Sharecast - Gold miner Endeavour was the standout gainer on the index as gold prices were boosted by a flight to safety.
Mondi (LON:MNDI) and Hargreaves Lansdown (LON:HRGV) were also in the black, having fallen a day earlier on the back of updates.
Rentokil Initial (LON:RTO) was under the cosh for the second day in a row, after saying on Thursday that its full-year performance in North America was set to be "marginally below" its previous expectations, citing "near-term market uncertainty".
InterContinental Hotels Group fell after it reported a big slowdown in RevPAR - a key performance measure used in the hospitality industry - in the third quarter as growth softened across all regions. However, the group said it still expects a "very strong financial performance" this year.
HSBC was knocked lower by a downgrade to ‘market perform’ at KBW.
FTSE 100 - Risers
Endeavour Mining (EDV (LON:EDV)) 1,735.00p 2.91%
Convatec Group (CTEC (LON:CTEC)) 200.40p 2.14%
BAE Systems (LON:BAES) (BA.) 1,062.00p 2.07%
Mondi (MNDI) 1,264.50p 1.00%
GSK (GSK) 1,465.20p 0.96%
Hargreaves Lansdown (HL.) 698.40p 0.90%
London Stock Exchange Group (LON:LSEG) 8,276.00p 0.61%
Fresnillo (LON:FRES) 549.00p 0.48%
St James's Place (STJ) 638.20p 0.44%
Burberry Group (LON:BRBY) 1,729.00p 0.41%
FTSE 100 - Fallers
Rentokil Initial (RTO) 454.70p -6.03%
Anglo American (JO:AGLJ) (AAL) 2,071.50p -3.92%
InterContinental Hotels Group (IHG (LON:IHG)) 5,928.00p -3.67%
Ocado Group (LON:OCDO) 484.30p -3.56%
WPP (LON:WPP) 679.80p -3.05%
HSBC Holdings (LON:HSBA) 622.20p -2.96%
B&M European Value Retail S.A. (DI) (BME) 539.80p -2.56%
IMI (LON:IMI) 1,477.00p -2.51%
Spirax-Sarco Engineering (SPX) 8,174.00p -2.50%
JD Sports Fashion (JD.) 126.75p -2.50%