Small businesses are being squeezed by the industry giants, data reveals.

Mark Peterson will take over the reins at NZX full-time effective immediately.

The S&P/NZX 50 Index fell 45.78 points, or 0.6 per cent, to 7243.75.

The value of trading on NZX's markets fell for a third month in March.

Mark Warminger will appeal a High Court ruling that he manipulated NZ stock markets.

Doctors are on the cusp of launching the first new male contraceptive.

New Zealand shares gained, led by Vista Group International and Xero.

GeoOp is sounding out investors for a possible ASX listing.

Shareholders have overwhelmingly backed plans to sell the firm's Taupo wood processing mill and wind up the business.

Restaurant Brands lifted fourth quarter sales 37 per cent to $121.6m.

Problems with the NZX's trading system has delayed the stock market from opening today.

Z Energy's decision to hold its annual meeting over the internet has drawn flak from the New Zealand Shareholders Association.

Peter and Anya Hutson and James Reeves latest attempt to wrest control of Abano Healthcare has failed.

Shares of Snap have surged 41 per cent in their debut, as this year's most-hyped technology public offering joins the bourse.

Kate McKenzie became the sole woman at the head of an NZX50 company when she started her new job as Chorus chief executive yesterday.

Rubicon and private investors have agreed to buy Tenon's Clearwood for US$55m.

NZX annual profit dropped 62 per cent as the stock market operator faced mounting costs from the protracted Ralec litigation.

Shares dropped, led lower by Chorus and Vector on regulation news, while A2 Milk Co and Trilogy gained.

Harbour Asset Management has sold down its stake in Intueri Education Group.

NZ shares gained, led by A2 Milk Co and Fisher & Paykel Healthcare, while Metro Performance Glass plunged after disappointing investors.

Intueri Education Group will quit Australia by the end of the year after losing federal government subsidies.

Cash trading volumes on the NZX slowed in January, continuing December's trend, while the value of trading rose despite fewer small trades.

NZ shares dropped, led by Chorus and Fisher & Paykel Healthcare on continued concerns about US President Trump, while Heartland Bank and Air NZ rose.

New Zealand shares rose led by Vista Group International and NZX after an unsettled week.

ASX-listed auto firm Bapcor has installed four new directors at Hellaby Holdings after securing control of the New Zealand firm.

Abano Healthcare has used Healthcare Partners Holdings' interim dividend to offset the cost of a partial takeover.

New Zealand shares dipped, led lower by Air New Zealand and Vector, with Arvida Group and Tegel Group Holdings rising.

New Zealand shares rose, with A2 Milk Co and high-yielding stocks such as Contact Energy and Genesis Energy gaining.

The independent directors of Hellaby Holdings now support a takeover bid by Bapcor after the offer was declared unconditional.

New Zealand shares fell, led lower by global markets, with ANZ Banking Group and A2 Milk Co down while Vital Healthcare Property Trust gained.