South32 Ltd (ASX: S32) Stock: Buyback Shrinks Share Count, Hermosa Water Probe Grabs Headlines, and What to Watch This Week (Updated 14 Dec 2025)
South32 shares closed at A$3.56 on Friday, up from about A$3.31 at the start of December. The company completed its Cerro Matoso divestment in Colombia on December 1 and canceled over 3.3 million shares as part of an ongoing buyback. Market cap stood near A$16 billion last week. Board changes and scrutiny of the Hermosa project continue.