Antofagasta Shares - Weekly slide as copper pulls back

Antofagasta shares ended the week lower in London after a sharp Friday drop alongside weaker copper prices. The Chile-focused miner still targets 650,000-700,000 tonnes of copper output in 2026 and will update the market with Q2 production in mid-July.

Edited by ad hoc news Long-Term & Business-Model Desk. Verified prior to publication on 06/20/2026, 19:21 CET. Details in the imprint.

Antofagasta (GB0000456144) had a soft end to the trading week in London. Shares in the Chile-focused copper producer declined on Friday and finished the week down a few percent as copper prices retreated, according to recent market data.

What the latest move shows

Antofagasta shares closed on Friday at 3,912 pence in London, a one-day decline of 6.16%, according to recent quote data that also put the five-day performance at -3.26%. Marketscreener price overview

A separate market report noted that the 6.2% drop to 3,912 pence on Friday effectively erased earlier weekly gains and left the stock below the prior week’s 4,044-pence close, as copper prices eased after recent strength. Article on the weekly share move

Long-term view on the business

Against this backdrop, the longer-term investment case for Antofagasta hinges less on a single volatile session and more on the group’s ability to deliver stable copper volumes at competitive costs and to expand capacity in a disciplined way over the coming years.

The company has previously flagged a 2026 copper production target of 650,000-700,000 tonnes and plans to report second-quarter production figures on July 15, giving the market a fresh data point on how its Chilean operations are tracking against that medium-term ambition. Antofagasta investor information

How the company makes money

Antofagasta generates the bulk of its revenue from mining, processing and selling copper concentrate and cathodes from its Chilean operations, with by-product credits from molybdenum, gold and silver providing an additional earnings cushion when commodity cycles are less favorable.

Where the stock trades today

The shares of Antofagasta (GB0000456144) trade on the London Stock Exchange at 3,912 pence as of 06/19/2026, 17:45 BST.

Key facts on Antofagasta stock

• Company: Antofagasta plc
• ISIN: GB0000456144
• WKN: 867578
• Ticker: ANTO
• Venue: London Stock Exchange
• Price (as of 06/19/2026, 17:45 BST): 3,912 pence
• Market cap: 19,200,000,000 GBP (as of 06/19/2026)
• Sector / Industry: Materials / Copper mining
• Index membership: FTSE 100
• Next earnings date: 07/15/2026

This article was AI-assisted and editorially reviewed. Price and company data without warranty; prices and dates may change at short notice. No investment advice, no buy or sell recommendation. Trading securities involves risk up to total loss of capital.