Tesco, the UK's biggest supermarket, dragged the FTSE 100 stock index down on 22 April, after the retailer reported one of the biggest losses in corporate history.

The supermarket reported £6.4bn (€8.9bn, $9.6bn) pre-tax losses, a huge amount that caused the supermarket's shares to fall 5.2% over the day's trading.

Tesco's stock price is still well up in 2015 but it remains 35% lower than it was at the start of 2014. The Footsie slipped 0.5% overall, closing on 7,028.24 points.

Among the big risers was Rolls Royce Holdings, which gained 4.1%, while AB Foods bounced back from a poor day on 21 April, rising 1.2% a day later.

FTSE 100 biggest risers

Rolls Royce Holdings Plc +41.00 (+4.07%) 1,048.00
Travis Perkins +55.00 (+2.72%) 2,074.00
Rio Tinto plc +51.50 (+1.83%) 2,863.50
Hikma Pharmaceuticals +38.00 (+1.81%) 2,135.00
BHP Billiton plc +20.00 (+1.37%) 1,483.00

FTSE 100 biggest fallers

Tesco plc -12.10 (-5.15%) 222.65
Morrison (Wm) Supermarkets -8.10 (-4.08%) 190.40
Sainsbury (J) plc -10.20 (-3.73%) 263.00
Sports Direct Intl Plc -22.00 (-3.37%) 631.00
Hargreaves Lansdown plc -36.00 (-2.92%) 1,198.00