More than 400,000 people have pre-registered their interest in buying Mighty River Power shares before the process closes at 5pm on Friday.

Shares in Mighty River Power are likely to cost between $2.36 and $2.75, according to estimates based on a raft of pre-marketing research reports released by major broking firms.

SkyCity Entertainment Group could be up for $500 million if it wins the right to build a new Gold Coast casino, cruise ship terminal and tourism project, an expert estimates.

The Government's partial asset sales policy will launch tomorrow with a $1 million advertising blitz to promote the sale of Mighty River Power shares.

More details are due today of the NZX listing of Mighty River Power whose float could have a short-term hit on the broader market.

John Key and Bill English have been on tenterhooks waiting for the Supreme Court judgment on the Mighty River sales process, writes Fran O'Sullivan.

Sky Network Television has reported a 9 per cent gain in first-half profit as subscribers migrated to its My Sky premium service and spent more.

New Zealand shares fell, pushing the NZX 50 to a month-low.

Profits are down at SkyCity, after Rugby World Cup benefits weren't repeated and international visitors won more money than usual.

Companies with strong growth prospects and businesses involved in the dairy and agricultural sector are high on the wish list for new listings on the sharemarket.

The fall in the number of UK Facebook users had led many to speculate that Facebook has hit a saturation point in developed markets like the UK and could be going backwards.

Trade Me shares are out of a trading halt, with Fairfax now having sold all its shares to a "broad range of institutions" at a five per cent discount.

Restaurant Brands' newly opened Carl's Jr burger store in Mangere has performed ahead of expectations during its first five days of trading, the company says.

Fast food chain and franchisor BurgerFuel Worldwide has opened its largest store ever, in the capital city of Saudi Arabia.