Updates from Vodafone, Tullow Oil and Berkeley Group

Friday saw the FTSE 100 end 70 points down at 6,412. In total, the index fell more than -3% during August. G4S was Friday's biggest riser, up +3.38% to 260p while Petrofac, one of last week's biggest climbers, saw the biggest end-of-week dip, down -2.67% to 1385p.

Overnight the Nikkei 225 climbs +1.42% to 13,579, thanks to a weakened yen.

We commence with news that Vodafone has confirmed its 45% stake in Verizon Wireless is now in the advanced stage of being sold. The mobile giant has stuck a for-sale sticker on a deal - $130bn, or £84bn.

There should be greater clarity on a deal later today, though it's unlikely Vodafone will pay much tax to the Treasury - if any - on the sale thanks to a capital gains disposal get-out. If Vodafone goes ahead, it will be the largest corporate deal sealed since the 2000 Vodafone-Mannesmann takeover.

Vodafone investors should see a good 50% chunk of a sale returned to them while the remainder of the money will probably be used for more acquisitions in Europe or emerging markets.

Next, disappointment for Tullow Oil investors. Its Buzio-1 exploration well in offshore Mozambique has been plugged and abandoned after failing to strike oil. The Buzio-1 well was the second deepwater exploration well drilled in the area.

Tullow's Discoverer Americas drill ship drilled Buzio-1 to a final depth of 3,333 metres in water depths of 1,534 metres.

"Having encountered hydrocarbons with the Cachalote-1 well," says exploration director Angus McCoss, "we have acquired valuable information from the Buzio-1 dry hole. We will now combine the data from both offshore Mozambique wells with our extensive seismic in this licence area and determine our next steps."

Finally, an interim from London property player Berkeley Group Holdings. Trading for the period 1 May to 31 August is in line with Board expectations and remains set to return £568 million in cash to shareholders by 30 September 2015.

Berkeley's Board will be paying a dividend of 59 pence per share (£77.3 million in cash) on 27 September 2013 to shareholders, leaving 360 pence per share (£471.5 million in cash) to pay to meet the first milestone by 30 September 2015.

"Sales to the UK domestic market," says the company, "have increased, encouraged by tentative signs of improving consumer confidence and the Government's positive intervention in the housing market through the Help to Buy scheme."