In September 2016 UOI was at just over 4,000 GWh - a figure equivalent to the electricity consumed by approximately 560,000 average households over one year.

Chief Executive of the Electricity Authority Carl Hansen says “Open interest is a measure of ‘skin in the game’ and is an indicator of the depth in the hedge market. These figures indicate there is good depth in the hedge market at transparent prices.”

UOI measures the total number of exchange-traded hedge contracts that are yet to expire, adjusted for trades which offset a traders’ position (the number of net buys or net sells is what determines a trader’s level of ‘interest’ in the market).

Mr Hansen says, “Generally, greater depth in a market results in more efficient pricing. We are confident that the depth in this market means more efficient futures prices for electricity and helps electricity retailers enter and compete in the market—which is good news for consumers.”

The Australian Securities Exchange (ASX) is preparing to list two new cap products in 2017. Cap products allow electricity purchasers to pay an upfront premium to protect themselves against unexpected increases in spot prices.

Electricity generators, in particular those who generate mostly in a ‘dry year’, have an incentive to sell cap products because their spot market revenue enables them to pay-out on those products during dry events. Electricity purchasers that can reduce load during high prices (called ‘demand response’ parties) are another potential seller of cap products.

Mr Hansen says “Once these cap products have been introduced, we expect to see a rise in combined UOI for all exchange traded instruments because caps offer a different mechanism for spot market purchasers to manage risk.

A deeper hedge market, with more options for retailers to manage their risk position, could mean better prices for consumers. “

UOI across all exchange traded instruments on the ASX

Graph showing UOI across all exchange traded instruments on the ASX

www.emi.ea.govt.nz/r/ffcns

For more information:
Leah Chamberlin
Communications Adviser
021 073 7777


Note to editors

The Australian Securities Exchange (ASX) is preparing to list two new cap products in 2017. These cap products will provide additional depth to the hedge market in the form of:

  • a half-hourly settled, capacity shortage cap product with a $300/MWh strike price. We expect participants who only want protection against short-lived price spikes will trade this product
  • a half-hourly settled, energy shortage cap product with a $130/MWh strike price. We expect participants who can withstand some risk in the wholesale spot market, but want protection against prolonged periods of high spot prices (which may occur in a ‘dry-year’) as well as short-lived price spikes, will trade this product.