Alibaba’s worth is flotation teaser

Group’s value ahead of US IPO is anything from $80bn to $150bn

VimpelCom settles dispute with Algeria

51% of Djezzy arm sold for $2.6bn to sovereign fund

US investors front run earnings recovery

Wall St is betting on a second-half profit recovery

Tech rally lifts Nasdaq off recent lows

Yahoo rises 10 per cent over the week

Director deals send out buy signals

Over the long term following company insiders delivers returns

NY’s attorney-general subpoenas HFT firms

Schneiderman targets six traders as investigation widens

CSX hit by uncertain journey ahead

US stocks gain after two choppy days of trading

Gold miners suffer as bullion price dips

Technology and biopharma stocks also under pressure

Tech correction casts shadow on IPOs

Four companies delayed or postponed listings last week

WebMD shares take on rosy glow

S&P 500 staunches losses

US retailers lift clouds on Wall Street

Biggest surge in sales reported since September 2012

US equities sell-off fans junk fears

Continued S&P 500 weakness could hit high-yield debt

Rivalry comes before good economic sense

Going all-out for maximised growth is often pushed aside

Tech stocks fuel fears of wider sell-off

US retailers fall on Gap sales slide

Financial sector also weakens in wake of JPMorgan results

Europe and Asia join in US tech rout

Internet and chip stocks hit as Nasdaq suffers worst fall since 2011

HP rises on PC market share progress

Stocks end lower as Fed minutes rally fades

Investors are right to resist high capex

There has been a boom in both capex and shareholder payouts in US

Alcoa accelerates on carmaker targets

Dr Pepper slips on drinks sector fears

Broker downgrades the beverage group to ‘underweight’