81	-0.64	+2.45
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.47	0.23	+0.24
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.47	0.31	+0.16
Sharpe Ratio (All Time) Calculated using the full available price history	0.41	0.06	+0.35

Drawdowns

ETB vs. SGO.PA - Drawdown Comparison

The maximum ETB drawdown since its inception was -51.09%, smaller than the maximum SGO.PA drawdown of -78.04%. Use the drawdown chart below to compare losses from any high point for ETB and SGO.PA.

Drawdown Indicators

	ETB	SGO.PA	Difference
Max Drawdown Largest peak-to-trough decline	-51.09%	-78.04%	+26.95%
Max Drawdown (1Y) Largest decline over 1 year	-9.16%	-34.71%	+25.55%
Max Drawdown (3Y) Largest decline over 3 years	-20.09%	-34.71%	+14.62%
Max Drawdown (5Y) Largest decline over 5 years	-23.43%	-53.03%	+29.60%
Max Drawdown (10Y) Largest decline over 10 years	-45.08%	-65.47%	+20.39%
Current Drawdown Current decline from peak	-0.77%	-25.89%	+25.12%
Average Drawdown Average peak-to-trough decline	-6.72%	-36.13%	+29.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.74%	18.26%	-16.52%

Volatility

ETB vs. SGO.PA - Volatility Comparison

The current volatility for Eaton Vance Tax-Managed Buy-Write Income Fund (ETB) is 2.57%, while Compagnie de Saint-Gobain S.A. (SGO.PA) has a volatility of 8.52%. This indicates that ETB experiences smaller price fluctuations and is considered to be less risky than SGO.PA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ETB	SGO.PA	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.57%	8.52%	-5.95%
Volatility (6M) Calculated over the trailing 6-month period	9.04%	24.14%	-15.10%
Volatility (1Y) Calculated over the trailing 1-year period	11.14%	31.70%	-20.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.26%	32.35%	-16.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.01%	31.18%	-13.17%

Dividends

ETB vs. SGO.PA - Dividend Comparison

ETB's dividend yield for the trailing twelve months is around 8.20%, more than SGO.PA's 2.86% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ETB Eaton Vance Tax-Managed Buy-Write Income Fund	8.20%	8.31%	8.21%	8.62%	9.63%	7.57%	8.64%	7.90%	9.64%	7.75%	7.85%	7.77%
SGO.PA Compagnie de Saint-Gobain S.A.	2.86%	2.53%	2.45%	3.00%	3.57%	2.15%	0.00%	3.64%	4.46%	2.74%	2.80%	1.56%

Frequently Asked Questions

Can I hold both ETB and SGO.PA in my portfolio?

ETB and SGO.PA have a correlation of 0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.