Updates from Sainsbury's, TalkTalk and Barratt

A 20-point fall for the FTSE 100 on Tuesday taking it to 6,275.2. AngloAmerican and Wolseley saw the deepest falls, down 4.7% and 4.6% respectively (to 491.75p and 3630p). Glencore and Burberry also saw heavy selling, down 4.2% and 4%. However Experian shares surged more than 7.5% to 1187p on better revenues growth. Vodafone shares were also up strongly, climbing almost 3.9%.

Slightly better numbers from the Dow Jones, breaking a multi-day slump, up 27 points with Visa and UnitedhealthGroup both rising more than 2%.

We start with better news from TalkTalk. Boss Dido Harding claims the cost of the cyber attack on the company has come in at £30-£35m. Significantly fewer customers were affected than feared. Total revenues for the six months to 30 September are up 4.7% to £912m.

TalkTalk claims it's also on track to deliver full year 2016 numbers in line with current market expectations pre-cyber attack impact while its interim dividend is hiked 15% to 5.29p (H1 FY15: 4.60p).

"We have delivered H1 results in line with our plan," says the company, "and revenue growth accelerated strongly through the second quarter. We have a robust plan to deliver a significant step-up in profits in H2."

Next, Sainsbury's has admitted an underlying 17.9% profits drop to £308m for the 28 weeks to 26 September. Like-for-like sales, ex fuel, have stumbled 1.6% overall. Sainsbury's overall market share dips 17 basis points to 16.5%.

Underlying basic earnings per share are down 17.2% to 12p (2014/15: 14.5p). However convenience stores delivered sales growth of nearly 11%. Groceries online saw sales growth of 7%, with orders up nearly 14%.

"We now expect savings of around £225 million by the end of this financial year," said boss Mike Coupe in a statement, "and we are on track to deliver our target of £500 million cost savings over the next three years."

We finish with bricks and mortar and a trading update from Barratt. Net private reservations per week increased 12.5% to 261 (2014: 232) for the 19 weeks to 8 November with a sales rate of 0.70 (2014: 0.63) net private reservations.

Total forward sales are up by 20.7% to £2,499.7m (2014: £2,071.7m). Operationally there is good control of input costs and continued land investment claims Barratt.

"The outlook is positive," says chief exec David Thomas, "and we are driving towards our FY17 targets of at least a 20% gross margin and at least a 25% return on capital employed."