Acorn Energy PE ratio ACFN

Share price divided by earnings per share over the last twelve months, since 2021.

Today, Oct 23, 2026: 28.3×
5-year median: 54.0×
Against its 5-year history: 32nd; percentile: 0 is its lowest day, 100 its highest
5-year range: 10.1× to 66.0×
Peer median: 26.9×

Acorn Energy's PE ratio is 28.3× as of Oct 23, 2026: a share price of $17.24 against $0.61 of earnings per share over the last twelve months.

That is below its 5-year median of 54.0×, lower than on 68% of days in the last 5 years.

Over that time it ranged from 10.1× in Sep 2025 to 66.0× in Sep 2021.

The median for 10 industrial stocks of a similar size is 26.9×.

PE ratio over time

Open the interactive chart, with overlays and comparisons

Year by year

Year	End of year	Low	High
2026 so far	28.3×	17.4×	36.4×
2025	10.4×	10.1×	10.8×
2024	n/m a value too high to mean anything
2023	n/m a value too high to mean anything
2022	54.0×	49.0×	61.0×
2021	63.0×	54.0×	66.0×

Against its peers

Companies in Industrials nearest Acorn Energy's size, closest first, today.

Company	PE ratio
ACFNAcorn Energy	28.3×
MAMOMassimo	9.5×
AERTAeries Technology	14.2×
CVUCPI Aerostructures	17.4×
MHHMastech Digital	37.4×
SIFSifco Industries	31.5×
LCUTLifetime Brands	5.9×
CMTCore Molding Technologies	26.9×
FCFranklin Covey	110×
HQIHireQuest	28.4×
HDSNHudson Technologies	26.9×
Peer median	26.9×

Where Acorn Energy ranks

#15of 23Engineering and Construction stocks with the lowest PE ratio

What the PE ratio tells you

Share price divided by earnings per share over the last twelve months. It is the price tag on a dollar of profit: 20× means you pay $20 for $1 of yearly earnings.

Blank while earnings are negative. A very low PE can mean the market expects profits to fall, so read it with growth and the company's own history.

More on Acorn Energy

Valuation data, not investment advice. Prices as of Oct 23, 2026. Reported figures come from the company's filings with the SEC.