Over the past 6 years, there has been a surge in trading volume of electricity options. Drivers for the increase can be primarily attributed to the increased presence of speculative trading firms within the electricity market attempting to manage and capitalise on the volatility within the market. Options are also becoming an increasingly popular tool in the electricity space given the increase in Power Purchase Agreements (PPAs) being underwritten by these products. In doing so, companies are hedging against potential downside movements in the market to become more risk averse.
This trend highlights a strategic shift towards using financial instruments to manage electricity positions and mitigate risks associated with these long-term contracts. However, the volume traded in May 2024 for FY25 options expiry indicates a deceleration in trading volumes.
Interestingly, the dynamics of the options market are similar in the larger states of the NEM: Queensland, New South Wales, and Victoria. However, this contrasts significantly with South Australia, where the volume of options traded is much more in line with the volume of Futures traded. Overall, the futures and options market in South Australia is highly illiquid, with trading volumes declining over recent years. With the recent Q1 in SA being under RRO conditions and therefore fully contracted, the likely need to have exposed positions underpinned in the state has reduced and with it the appetite for speculators in the market. This contrasts with the other NEM states whose interconnector flows allow for cross-border spreads to be contracted and the opportunity for speculators to take advantage of these financial products without the requirement to physically settle their positions.
Electricity options are primarily traded in financial year (FY) and calendar year (CAL) strips, expiring in May (for FY) and November (for CAL) each year. Significant spikes can be observed in the following graphs for Queensland, New South Wales, and Victoria. The first four graphs illustrate a rising trend in trade volume over time, followed by a noticeable decline in the most recent expiry in May. The subsequent four graphs (graphs 5-8) overlay the FY24 quarter’s price and volume, highlighting the timing of expiries and their potential impact on prices.
With the CAL products coming towards expiry in November and high prices remaining in the ASX Swap market, this will likely lead to many of these products being exercised at expiry due to the strike price likely being below the current forward price. This can lead to increased volatility on the ASX over these periods and significant volume being traded. What will add a level of interest in this particular expiry period will be the low generation availability in NSW at the time of expiry. With many units already on outage schedules, any unplanned outages on the system could further exacerbate the price and add a level of fear and uncertainty to the market.
Graph 2 – QLD Trade Volume
Graph 4 – VIC Trade Volume
Graph 5 – NSW FY24 Trade Volume & Price
Graph 6 – QLD FY24 Trade Volume & Price
Graph 7 – SA FY24 Trade Volume & Price
Graph 8 – VIC FY24 Trade Volume & Price