Sometimes a company just has a really, really good quarter. That appears to be the case for FTC Solar Inc. (FTCI), whose stock shot up dramatically on Wednesday after the solar-tracking systems provider reported third-quarter 2025 results that weren't just good—they were a blowout.

The numbers tell a story of a sharp rebound. Revenue jumped 156.8% year-over-year to $26.0 million, handily beating the $21.1 million analysts were expecting. Even the loss was better: an adjusted loss of 36 cents per share, compared to an estimated loss of 56 cents.

But perhaps the most encouraging sign was the return to profitability, at least on a key metric. The company's non-GAAP gross margin expanded to 7.7%, moving into positive territory for the first time since 2023. On a GAAP basis, gross profit was $1.6 million, a significant swing from a $3.9 million loss in the prior quarter. Adjusted EBITDA loss also improved dramatically, narrowing to $4.0 million from $12.2 million a year ago.

The good news wasn't confined to the income statement. The company was busy building its foundation for future growth. It secured a $75 million strategic financing facility, closing on the first $37.5 million tranche. It also announced a major 1-gigawatt tracker supply deal with Levona Renewables. When you add it all up, FTC Solar's contracted backlog—not even counting the new Levona deal—rose to $462 million.

In a strategic move to control more of its supply chain, the company agreed to acquire the remaining 55% interest in Alpha Steel, LLC for $2.7 million, giving it full ownership of the domestic steel manufacturer. And to top it all off, it ended the quarter with $24.4 million in cash, more than double the $11.2 million it had at the start of the year.

Looking ahead, management is feeling confident. For the fourth quarter, FTC Solar projects revenue between $30 million and $35 million, which is above the consensus estimate of $26.9 million. It also expects non-GAAP gross margin to land between 12.7% and 23.4%, with adjusted EBITDA ranging from a loss of $5.4 million to breakeven.

"Third quarter results came in above the high-end of our guidance ranges on nearly all metrics," said CEO Yann Brandt. "The company remains on a growth trajectory with quarterly revenue up nearly 160% year-over-year and at its highest level in eight quarters; operating income and adjusted EBITDA at the highest levels in 5 years."

Investors got the message loud and clear. In response to this sunny report, FTCI shares were trading higher by 33.06% on Wednesday.