ATEYY vs. ACFN

Last updated Apr 1, 2026

Compare and contrast key facts about Advantest Corp DRC (ATEYY) and Acorn Energy, Inc. (ACFN).

Performance

ATEYY vs. ACFN - Performance Comparison

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

ATEYY vs. ACFN - Yearly Performance Comparison

	2026 (YTD)	2025
ATEYY Advantest Corp DRC	7.51%	65.02%
ACFN Acorn Energy, Inc.	12.58%	-16.16%

Fundamentals

Market Cap ATEYY : $99.02B ACFN : $43.15M
EPS ATEYY : $397.98 ACFN : $0.99
PE Ratio ATEYY : 0.34 ACFN : 17.22
PEG Ratio ATEYY : 0.01 ACFN : 0.01
PS Ratio ATEYY : 0.10 ACFN : 3.76
PB Ratio ATEYY : 0.15 ACFN : 5.23
Total Revenue (TTM) ATEYY : $1.04T ACFN : $11.48M
Gross Profit (TTM) ATEYY : $650.10B ACFN : $8.82M
EBITDA (TTM) ATEYY : $440.57B ACFN : $2.11M

Returns By Period

In the year-to-date period, ATEYY achieves a 7.51% return, which is significantly lower than ACFN's 12.58% return.

ATEYY

• 1D: 7.06%
• 1M: -21.51%
• YTD: 7.51%
• 6M: 35.13%
• 1Y: 207.75%
• 3Y*: 80.65%
• 5Y*: 42.72%
• 10Y*: 51.48%

ACFN

• 1D: 1.13%
• 1M: -19.32%
• YTD: 12.58%
• 6M: -40.56%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

Return for Risk

ATEYY vs. ACFN — Risk / Return Rank

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

ATEYY

ATEYY Risk / Return Rank: 95
ATEYY Sharpe Ratio Rank: 97
ATEYY Sortino Ratio Rank: 94
ATEYY Omega Ratio Rank: 92
ATEYY Calmar Ratio Rank: 96
ATEYY Martin Ratio Rank: 96

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. ACFN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Advantest Corp DRC (ATEYY) and Acorn Energy, Inc. (ACFN). 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.

	ATEYY	ACFN	Difference
Sharpe ratio Return per unit of total volatility	3.17	—	—
Sortino ratio Return per unit of downside risk	3.33	—	—
Omega ratio Gain probability vs. loss probability	1.42	—	—
Calmar ratio Return relative to maximum drawdown	6.03	—	—
Martin ratio Return relative to average drawdown	18.14	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	ATEYY	ACFN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.17	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.84	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.09	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.10	-0.08	+1.19

Correlation

The correlation between ATEYY and ACFN is 0.14, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

ATEYY vs. ACFN - Dividend Comparison

Neither ATEYY nor ACFN has paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
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%
ACFN Acorn Energy, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

ATEYY vs. ACFN - Drawdown Comparison

The maximum ATEYY drawdown since its inception was -56.48%, roughly equal to the maximum ACFN drawdown of -58.11%. Use the drawdown chart below to compare losses from any high point for ATEYY and ACFN.

Drawdown Indicators

	ATEYY	ACFN	Difference
Max Drawdown Largest peak-to-trough decline	-56.48%	-58.11%	+1.63%
Max Drawdown (1Y) Largest decline over 1 year	-33.24%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-56.48%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-56.48%	—	—
Current Drawdown Current decline from peak	-28.52%	-44.41%	+15.89%
Average Drawdown Average peak-to-trough decline	-14.27%	-29.05%	+14.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.04%	—	—

Volatility

Volatility by Period

	ATEYY	ACFN	Difference
Volatility (1M) Calculated over the trailing 1-month period	20.52%	—	—
Volatility (6M) Calculated over the trailing 6-month period	49.66%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	66.08%	100.20%	-34.12%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	51.00%	100.20%	-49.20%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	47.28%	100.20%	-52.92%

Financials

ATEYY vs. ACFN - Profitability Comparison

The chart below illustrates the profitability comparison between Advantest Corp DRC and Acorn Energy, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

ATEYY - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Advantest Corp DRC reported a gross profit of 172.77B and revenue of 278.75B. Therefore, the gross margin over that period was 62.0%.

ACFN - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Acorn Energy, Inc. reported a gross profit of 1.91M and revenue of 2.38M. Therefore, the gross margin over that period was 80.1%.

ATEYY - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Advantest Corp DRC reported an operating income of 115.56B and revenue of 278.75B, resulting in an operating margin of 41.5%.

ACFN - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Acorn Energy, Inc. reported an operating income of 279.00K and revenue of 2.38M, resulting in an operating margin of 11.7%.

ATEYY - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Advantest Corp DRC reported a net income of 80.13B and revenue of 278.75B, resulting in a net margin of 28.8%.

ACFN - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Acorn Energy, Inc. reported a net income of 1.07M and revenue of 2.38M, resulting in a net margin of 45.2%.