(Sharecast News) - London's FTSE 100 was flat at 10,820.78 in afternoon trade on Tuesday.

Miners Antofagasta, Glencore and Anglo American all rallied as copper prices hit a new all-time high.

Autotrader gained as Jefferies upgraded the stock to 'buy' from 'hold' and lifted the price target to 640p from 545p, saying it expects the company to lead the re-rating in the online classifieds sector.

"We see Autotrader as standing alongside Scout24 as a leader in the Agentic Future," the bank said. "Until the Deal Builder fiasco in late 2025, we had always argued that Autotrader's execution of its progressive vision was good.

"Accepting the failures around Deal Builder communication and commercial roll-out were the humbling aspect of our Jan-26 downgrade to 'hold'. But as we stand here, we see reasons to be more optimistic again."

On the downside, tech provider Computacenter reversed earlier gains to trade sharply lower despite saying that full-year earnings would be "significantly ahead" of forecasts after it almost doubled interim profits on the back of a strong performance in North America.

Pre-tax profit for the six months to 30 June rose 87% to £152.4m. The company now expects adjusted earnings to be at least £380m compared with a company compiled consensus of £341m.

Utilities were also under the cosh, with SSE, National Grid and United Utilities among the worst performers.

FTSE 100 - Risers

Antofagasta (ANTO) 4,135.00p 6.18%

Glencore (GLEN) 625.00p 3.48%

Anglo American (AAL) 4,329.00p 3.39%

Halma (HLMA) 3,760.00p 2.96%

Weir (WEIR) 2,802.00p 2.86%

Coca-Cola HBC AG (CDI) (CCH) 4,596.00p 2.54%

Autotrader Group (AUTO) 517.00p 2.14%

Spirax Group (SPX) 7,100.00p 1.79%

Airtel Africa (AAF) 353.20p 1.78%

Vodafone Group (VOD) 127.50p 1.71%

FTSE 100 - Fallers

Computacenter (CCC) 5,330.00p -4.49%

Games Workshop Group (GAW) 18,100.00p -1.63%

GSK (GSK) 1,808.50p -1.61%

Aviva (AV.) 714.20p -1.19%

Convatec Group (CTEC) 224.60p -1.15%

SSE (SSE) 2,375.00p -1.08%

National Grid (NG.) 1,137.50p -1.04%

United Utilities Group (UU.) 1,327.00p -1.04%

Kingfisher (KGF) 299.40p -0.99%

M&G (MNG) 356.60p -0.97%