Shares of FiEE surged after the company reported revenue growth and swung to a profit in the second quarter.
Shares were up 28% to $6.42 in after-hours trading on Friday. The stock closed up 1.6% at $5.00, up 56% this year.
The Japan-based technology company on Friday reported a profit of $2.1 million, or 14 cents a share, compared with a loss of $639,680, or 13 cents a share, a year earlier.
Revenue rose to $4.8 million, up from $44,993 a year prior.
"We delivered strong profitability in the first half of 2026, a remarkable turnaround from last year's net loss," Chief Executive Rafael Li said. "Our multi-line service lineup and acquisition integration drove notable gross margin expansion, validating our strategic transformation roadmap."