Acorn Energy, Inc. (ACFN) vs Aether Holdings, Inc. Common Stock (ATHR)

A side-by-side comparison of Acorn Energy, Inc. and Aether Holdings, Inc. Common Stock across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.

Compare
Acorn Energy, Inc. logo
ACFN
Acorn Energy, Inc.
$47M
$18.72TechnologyDelayed quote: Oct 5, 2026, 4:00 PM EDT
Aether Holdings, Inc. Common Stock logo
ATHR
Aether Holdings, Inc. Common Stock
$38M
$3.16TechnologyDelayed quote: Oct 5, 2026, 4:00 PM EDT

Total return — ACFN vs ATHR

growth of $100 · dividends reinvested · last 1y
ACFN +33.7% (+33.7%/yr)ATHR -45.0% (-45.0%/yr)ACFN compounded faster over this window
100200300Start $1002026$134$55
ACFN ATHR

ACFN vs ATHR: by the numbers

  • •ACFN is the larger company ($47M vs $38M market cap).
  • •ACFN is profitable (16.12% net margin) while ATHR runs a net loss (-378.47%).

Metrics side by side

Valuation

MetricACFNATHR
P/E ratio30.79N/A
PEG ratio0.23N/A
P/S ratio4.9128.52
P/B ratio5.3538.04
EV / EBITDA53.30N/A
FCF yield3.06%N/A

Profitability

MetricACFNATHR
Gross margin80.29%70.79%
Operating margin17.33%-235.53%
Net margin16.12%-378.47%
ROE17.59%-504.75%
ROIC6.66%-134.27%

Growth (annualized)

MetricACFNATHR
Revenue CAGR (5Y)8.27%N/A
EPS CAGR (5Y)136.36%N/A
FCF CAGR (5Y)27.76%N/A
Total return CAGR (5Y)14.29%N/A

Frequently asked

Is ACFN or ATHR more profitable?
ACFN runs the higher net margin — ACFN at 16.12% versus ATHR at -378.47%.

Go deeper

Full ACFN analysisFull ATHR analysisInteractive comparison tool

Dig into the metrics

Acorn Energy P/E ratioAcorn Energy ROEAether Holdings, Inc. Common Stock ROEAcorn Energy operating marginAether Holdings, Inc. Common Stock operating marginAcorn Energy revenue growthAether Holdings, Inc. Common Stock revenue growthAcorn Energy free cash flowAether Holdings, Inc. Common Stock free cash flow

Acorn Energy & Aether Holdings, Inc. Common Stock appear in these rankings

Highest 10-Year Total Return Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.