(Sharecast News) - London's FTSE 100 was down 0.2% at 8,229.33 in afternoon trade on Friday.

Credit-checking firm Experian was the top gainer on the index for no apparent reason.

Vistry was in the red, having rallied a day earlier as it announced a further £130m share buyback and posted a 7% increase in first-half pre-tax profit.

In the half year to 30 June, adjusted pre-tax profit rose to £186.2m from £174m in the same period a year earlier, with total completions up 9.1% to 7,792. Vistry hailed "good demand" across its Partner Funded markets.

Revenue was 11.1% higher at £1.97bn.

Heavily-weighted miners were also on the back foot, with Anglo American, Antofagasta and Glencore all down.

FTSE 100 - Risers

Experian (EXPN) 3,661.00p 2.29%

CRH (CDI) (CRH) 6,460.00p 1.99%

Relx plc (REL) 3,546.00p 1.72%

AstraZeneca (AZN) 12,746.00p 1.64%

London Stock Exchange Group (LSEG) 10,245.00p 1.49%

Convatec Group (CTEC) 234.60p 1.47%

InterContinental Hotels Group (IHG) 7,600.00p 1.25%

Spirax Group (SPX) 7,380.00p 1.17%

Intermediate Capital Group (ICG) 2,092.00p 1.16%

3i Group (III) 3,111.00p 1.14%

FTSE 100 - Fallers

Vistry Group (VTY) 1,346.00p -5.87%

Burberry Group (BRBY) 614.40p -3.61%

B&M European Value Retail S.A. (DI) (BME) 424.60p -3.52%

Barratt Developments (BDEV) 492.90p -2.51%

Anglo American (AAL) 2,050.00p -2.47%

Antofagasta (ANTO) 1,669.00p -1.97%

Glencore (GLEN) 371.90p -1.96%

Associated British Foods (ABF) 2,248.00p -1.79%

Beazley (BEZ) 767.00p -1.67%

Shell (SHEL) 2,535.00p -1.53%