Apple, Oscar Health, and Eli Lilly stocks hit 52-week highs as investors respond to AI updates, revenue reaffirmation, and obesity drug trial results

Apple unveiled 'Siri AI,' a revamped assistant powered in part by Google Gemini technology, built to work across Apple devices and handle complex tasks including searching messages, emails and photos, and performing actions across applications. Apple stock reached an all-time high of $317.40 before ending Monday's session over 1% lower.

Oscar Health reaffirmed its 2026 revenue guidance of $18.7 billion to $19 billion, citing stable membership trends and favorable healthcare utilization patterns. Oscar Health stock hit a five-year high of $27.59 on Monday.

Eli Lilly reported positive late-stage trial results showing its oral GLP-1 medicine Foundayo (orforglipron) delivered stronger blood sugar control and greater weight reduction than competing treatments for Type 2 diabetes. Eli Lilly stock hit a record high of $1,182.73 and the company plans to seek U.S. regulatory approval for the drug as a Type 2 diabetes treatment before the end of the second quarter.