RETAILERS enjoyed a shares rally as investors cheered recovery efforts at Morrisons and Argos owner Home Retail Group.

Supermarkets were among the biggest gainers after Morrisons announced a deal for Ocado to help it with the rollout of its internet operation.

With a profits upgrade at Home Retail Group also spurring on blue chips, the wider FTSE-100 index regained ground lost yesterday to return above the 6500 barrier – rising 47.91 points, or 0.7%, to 6529.41.

Sterling was enjoying a sustained recovery, having slumped to a near-three year low against the US dollar earlier this week. The pound rose to 1.51 dollars and 1.16 euros.

Morrisons was one of the top flight's biggest risers, up 2%, or 4.6p, to 276.2p, as its Ocado deal fuelled the company's comeback hopes after it reported a 7% drop in profits to £879 million following a disappointing year for

Elsewhere in the top flight, Tesco was 10.4p higher at 386p and Marks & Spencer improved 12.6p to 371.6p.

Insurers were also doing well, with Prudential enjoying a second strong session in a row after yesterday's results showing a 25% leap in annual earnings buoyed its shares. It was up 30p to 1155p, a rise of 3%.

Outside the top flight, Home Retail Group surged 12%, or 16p, to 148.9p after it said full-year profits will be around £90m, compared with the City's consensus forecast of £84m.

This was after a further improvement in trading at Argos as like-for-like sales rose by a better-than-expected 5.2% in the eight weeks to March 2.

The tie-up with Morrisons meant Ocado's shares topped the FTSE-250 index risers' board as analysts speculated it could lead to a full tie-up between the firms. The shares were up 24%, or 32.6p, to 170p as Ocado also said it had maintained its recent trading momentum, with sales up 14.4% to £185.5m in the 12 weeks to February 24.

Trinity Mirror shares plunged as police arrested four current or former journalists at Mirror Group Newspapers, while annual results revealed a fall in full-year profits. The stock was 24.75p lower at 95.5p, off 21%.

However, cash-and-carry firm Booker rose 9p to 125p, after the Competition Commission provisionally cleared the company's takeover of Makro UK.

The top Footsie risers were Aggreko, up 126p to 1965p, BT, up 11.6p to 277.4p, and CRH, up 52p to 1540p.

The biggest fallers were Carnival, off 55p to 2430p, Rio Tinto, off 66p to 3311p, Evraz, down 4.7p at 246.3p, and Fresnillo, off 27p at 1457p.