Wheaton Secures Antamina Silver Stream in $4.3 Billion BHP Deal
Event summary
- Wheaton Precious Metals has finalized a silver stream agreement with BHP for the Antamina Mine in Peru, effective April 1, 2026.
- Under the agreement, Wheaton will initially purchase the equivalent of 33.75% of Antamina’s payable silver, transitioning to 22.5% for the life of the mine after 100 million ounces are delivered.
- Wheaton paid an upfront $4.3 billion and will pay 20% of the spot price of silver for the delivered ounces.
- The deal follows a previously announced agreement from February 16, 2026.
The big picture
This $4.3 billion transaction represents a significant investment for Wheaton, solidifying its position as a leading precious metals streaming company. The deal provides Wheaton with a long-term, low-cost silver supply, but also increases its exposure to commodity price volatility and BHP's operational performance. The agreement highlights the ongoing trend of mining companies seeking to monetize assets through streaming deals to fund exploration and development.
What we're watching
- Price Sensitivity
- Wheaton’s profitability is directly tied to silver prices, and the 20% of spot price payment structure creates a significant sensitivity to market fluctuations, potentially impacting future earnings.
- Operational Risk
- While Wheaton doesn't directly operate the Antamina mine, its revenue stream is dependent on BHP's operational efficiency and adherence to production targets, introducing a degree of counterparty risk.
- Acquisition Strategy
- The scale of this deal signals Wheaton’s continued appetite for large-scale streaming acquisitions, and the market will be watching to see if they can replicate this success with similarly sized opportunities.
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