ASTS vs. STX

Last updated Jun 13, 2026

ASTS (AST SpaceMobile, Inc.) and STX (Seagate Technology plc) are both stocks. Both are in the Technology sector — ASTS in Communication Equipment, STX in Computer Hardware. Over the past 5 years, ASTS returned 51.99%/yr vs 62.01%/yr for STX. At a 0.26 correlation, their price movements are largely independent.

Performance

ASTS vs. STX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AST SpaceMobile, Inc. (ASTS) and Seagate Technology plc (STX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ASTS achieves a 13.47% return, which is significantly lower than STX's 238.67% return.

ASTS

• 1D: -15.53%
• 1M: -1.51%
• YTD: 13.47%
• 6M: 7.44%
• 1Y: 114.78%
• 3Y*: 140.29%
• 5Y*: 51.99%
• 10Y*: —

STX

• 1D: 7.25%
• 1M: 17.04%
• YTD: 238.67%
• 6M: 225.10%
• 1Y: 640.98%
• 3Y*: 149.80%
• 5Y*: 62.01%
• 10Y*: 51.08%

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

ASTS vs. STX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ASTS AST SpaceMobile, Inc.	13.47%	244.22%	249.92%	25.10%	-39.29%	-31.73%
STX Seagate Technology plc	238.67%	225.26%	4.06%	69.12%	-51.42%	46.75%

Correlation

The correlation between ASTS and STX is 0.24, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.24
Correlation (3Y) Calculated over the trailing 3-year period	0.25
Correlation (5Y) Calculated over the trailing 5-year period	0.26
Correlation (All Time) Calculated using the full available price history since Apr 7, 2021	0.26

Fundamentals

Market Cap ASTS : $23.96B STX : $212.28B
EPS ASTS : -$1.84 STX : $10.58
PS Ratio ASTS : 257.48 STX : 19.01
PB Ratio ASTS : 9.00 STX : 193.86
Total Revenue (TTM) ASTS : $84.94M STX : $11.01B
Gross Profit (TTM) ASTS : -$22.93M STX : $4.57B
EBITDA (TTM) ASTS : -$536.80M STX : $2.59B

Return for Risk

ASTS vs. STX — Risk / Return Rank

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

ASTS

ASTS Risk / Return Rank: 77
ASTS Sharpe Ratio Rank: 77
ASTS Sortino Ratio Rank: 77
ASTS Omega Ratio Rank: 73
ASTS Calmar Ratio Rank: 81
ASTS Martin Ratio Rank: 77

STX

STX Risk / Return Rank: 99
STX Sharpe Ratio Rank: 100
STX Sortino Ratio Rank: 99
STX Omega Ratio Rank: 98
STX Calmar Ratio Rank: 100
STX Martin Ratio Rank: 100

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.

ASTS vs. STX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AST SpaceMobile, Inc. (ASTS) and Seagate Technology plc (STX). 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.

	ASTS	STX	Difference
Sharpe ratio: Return per unit of total volatility	1.17	10.19	-9.02
Sortino ratio: Return per unit of downside risk	1.99	6.34	-4.36
Omega ratio: Gain probability vs. loss probability	1.23	1.81	-0.58
Calmar ratio: Return relative to maximum drawdown	2.60	31.15	-28.55
Martin ratio: Return relative to average drawdown	5.06	90.13	-85.07

ASTS vs. STX - Sharpe Ratio Comparison

The current ASTS Sharpe Ratio is 1.17, which is lower than the STX Sharpe Ratio of 10.19. The chart below compares the historical Sharpe Ratios of ASTS and STX, 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

ASTS vs. STX - Drawdown Comparison

The maximum ASTS drawdown since its inception was -85.57%, roughly equal to the maximum STX drawdown of -88.74%. Use the drawdown chart below to compare losses from any high point for ASTS and STX.

Drawdown Indicators

	ASTS	STX	Difference
Max Drawdown Largest peak-to-trough decline	-85.57%	-88.74%	+3.17%
Max Drawdown (1Y) Largest decline over 1 year	-47.69%	-21.00%	-26.69%
Max Drawdown (3Y) Largest decline over 3 years	-70.66%	-40.00%	-30.66%
Max Drawdown (5Y) Largest decline over 5 years	-85.57%	-56.99%	-28.58%
Max Drawdown (10Y) Largest decline over 10 years	—	-56.99%	—
Current Drawdown Current decline from peak	-38.08%	-1.03%	-37.05%
Average Drawdown Average peak-to-trough decline	-40.51%	-26.44%	-14.07%
Ulcer Index Depth and duration of drawdowns from previous peaks	24.42%	7.24%	+17.18%

Volatility

ASTS vs. STX - Volatility Comparison

AST SpaceMobile, Inc. (ASTS) has a higher volatility of 41.20% compared to Seagate Technology plc (STX) at 19.61%. This indicates that ASTS's price experiences larger fluctuations and is considered to be riskier than STX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ASTS	STX	Difference
Volatility (1M) Calculated over the trailing 1-month period	41.20%	19.61%	+21.59%
Volatility (6M) Calculated over the trailing 6-month period	85.03%	50.59%	+34.44%
Volatility (1Y) Calculated over the trailing 1-year period	105.98%	64.18%	+41.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	109.52%	44.86%	+64.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	111.00%	42.27%	+68.73%

Dividends

ASTS vs. STX - Dividend Comparison

ASTS has not paid dividends to shareholders, while STX's dividend yield for the trailing twelve months is around 0.31%.

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%
STX Seagate Technology plc	0.31%	1.05%	3.27%	3.28%	5.32%	2.40%	4.21%	4.27%	6.53%	6.02%	6.60%	6.14%

Financials

Frequently Asked Questions

Can I hold both ASTS and STX in my portfolio?

ASTS and STX have a correlation of 0.24, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ASTS or STX?

ASTS has higher volatility (41.20%) compared to STX (19.61%). In terms of maximum drawdown, ASTS dropped -85.57% vs STX's -88.74%.

Which has better risk-adjusted returns?

STX currently has the higher Sharpe Ratio (10.19 vs 1.17), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.