* FTSE dips 0.1 pct
* Royal Bank of Scotland rises after first-half results
* Goldman pulls Vodafone lower; commodities under pressure
By Amanda Cooper
LONDON, Aug 8 (Reuters) - Britain's leading share index was little changed by midday on Friday, as gains in the banking sector after Royal Bank of Scotland's <RBS.L> results were offset by losses in the miners and index-heavyweight Vodafone <VOD.L>.
RBS was one of the top gainers on the FTSE 100 <
> after the company reported one of the largest losses in British corporate history, but the loss was not as large as many in the market had feared, which sent the stock up 3 percent.At 1043 GMT the FTSE 100 was down 7.4 points, or 0.1 percent at 5,470.9 after falling 0.2 percent on Thursday, but was on track for a 2 percent gain for the week.
The index is now down about 15 percent this year.
RBS posted a first-half loss of 691 million pounds ($1.35 billion) -- one of the biggest losses in UK corporate history, but smaller than expected -- after taking a 5.9 billion writedown on the value of risky assets. [
]"We continue to get news out of the banks that is perhaps not as terrible as some had feared, although you can look at it two ways. One way is the headline results are not as bad, but the outlooks given are really quite gloomy," said Investec UK strategist Roger Cursley.
"On a different day, the market could have put a different spin on these results, so in a sense we're trying to accentuate the positives a bit today," he said.
A Reuters poll of analysts gave an average forecast of a 1.2 billion pound loss for RBS.
Other banks to feature among FTSE 100 gainers included HSBC <HSBA.L>, which was the largest individual positive weight on the index, rising 1 percent, while Standard Chartered <STAN.L> was up 1 percent and HBOS <HBOS.L> was up 0.2 percent.
LOSS ON CARDS
"It was widely expected there would be a loss for RBS, although it is significantly less than some analysts were predicting," said Richard Hunter, head of UK equities at Hargreaves Lansdown Stockbrokers.
"It is one of those strange situations, and we saw it with Barclays <BARC.L> yesterday and is rather a sign of the times, that while the figures are bad they're not as bad as they could have been."
"That sort of perverse logic is the reason the shares have lifted," Hunter added. "If you had to scratch for a positive, you'd say it's one more set of credit writedowns out of the way which must get us somewhere nearer to potentially turning the corner."
In other financials, asset manager Schroders <SDR.L> was 1.5 percent lower after it said pretax profit in the first half of the year fell to 135.7 million pounds ($264.8 million) from 185.6 million pounds a year ago.
Thursday's decision by the Bank of England to leave benchmark UK rates at 5 percent reinforced the view among investors that the central bank is unlikely to tighten monetary policy again this year.
Although the economy is slowing, the prospect of steady policy is potentially supportive for interest-rate sensitive sectors such as financials and property stocks.
However, with concern about slowing U.S. consumer spending after a cautious sales forecast for world number one retailer Wal-Mart <WMT.N> on Thursday and a disappointing update from top insurer AIG <AIG.N>, the mood in financial markets was wary.
Heavyweight Vodafone <VOD.L> lost 1.7 percent after Goldman Sachs cut its rating to "neutral" and took the mobile phone group off its "conviction buy" list of preferred stocks.
Commodity stocks came under pressure, but gas producer BG Group <BG.L> bucked the trend to add 0.6 percent after it said it had made a material new oil discovery off the coast of Brazil. [
]But with U.S. crude prices <CLc1> falling 2 percent, BP <BP.L> and Shell <RDSa.L> lost 1.6 and 1.4 respectively.
Lonmin <LMI.L> was up 0.4 percent after the Financial Times said that M&G, the biggest shareholder in the London-based platinum producer, had rebuffed Xstrata's <XTA.L> hostile offer. Xstrata shares fell 1.9 percent.
British Airways <BAY.L> advanced 2.6 percent after the Daily Mail said the airline is planning to make an application early next week to the U.S. Department of Transport that could allow it to forge closer links with American Airlines <AMR.N>. (Additional reporting by Michael Taylor; Editing by Greg Mahlich)