3 earlier Form 4 trades (code P or S) here by this insider (3 buys), the last on Aug 15, 2025.
+23.6% median (+18.7% mean) 90-day return after 3 previous buys.
The trade is 18.4% of the 1,421,219 shares held after it.
No other insider bought within 30 days.
9 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer Huang Chiao Chieh bought about $600.0K of EFOI on Nov 26, 2025, the largest insider purchase at the company on our record; 9 funds added in the latest 13F quarter.
2 earlier Form 4 trades (code P or S) here by this insider (2 buys), the last on Jun 23, 2025.
+16.2% median (+16.2% mean) 90-day return after 2 previous buys.
The trade is 22.8% of the 1,159,210 shares held after it.
No other insider bought within 30 days.
9 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer Huang Chiao Chieh bought about $500.0K of EFOI on Aug 15, 2025, the largest insider purchase at the company on our record; 9 funds added in the latest 13F quarter.
First Form 4 purchase or sale (code P or S) here by this insider on our record.
The trade is 13.2% of the 784,163 shares held after it.
No other insider bought within 30 days.
9 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer Huang Chiao Chieh bought about $200.0K of EFOI on Mar 27, 2025, the largest insider purchase at the company on our record; 9 funds added in the latest 13F quarter.
First Form 4 purchase or sale (code P or S) here by this insider on our record.
The trade is 11.4% of the 26,400 shares held after it.
2 other insiders bought within 30 days.
9 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Politziner Philip bought about $10.1K of EFOI on Aug 25, 2021; 2 other insiders bought within 30 days and 9 funds added in the latest 13F quarter.
7 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$6.5M
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM EFOI
FY Dec 2025
$3.6M
FY Dec 2024
$4.9M
FY Dec 2023
$5.7M
FY Dec 2022
$6.0M
FY Dec 2021
$9.9M
Jun 2026
$3.7M
Mar 2026
$949.0K
Dec 2025
$975.0K
Sep 2025
$826.0K
Jun 2025
$1.1M
Mar 2025
$616.0K
Dec 2024
$1.3M
Sep 2024
$1.2M
At each fiscal year end
Single quarter
Net margin, TTM
-23.4%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM EFOI
FY Dec 2025
-28.1%
FY Dec 2024
-32.6%
FY Dec 2023
-75.1%
FY Dec 2022
-172.2%
FY Dec 2021
-79.9%
Jun 2026
-23.4%
Mar 2026
-14.8%
Dec 2025
-33.7%
Sep 2025
-20.8%
Jun 2025
-20.2%
Mar 2025
-43.5%
Dec 2024
-23.0%
Sep 2024
-26.4%
At each fiscal year end
Single quarter
Free cash flow, TTM
-$1.7M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM EFOI
FY Dec 2025
-$1.5M
FY Dec 2024
-$1.3M
FY Dec 2023
-$2.5M
FY Dec 2022
n/a
FY Dec 2021
-$10.2M
Jun 2026
-$819.0K
Mar 2026
$69.0K
Dec 2025
-$858.0K
Sep 2025
-$104.0K
Jun 2025
-$215.0K
Mar 2025
-$277.0K
Dec 2024
-$254.0K
Sep 2024
-$286.0K
At each fiscal year end
Single quarter
Debt to equity
0.27x
current debt only, 2026-06-30; equity 2026-06-30
Debt to equity EFOI
FY Dec 2025
0.00x
FY Dec 2024
0.00x
FY Dec 2023
0.58x
FY Dec 2022
n/a
FY Dec 2021
0.48x
Jun 2026
0.27x
Mar 2026
0.00x
Dec 2025
0.00x
Sep 2025
0.00x
Jun 2025
0.00x
Mar 2025
0.00x
Dec 2024
0.00x
Sep 2024
0.00x
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
-1.83x
TTM operating cash flow over current debt only, 2026-06-30
Cash flow to debt EFOI
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
-1.38x
FY Dec 2022
-1.37x
FY Dec 2021
-3.25x
Jun 2026
-1.83x
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
-49.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity EFOI
FY Dec 2025
-28.5%
FY Dec 2024
-53.0%
FY Dec 2023
-333.6%
FY Dec 2022
-358.7%
FY Dec 2021
-150.7%
Jun 2026
-49.3%
Mar 2026
-25.6%
Dec 2025
-28.5%
Sep 2025
-30.4%
