Health care stocks rose premarket Wednesday as the iShares Biotechnology ETF (IBB) advanced by 0.3% and the Health Care Select Sector SPDR Fund (XLV) was up 0.2% recently.

Halozyme Therapeutics (HALO) shares were over 4% higher after the company raised its 2025 adjusted earnings per share and revenue guidance driven by higher royalty revenue and increased product sales from its Xyosted treatment.

Boston Scientific (BSX) shares were up more than 3% after the company said it has agreed to acquire the shares of Bolt Medical that it does not already own for $443 million in addition to milestone payments.

Absci (ABSI) shares rallied by over 36% after the company said it has entered into a strategic collaboration with Advanced Micro Devices (AMD) to deploy AMD Instinct accelerators and ROCm software to power AI drug discovery workloads, including Absci's advanced de novo antibody design models.