Dual-listed stocks weighed on New Zealand's market. Kathmandu, the outdoor goods retailer, led the benchmark index lower in afternoon trading, tumbling 4.1 per cent to $1.65. Fletcher Building, the construction and building supplies firm, retreated 2.1 per cent to a two-and-a-half-year low of $7.90. ANZ fell 2.7 per cent to $35.80 and Westpac slid 1.9 per cent to $36.30. Trade Me Group, the online auction site, declined 2.9 per cent to $3.39.
Bryon Burke, head of equities at Craigs Investment Partners, said dual-listed stocks "had a double whammy, because our dollar surprisingly enough has strengthened against the aussie".
Air New Zealand, the national carrier, fell 0.8 per cent to $2.55. Moody's Investors Service upgraded its credit rating by one notch to Baa2 after changing its debt treatment of operating leases and on the prospect that cheaper jet fuel will assist the national carrier's earnings.
Spark New Zealand fell 1.1 per cent to $2.79.
Of the day's few gainers, Pacific Edge, the Dunedin-based biotech firm, was the best performer on the benchmark index, up 1.7 per cent to 61c.
Outside the benchmark index, PGG Wrightson rose 1.1 per cent to 47c. The Commerce Commission is investigating Wrightson over the fees the rural services firm, which is controlled by China's Agria Corp, charged during the implementation of a national livestock tagging programme.
Arvida Group fell 2.3 per cent to 87c. The retirement village settled its $62 million acquisition of Aria Bay, Aria Park and Aria Gardens.
Mercantile Investments was unchanged at 15c in its debut on the local market via a compliance listing. The Sydney-based firm is veteran corporate raider Sir Ron Brierley's investment vehicle.