New Zealand Electricity Market Wrap

June 2026

  • Over the month of June, ASX Otahuhu calendar year 2027 swap price moved down $12.37 to finish the month at $130.17. This is a price separation of -$1.58 from the next calendar year 2028.
  • Over the month of June, ASX Benmore calendar year 2027 swap price moved down $13.62 to finish the month at $113.46. This is a price separation of -$0.57 from the next calendar year 2028.
  • Total traded volume equaled 57,860 lots which is equivalent to 10.3601 million MWh.
  • The daily average traded volume was 2,755.24 lots and total trade volume is up 29.84% from 2025.
  • Total Open interest is 179,270 lots, up 70.65% from 2025.
    • Futures OI = 114,949 (up 30.90%)
    • Options OI = 64,321 (up 273.20%)
Contract Month Open High Low Month Close Volume Open Interest
June Otahuhu $78.40 $78.40 $40.00 $41.40 894 1690
June Benmore $72.00 $72.00 $35.00 $35.35 807 1740
July Otahuhu $122.15 $123.10 $79.30 $81.50 2261 1865
July Benmore $112.40 $112.40 $66.50 $69.70 2185 1553
Q2 2026 Otahuhu $87.00 $87.00 $74.20 $74.65 129 5738
Q2 2026 Benmore $82.30 $82.30 $69.50 $69.60 198 4387