London has shrugged off an early dip and is now making progress again following on Wall Street's rise last night on the back of good US company earnings.Banks are likely to be a focus for most of the day as the results of the European stress tests are unveiled. There is some confusion over exactly when the results will be known but late afternoon looks favourite. Standard Chartered and HSBC are lower today.Mobile phone network operator Vodafone returned to organic revenue growth in the April to June quarter of 2010 for the first time since the near global recession. Group revenue increased by 4.8% to £11.3bn and group service revenue increased by 4.9% to £10.6bn. United Utilities says current trading reflects lower prices for 2010/11, revenue pressures from reduced water volumes, bad debt and anticipated rise in property rates. However, the firm, which revealed a drop in full-year profits in May due to high borrowing costs, said these negatives are being partly offset by a drop in power costs.Bumper figures from Microsoft to follow those from Apple suggests business is good for chip designer ARM, which is the top performer this morning so far. Britvic saw revenue increase by 16.2% from a year earlier to £289.5m in its third quarter. The underlying GB, International and Irish businesses saw a combined revenue increase of 6.9%. BP has temporarily suspended relief well activities at the MC252 well site in the Gulf of Mexico due to "potentially adverse weather" linked to Tropical Storm Bonnie.Asia-focused oil and gas exploration and production company Salamander Energy has plugged and abandoned its Tom Hum Xanh-1X exploration well, offshore southern Vietnam.Close Brothers still thinks it will deliver a "solid" performance for the full-year, although funds under management eased in the last three months and it's making less per trade at its market making arm.