(Sharecast News) - London's FTSE 100 was down 0.2% at 9,428.72 in afternoon trade on Thursday.

Tesco was the standout performer as it lifted its full-year guidance after a strong first half fuelled by the warm summer weather.

The supermarket giant said it now expects full-year group adjusted operating profit of between £2.9bn and £3.1bn, up from a previous range of between £2.7bn and £3.0bn.

3i Group was also up following a Bloomberg report that the private equity firm is considering exit options, including a possible sale of French IT maintenance provider Evernex. It was understood the sale of Evernex could be valued at €1.2bn to €1.5bn.

The shares were also boosted by an upgrade to 'buy' from 'neutral' at UBS.

Experian tumbled after US analytics software firm Fair Isaac announced the launch of a new program that could make US lenders less reliant on credit agencies.

Fair Isaac said on Wednesday that the 'FICO® Mortgage Direct License Program' will eliminate reliance on the three nationwide credit bureaus, giving tri-merge resellers the option to calculate and distribute FICO scores directly to their customers.

The news hit shares of Equifax and TransUnion, which closed down 11.1% and 7.1% respectively, on Wednesday.

The FICO score is used by lenders to help make credit risk decisions across the customer lifecycle.

A tri-merge credit report - also known as a three-bureau report - combines information from Equifax, Experian and TransUnion into a single report.

BT fell after a downgrade to 'underperform' at BNPP Exane.

SSE lost ground after saying it expects first-half profits to fall by up to a third, but guided to growth over the full year with the majority of annual earnings being delivered in the second half.

FTSE 100 - Risers

Tesco (TSCO) 448.50p 4.38%

3i Group (III) 4,292.00p 3.62%

Pershing Square Holdings Ltd NPV (PSH) 4,680.00p 2.14%

Metlen Energy & Metals (MTLN) 47.97p 2.07%

Croda International (CRDA) 2,816.00p 1.70%

ICG (ICG) 2,248.00p 1.54%

Rentokil Initial (RTO) 382.90p 1.46%

NATWEST GROUP (NWG) 534.40p 1.44%

London Stock Exchange Group (LSEG) 8,754.00p 1.37%

Lloyds Banking Group (LLOY) 84.54p 1.34%

FTSE 100 - Fallers

Experian (EXPN) 3,525.00p -4.08%

BT Group (BT.A) 184.90p -3.45%

SSE (SSE) 1,721.50p -2.55%

Centrica (CNA) 167.55p -1.90%

Flutter Entertainment (DI) (FLTR) 18,885.00p -1.90%

Land Securities Group (LAND) 586.50p -1.84%

WPP (WPP) 364.20p -1.78%

JD Sports Fashion (JD.) 100.10p -1.67%

British American Tobacco (BATS) 3,842.00p -1.64%

Ashtead Group (AHT) 4,965.00p -1.49%