The high-flying energy stocks were mauled by profit-taking as the New Zealand sharemarket suffered its heaviest fall in four months.
The S&P/NZX 50 Index slumped 268.10 points or 1.98 per cent to 13,290.09. The index beat the previous biggest drop of 1.91 per cent on September 4 when it closed 11,824.31.
There were 68 gainers and 79 decliners over the whole market on steady volume of 110.2 million shares worth $159.93 Meridian shed 72c or 7.88 per cent to $8.42; Contact Energy was down 71c or 6.6 per cent to $10.04; Mercury lost 30.5 or 4.13 per cent to $7.08; Genesis declined 11c or 2.83 per cent to $3.78; and Trustpower fell 14c to $8.56. Vector was the only energy company to rise, gaining 3c to $4.29.
Jeremy Sullivan, investment adviser with Hamilton Hindin Greene, said the price earnings ratios of Contact and Meridian were more inflated than warranted and those stocks were probably due a correction.
"The New Zealand institutional investors came back from their break, saw how far Contact and Meridian had risen and thought 'geez, they look overpriced — I wouldn't mind taking some profit on that'."