Core Insights - Guardant Health Inc. shares increased over 25% to $90 in premarket trading following strong financial results for Q3 2025 and an upward revision of its full-year outlook [1][3][4] Financial Performance - For Q3 2025, revenue reached $265.2 million, marking a 39% increase from $191.5 million in Q3 2024, primarily due to a 40% year-over-year growth in Oncology test volume [3] - The non-GAAP net loss for Q3 2025 narrowed to $48.3 million or $0.39 per share, compared to a loss of $55.0 million or $0.45 per share in the same quarter last year [3] Future Outlook - The company now anticipates full-year 2025 revenue between $965 million and $970 million, an increase from the previous guidance of $915 million to $925 million [4] Product Offerings - Guardant Health provides several tests including the Guardant360 Liquid test, Guardant360 CDx test, Guardant Reveal blood test, and Guardant360 Response blood test, which are designed for various cancer diagnostics and monitoring [2] - The company also introduced Shield, a blood-based screening test for colorectal cancer, which is now available through a collaboration with Quest Diagnostics [5] Stock Performance - Over the past year, Guardant Health's stock has fluctuated between $21.85 and $73.31, closing at $72.27, up 3.87% prior to the recent surge [6]