SESG.PA vs. ASTS

Last updated Jun 5, 2026

SESG.PA (SES S. A.) and ASTS (AST SpaceMobile, Inc.) are both stocks. Both are in the Communication Services sector — SESG.PA in Broadcasting, ASTS in Telecom Services. Over the past 5 years, SESG.PA returned 14.76%/yr vs 64.40%/yr for ASTS. At a 0.09 correlation, their price movements are largely independent.

Performance

SESG.PA vs. ASTS - Performance Comparison

The chart below illustrates the hypothetical performance of a €10,000 investment in SES S. A. (SESG.PA) and AST SpaceMobile, Inc. (ASTS). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, SESG.PA achieves a 61.14% return, which is significantly higher than ASTS's 31.40% return.

SESG.PA

• 1D: 0.65%
• 1M: 11.74%
• YTD: 61.14%
• 6M: 61.43%
• 1Y: 83.63%
• 3Y*: 26.79%
• 5Y*: 14.76%
• 10Y*: -0.69%

ASTS

• 1D: -12.06%
• 1M: 35.04%
• YTD: 31.40%
• 6M: 27.95%
• 1Y: 201.39%
• 3Y*: 146.09%
• 5Y*: 64.40%
• 10Y*: —

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

SESG.PA vs. ASTS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
SESG.PA SES S. A.	61.14%	97.88%	-40.32%	6.35%	-7.48%	-4.13%	-34.35%	-27.58%
ASTS AST SpaceMobile, Inc.	31.40%	203.37%	273.02%	21.35%	-35.53%	-37.16%	26.25%	0.84%

Correlation

The correlation between SESG.PA and ASTS is 0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.08
Correlation (3Y) Calculated over the trailing 3-year period	0.08
Correlation (5Y) Calculated over the trailing 5-year period	0.11
Correlation (All Time) Calculated using the full available price history since Nov 4, 2019	0.09

Return for Risk

SESG.PA vs. ASTS — Risk / Return Rank

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

SESG.PA

SESG.PA Risk / Return Rank: 82
SESG.PA Sharpe Ratio Rank: 86
SESG.PA Sortino Ratio Rank: 80
SESG.PA Omega Ratio Rank: 82
SESG.PA Calmar Ratio Rank: 79
SESG.PA Martin Ratio Rank: 81

ASTS

ASTS Risk / Return Rank: 84
ASTS Sharpe Ratio Rank: 87
ASTS Sortino Ratio Rank: 83
ASTS Omega Ratio Rank: 78
ASTS Calmar Ratio Rank: 89
ASTS Martin Ratio Rank: 85

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.

SESG.PA vs. ASTS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SES S. A. (SESG.PA) and AST SpaceMobile, Inc. (ASTS). 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.

	SESG.PA	ASTS	Difference
Sharpe ratio: Return per unit of total volatility	1.85	1.95	-0.09
Sortino ratio: Return per unit of downside risk	2.35	2.48	-0.14
Omega ratio: Gain probability vs. loss probability	1.32	1.29	+0.03
Calmar ratio: Return relative to maximum drawdown	2.55	4.36	-1.81
Martin ratio: Return relative to average drawdown	6.92	8.68	-1.76
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SESG.PA vs. ASTS - Sharpe Ratio Comparison

The current SESG.PA Sharpe Ratio is 1.85, which is comparable to the ASTS Sharpe Ratio of 1.95. The chart below compares the historical Sharpe Ratios of SESG.PA and ASTS, 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

	SESG.PA	ASTS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.85	1.95	-0.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.39	0.58	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.02	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.20	0.40	-0.20

Drawdowns

SESG.PA vs. ASTS - Drawdown Comparison

The maximum SESG.PA drawdown since its inception was -83.72%, smaller than the maximum ASTS drawdown of -89.95%. Use the drawdown chart below to compare losses from any high point for SESG.PA and ASTS.

Drawdown Indicators

	SESG.PA	ASTS	Difference
Max Drawdown Largest peak-to-trough decline	-83.72%	-89.95%	+6.23%
Max Drawdown (1Y) Largest decline over 1 year	-31.23%	-46.48%	+15.25%
Max Drawdown (3Y) Largest decline over 3 years	-51.10%	-70.33%	+19.23%
Max Drawdown (5Y) Largest decline over 5 years	-59.24%	-86.38%	+27.14%
Max Drawdown (10Y) Largest decline over 10 years	-79.01%	—	—
Current Drawdown Current decline from peak	-45.03%	-28.88%	-16.15%
Average Drawdown Average peak-to-trough decline	-31.73%	-41.91%	+10.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.59%	23.31%	-11.72%

Volatility

SESG.PA vs. ASTS - Volatility Comparison

The current volatility for SES S. A. (SESG.PA) is 17.84%, while AST SpaceMobile, Inc. (ASTS) has a volatility of 41.08%. This indicates that SESG.PA experiences smaller price fluctuations and is considered to be less risky than ASTS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SESG.PA	ASTS	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.84%	41.08%	-23.24%
Volatility (6M) Calculated over the trailing 6-month period	29.17%	83.89%	-54.72%
Volatility (1Y) Calculated over the trailing 1-year period	42.99%	104.41%	-61.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	37.22%	111.19%	-73.97%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	39.57%	100.11%	-60.54%

Dividends

SESG.PA vs. ASTS - Dividend Comparison

SESG.PA's dividend yield for the trailing twelve months is around 5.84%, while ASTS has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ASTS AST SpaceMobile, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SESG.PA SES S. A.	5.84%	9.04%	24.53%	8.39%	8.21%	5.74%	5.18%	6.40%	4.79%	10.30%	6.21%	4.55%

Financials

Frequently Asked Questions

Can I hold both SESG.PA and ASTS in my portfolio?

SESG.PA and ASTS have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.