Oscar Health, Inc. (OSCR) shares tumbled 5.40% in pre-market trading on Thursday following the release of its third-quarter financial results for 2025. The health insurance technology company reported figures that fell short of analyst expectations, triggering a sell-off among investors.

According to the company's announcement, Oscar Health posted Q3 revenue of $2,985.984 million, missing the IBES estimate of $3,088 million. The adjusted EBITDA came in at a loss of $101.453 million, worse than the expected loss of $96.1 million. Net income for the quarter was reported at a loss of $137.45 million, while operating expenses surged to $3,115.234 million.

Despite the disappointing quarterly results, Oscar Health stated that it is reaffirming its guidance for the full year 2025. This decision to maintain its outlook may provide some reassurance to long-term investors, but the immediate market reaction suggests that concerns about the company's current performance are outweighing future projections. As trading continues, investors will be closely watching for any additional insights or commentary from management regarding the company's strategy to improve its financial metrics.