Canadian Solar (NASDAQ: CSIQ) shares soared 7.02% in pre-market trading on Thursday following the release of its first-quarter 2025 results and second-quarter guidance. The solar and battery company's stock climbed despite reporting a net loss for Q1, as investors focused on the upbeat revenue forecast for the upcoming quarter.

For the first quarter, Canadian Solar reported a net loss of $34 million, or $0.69 per share, compared to a profit of $12.4 million in the same period last year. The company cited the impact of tariffs and other factors for the loss. However, Q1 revenue came in at $1.2 billion, surpassing analysts' expectations of $1.096 billion.

The primary driver behind the stock's pre-market rally appears to be the company's optimistic Q2 outlook. Canadian Solar expects total revenue for the second quarter to be in the range of $1.9 billion to $2.1 billion, significantly above analysts' estimates of $1.76 billion. This strong guidance has overshadowed the company's more conservative full-year 2025 revenue forecast of $6.1 billion to $7.1 billion, which falls short of the $7.3 billion analysts were expecting.