Tower posted a 67 per cent jump in full-year profit and said it would return $120 million to shareholders after the sale of its medical insurance business to Australian insurers nib.
Guinness Peat, the investment company that is winding down its portfolio, rose 0.9 per cent to 59c.
Methven, the tapware maker, rose 5.2 per cent to $1.42 after reporting a 27 per cent drop in first-half profit on its unprofitable British operation.
Pyne Gould Corp fell 15 per cent to 23c, and earlier plumbed a record low 22c, after chairman Bryan Mogridge told shareholders on Wednesday that the company would not pay dividends and the board was "seriously considering the domicile of the company," which was unlikely to be New Zealand.
Argosy Property, whose shareholders agreed to corporatise the company after buying out its ANZ Bank-owned manager last year, rose 0.5 per cent to 93c after lifting first-half earnings 29 per cent.
Fisher & Paykel Healthcare was the biggest decliner on the NZX 50, falling 3.1 per cent to $2.51 after shedding its 5.4c interim dividend. Vital Healthcare Property Trust dipped 0.8 per cent to $1.26 after shedding its 1.925c interim payment.
Goodman Fielder, the Australasian food manufacturer, rose 6.2 per cent to 86c, the biggest percentage gain on the NZX 50.