(Sharecast News) - London's FTSE 100 was up 0.6% at 10,548.49 in afternoon trade on Wednesday.

Metlen Energy & Metals and Chilean miner Antofagasta both gained as copper prices rose.

Testing and inspection specialist Intertek was in the black, having tumbled on Tuesday after its annual results.

Engineering firm Weir Group slid despite in-line full-year results. RBC Capital Markets noted softer 2026 guidance driven by higher spending on a new company-wide IT system, which it said will weigh slightly on margins.

Panmure Liberum said the company's 2026 guidance implies slightly softer organic growth and margins than consensus, likely leading to a 2% to 3% downgrade to earnings forecasts.

Oil giants BP and Shell gushed lower following recent gains, as oil prices came off highs.

Barratt Redrow lost ground as it said long-standing chief executive David Thomas will step down after more than a decade.

Thomas, who was appointed chief executive in 2015, is retiring after 17 years with the blue chip. He will be replaced by Dean Banks, the current chief executive of Australian infrastructure services provider Ventia.

FTSE 100 - Risers

Metlen Energy & Metals (MTLN) 35.00p 4.23%

Informa (INF) 806.80p 3.72%

Intertek Group (ITRK) 4,014.00p 3.71%

Antofagasta (ANTO) 4,047.00p 3.70%

Flutter Entertainment (DI) (FLTR) 8,414.00p 3.64%

Rolls-Royce Holdings (RR.) 1,337.00p 2.76%

JD Sports Fashion (JD.) 76.32p 2.55%

Next (NXT) 13,280.00p 2.55%

Imperial Brands (IMB) 3,274.00p 2.47%

Standard Life (SDLF) 730.50p 2.38%

FTSE 100 - Fallers

Weir Group (WEIR) 3,080.00p -9.47%

BP (BP.) 483.25p -2.08%

Autotrader Group (AUTO) 461.30p -1.93%

The Sage Group (SGE) 829.60p -1.82%

Bunzl (BNZL) 2,180.00p -1.53%

Shell (SHEL) 3,078.00p -1.27%

BT Group (BT.A) 205.80p -1.25%

Barratt Redrow (BTRW) 334.30p -1.21%

DCC (CDI) (DCC) 4,790.00p -1.16%

Persimmon (PSN) 1,362.50p -0.80%