Jun 2025
-35.0%
Mar 2025
-47.2%
Dec 2024
-53.0%
Sep 2024
-60.2%
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
-23.5%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets EFOI
FY Dec 2025
-18.7%
FY Dec 2024
-20.0%
FY Dec 2023
-45.9%
FY Dec 2022
-89.8%
FY Dec 2021
-58.9%
Jun 2026
-23.5%
Mar 2026
-15.3%
Dec 2025
-18.7%
Sep 2025
-16.6%
Jun 2025
-18.7%
Mar 2025
-22.3%
Dec 2024
-20.0%
Sep 2024
-27.0%
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
tax provision or pre-tax income not filed for the four quarters
Return on invested capital EFOI
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
FY Dec 2022
n/a
FY Dec 2021
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
-48.7%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed EFOI
FY Dec 2025
-27.8%
FY Dec 2024
-52.5%
FY Dec 2023
-180.5%
FY Dec 2022
-273.9%
FY Dec 2021
-157.2%
Jun 2026
-48.7%
Mar 2026
-25.4%
Dec 2025
-27.8%
Sep 2025
-28.2%
Jun 2025
-32.8%
Mar 2025
-43.1%
Dec 2024
-52.5%
Sep 2024
-56.2%
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
n/a
fewer than four consecutive quarters of diluted EPS
P/E, trailing EFOI
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
FY Dec 2022
n/a
FY Dec 2021
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
$23.8M
market value at close 2026-10-26 on 2026-08-11 shares, plus current debt only, 2026-06-30, minus cash 2026-06-30
Enterprise value EFOI
FY Dec 2025
$12.2M
FY Dec 2024
$5.7M
FY Dec 2023
$6.3M
FY Dec 2022
$26.3M
FY Dec 2021
$152.4M
Jun 2026
$20.6M
Mar 2026
$11.0M
Dec 2025
$12.2M
Sep 2025
$14.3M
Jun 2025
$12.6M
Mar 2025
$9.2M
Dec 2024
$5.7M
Sep 2024
$5.4M
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
-7.1%
TTM free cash flow over market value at close 2026-10-26
FCF yield EFOI
FY Dec 2025
-11.0%
FY Dec 2024
-21.0%
FY Dec 2023
-38.2%
FY Dec 2022
n/a
FY Dec 2021
-6.7%
Jun 2026
-8.2%
Mar 2026
-9.2%
Dec 2025
-11.0%
Sep 2025
-5.6%
Jun 2025
-7.9%
Mar 2025
-15.9%
Dec 2024
-21.0%
Sep 2024
-18.7%
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
fewer than four consecutive quarters of diluted EPS
PEG, trailing EFOI
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
FY Dec 2022
n/a
FY Dec 2021
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
EFOI ranks highest on risk and compliance (48th percentile) and financial health (35th), and lowest on growth (6th), among Industrials peers.
Profitability
13
Inputs
Return on equity-49.3% · 11 pct, sector of 198
Return on assets-23.5% · 17 pct, sector of 224
Return on invested capitaltax provision or pre-tax income not filed for the four quarters
Return on capital employed-48.7% · 10 pct, sector of 195
Financial health
35
Inputs
Debt to equity0.27x · 64 pct, sector of 215
Cash flow to debt-1.83x · 7 pct, sector of 173
Growth
6
Inputs
Revenue growth, YoY-26.7% · 6 pct, sector of 255
Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Institutional and government
8
Inputs
Funds adding, latest quarter9 · 8 pct, sector of 200
Congress net buyers, 365dno Congress trades in 365 days
Federal contracts, 180dno federal contracts in 180 days
Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
48
Inputs
Short interest, % of float+3.6% · 55 pct, sector of 271
Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
New text in Risk Factors, latest 10-K+13.3% · 42 pct, sector of 197
2 not measured: Insider conviction, US patents
Insider conviction needs 1 of 2 inputs, 0 present: no Form 4 purchase or sale (code P or S) in 180 days; no insider trades in 180 days
US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet
5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
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