Shares of NexGen Energy Ltd. (NXE) tumbled 5.60% in pre-market trading on Thursday following the release of its disappointing third-quarter earnings report. The uranium development company reported a wider-than-expected loss, catching investors off guard and triggering a sell-off.

NexGen Energy posted a Q3 loss of 0.23 Canadian dollars ($0.16) per diluted share, significantly wider than the CA$0.02 loss reported in the same quarter last year. This figure fell far short of analysts' expectations, as FactSet's consensus estimate had projected a much smaller loss of CA$0.03 per share. The substantial gap between the actual results and market forecasts likely contributed to the sharp decline in the company's stock price.

The company did not report any revenue for the quarter ended September 30, which is not unusual for development-stage uranium companies. However, the expanded loss without corresponding revenue growth may have raised concerns among investors about NexGen's financial position and its progress towards bringing its uranium projects to production. As the market digests this earnings surprise, investors will be closely watching for any updates on the company's development timeline and cost management strategies in the coming days.