COA.L vs. ACFN

Last updated Jun 6, 2026

COA.L (Coats Group plc) and ACFN (Acorn Energy, Inc.) are both stocks. COA.L operates in Textile Manufacturing (Consumer Cyclical), while ACFN operates in Scientific & Technical Instruments (Technology). At a 0.03 correlation, their price movements are largely independent.

Performance

COA.L vs. ACFN - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in Coats Group plc (COA.L) and Acorn Energy, Inc. (ACFN). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

COA.L is traded in GBp, while ACFN is traded in USD. To make them comparable, the ACFN values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, COA.L achieves a -3.71% return, which is significantly lower than ACFN's 6.62% return.

COA.L

• 1D: -0.81%
• 1M: -5.39%
• YTD: -3.71%
• 6M: 0.08%
• 1Y: 5.70%
• 3Y*: 7.59%
• 5Y*: 6.49%
• 10Y*: 12.81%

ACFN

• 1D: -3.95%
• 1M: -16.06%
• YTD: 6.62%
• 6M: 6.20%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

COA.L vs. ACFN - Yearly Performance Comparison

	2026 (YTD)	2025
COA.L Coats Group plc	-3.71%	11.49%
ACFN Acorn Energy, Inc.	6.62%	-15.92%

Correlation

The correlation between COA.L and ACFN is 0.03, 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 (All Time) Calculated using the full available price history since Jul 25, 2025	0.03

Fundamentals

Market Cap COA.L : £1.59B ACFN : $39.95M
EPS COA.L : £0.10 ACFN : $0.78
PE Ratio COA.L : 7.85 ACFN : 20.51
PEG Ratio COA.L : 8.81 ACFN : 0.02
PS Ratio COA.L : 0.49 ACFN : 3.81
PB Ratio COA.L : 2.20 ACFN : 4.77
Total Revenue (TTM) COA.L : £2.97B ACFN : $10.61M
Gross Profit (TTM) COA.L : £1.07B ACFN : $8.27M
EBITDA (TTM) COA.L : £543.24M ACFN : $1.38M

Return for Risk

COA.L vs. ACFN — Risk / Return Rank

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

COA.L

COA.L Risk / Return Rank: 47
COA.L Sharpe Ratio Rank: 49
COA.L Sortino Ratio Rank: 43
COA.L Omega Ratio Rank: 43
COA.L Calmar Ratio Rank: 50
COA.L Martin Ratio Rank: 51

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.

COA.L vs. ACFN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Coats Group plc (COA.L) 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.

	COA.L	ACFN	Difference
Sharpe ratio: Return per unit of total volatility	0.19	—	—
Sortino ratio: Return per unit of downside risk	0.47	—	—
Omega ratio: Gain probability vs. loss probability	1.06	—	—
Calmar ratio: Return relative to maximum drawdown	0.34	—	—
Martin ratio: Return relative to average drawdown	0.75	—	—
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

	COA.L	ACFN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.19	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.20	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.37	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.41	-0.13	+0.53

Drawdowns

COA.L vs. ACFN - Drawdown Comparison

The maximum COA.L drawdown since its inception was -59.37%, roughly equal to the maximum ACFN drawdown of -56.79%. Use the drawdown chart below to compare losses from any high point for COA.L and ACFN.

Drawdown Indicators

	COA.L	ACFN	Difference
Max Drawdown Largest peak-to-trough decline	-59.37%	-56.79%	-2.58%
Max Drawdown (1Y) Largest decline over 1 year	-16.72%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-34.06%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-36.33%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-59.37%	—	—
Current Drawdown Current decline from peak	-18.75%	-47.20%	+28.45%
Average Drawdown Average peak-to-trough decline	-15.22%	-31.45%	+16.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.58%	—	—

Volatility

Volatility by Period

	COA.L	ACFN	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.07%	—	—
Volatility (6M) Calculated over the trailing 6-month period	21.62%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	29.30%	92.54%	-63.24%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	32.07%	92.54%	-60.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	34.22%	92.54%	-58.32%

Dividends

COA.L vs. ACFN - Dividend Comparison

COA.L's dividend yield for the trailing twelve months is around 3.08%, while ACFN has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
ACFN Acorn Energy, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
COA.L Coats Group plc	3.08%	2.82%	2.45%	2.64%	2.75%	1.99%	0.00%	1.77%	1.39%	1.10%

Financials

COA.L vs. ACFN - Profitability Comparison

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

COA.L - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Coats Group plc reported a gross profit of 281.44M and revenue of 763.15M. Therefore, the gross margin over that period was 36.9%.

ACFN - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Acorn Energy, Inc. reported a gross profit of 1.79M and revenue of 2.23M. Therefore, the gross margin over that period was 80.2%.

COA.L - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Coats Group plc reported an operating income of 113.54M and revenue of 763.15M, resulting in an operating margin of 14.9%.

ACFN - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Acorn Energy, Inc. reported an operating income of -129.00K and revenue of 2.23M, resulting in an operating margin of -5.8%.

COA.L - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Coats Group plc reported a net income of 44.31M and revenue of 763.15M, resulting in a net margin of 5.8%.

ACFN - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Acorn Energy, Inc. reported a net income of -77.00K and revenue of 2.23M, resulting in a net margin of -3.5%.

Frequently Asked Questions

Can I hold both COA.L and ACFN in my portfolio?

COA.L and ACFN have a correlation of 0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.