(Sharecast News) - London's FTSE 100 was up 0.7% at 8,124.50 in afternoon trade on Monday.

Croda shot to the top of the index as the specialty chemicals group left full-year constant-currency profit guidance unchanged after a solid third quarter, but said a stronger pound will hit the bottom-line results more than previously expected.

NatWest advanced as it repurchased £1bn of shares from the HM Treasury, taking the government's stake in the banking group to 11.4%.

The company said that it made an off-market purchase of 262.6m shares on Friday at a price of 380.8p, representing a 3.16% shareholding.

"This transaction represents another important milestone on the path to full privatisation," said chief executive Paul Thwaite.

Vistry was also in the black, having tumbled on Friday after the housebuilder warned on profits again.

Heavily-weighted mining stocks were in the red, with Rio Tinto, Anglo American and Glencore all down.

FTSE 100 - Risers

Croda International (CRDA) 3,790.00p 5.16%

Rolls-Royce Holdings (RR.) 570.40p 3.11%

NATWEST GROUP (NWG) 392.20p 2.99%

Sage Group (SGE) 1,072.50p 2.98%

Smith & Nephew (SN.) 943.00p 2.77%

Barclays (BARC) 258.35p 2.72%

Intermediate Capital Group (ICG) 2,244.00p 2.47%

Vistry Group (VTY) 756.00p 2.44%

Airtel Africa (AAF) 98.40p 2.39%

Entain (ENT) 765.20p 2.30%

FTSE 100 - Fallers

Sainsbury (J) (SBRY) 245.80p -1.36%

Imperial Brands (IMB) 2,339.00p -1.18%

Rio Tinto (RIO) 4,889.50p -1.14%

Anglo American (AAL) 2,348.00p -1.01%

Glencore (GLEN) 390.90p -0.99%

Fresnillo (FRES) 694.50p -0.79%

Antofagasta (ANTO) 1,678.50p -0.62%

Shell (SHEL) 2,554.00p -0.41%

Marks & Spencer Group (MKS) 373.10p -0.37%

Tesco (TSCO) 344.50p -0.20%