ATEYY vs. ASTS

Last updated Jun 13, 2026

ATEYY (Advantest Corp DRC) and ASTS (AST SpaceMobile, Inc.) are both stocks. Both are in the Technology sector — ATEYY in Semiconductor Equipment & Materials, ASTS in Communication Equipment. Over the past 5 years, ATEYY returned 50.50%/yr vs 51.99%/yr for ASTS. At a 0.25 correlation, their price movements are largely independent.

Performance

ATEYY vs. ASTS - Performance Comparison

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

Returns By Period

In the year-to-date period, ATEYY achieves a 38.53% return, which is significantly higher than ASTS's 13.47% return.

ATEYY

• 1D: 4.13%
• 1M: 2.59%
• YTD: 38.53%
• 6M: 38.14%
• 1Y: 197.06%
• 3Y*: 71.51%
• 5Y*: 50.50%
• 10Y*: 52.65%

ASTS

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

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

ATEYY vs. ASTS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ATEYY Advantest Corp DRC	38.53%	122.70%	68.99%	111.43%	-33.43%	-0.07%
ASTS AST SpaceMobile, Inc.	13.47%	244.22%	249.92%	25.10%	-39.29%	-31.73%

Correlation

The correlation between ATEYY and ASTS is 0.32, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.32
Correlation (3Y) Calculated over the trailing 3-year period	0.24
Correlation (5Y) Calculated over the trailing 5-year period	0.25
Correlation (All Time) Calculated using the full available price history since Apr 7, 2021	0.25

Fundamentals

Market Cap ATEYY : $127.67B ASTS : $23.96B
EPS ATEYY : ¥520.21 ASTS : -$1.84
PS Ratio ATEYY : 17.92 ASTS : 257.48
PB Ratio ATEYY : 25.59 ASTS : 9.00
Total Revenue (TTM) ATEYY : ¥1.14T ASTS : $84.94M
Gross Profit (TTM) ATEYY : ¥736.09B ASTS : -$22.93M
EBITDA (TTM) ATEYY : ¥533.69B ASTS : -$536.80M

Return for Risk

ATEYY vs. ASTS — Risk / Return Rank

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

ATEYY

ATEYY Risk / Return Rank: 93
ATEYY Sharpe Ratio Rank: 95
ATEYY Sortino Ratio Rank: 91
ATEYY Omega Ratio Rank: 89
ATEYY Calmar Ratio Rank: 94
ATEYY Martin Ratio Rank: 94

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

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.

ATEYY vs. ASTS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Advantest Corp DRC (ATEYY) 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.

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.

	ATEYY	ASTS	Difference
Sharpe ratio: Return per unit of total volatility	2.87	1.17	+1.70
Sortino ratio: Return per unit of downside risk	3.15	1.99	+1.16
Omega ratio: Gain probability vs. loss probability	1.39	1.23	+0.16
Calmar ratio: Return relative to maximum drawdown	6.07	2.60	+3.47
Martin ratio: Return relative to average drawdown	16.34	5.06	+11.28

ATEYY vs. ASTS - Sharpe Ratio Comparison

The current ATEYY Sharpe Ratio is 2.87, which is higher than the ASTS Sharpe Ratio of 1.17. The chart below compares the historical Sharpe Ratios of ATEYY 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.

Drawdowns

ATEYY vs. ASTS - Drawdown Comparison

The maximum ATEYY drawdown since its inception was -56.48%, smaller than the maximum ASTS drawdown of -85.57%. Use the drawdown chart below to compare losses from any high point for ATEYY and ASTS.

Drawdown Indicators

	ATEYY	ASTS	Difference
Max Drawdown Largest peak-to-trough decline	-56.48%	-85.57%	+29.09%
Max Drawdown (1Y) Largest decline over 1 year	-33.24%	-47.69%	+14.45%
Max Drawdown (3Y) Largest decline over 3 years	-44.70%	-70.66%	+25.96%
Max Drawdown (5Y) Largest decline over 5 years	-56.48%	-85.57%	+29.09%
Max Drawdown (10Y) Largest decline over 10 years	-56.48%	—	—
Current Drawdown Current decline from peak	-11.76%	-38.08%	+26.32%
Average Drawdown Average peak-to-trough decline	-14.23%	-40.51%	+26.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.32%	24.42%	-12.10%

Volatility

ATEYY vs. ASTS - Volatility Comparison

The current volatility for Advantest Corp DRC (ATEYY) is 27.35%, while AST SpaceMobile, Inc. (ASTS) has a volatility of 41.20%. This indicates that ATEYY 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

	ATEYY	ASTS	Difference
Volatility (1M) Calculated over the trailing 1-month period	27.35%	41.20%	-13.85%
Volatility (6M) Calculated over the trailing 6-month period	55.16%	85.03%	-29.87%
Volatility (1Y) Calculated over the trailing 1-year period	70.37%	105.98%	-35.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	53.29%	109.52%	-56.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	48.58%	111.00%	-62.42%

Dividends

ATEYY vs. ASTS - Dividend Comparison

Neither ATEYY nor ASTS has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
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%
ATEYY Advantest Corp DRC	0.00%	0.11%	0.22%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	1.18%	1.24%

Financials

Frequently Asked Questions

Can I hold both ATEYY and ASTS in my portfolio?

ATEYY and ASTS have a correlation of 0.32, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ATEYY or ASTS?

ASTS has higher volatility (41.20%) compared to ATEYY (27.35%). In terms of maximum drawdown, ATEYY dropped -56.48% vs ASTS's -85.57%.

Which has better risk-adjusted returns?

ATEYY currently has the higher Sharpe Ratio (2.87 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.