As the energy landscape in Southeast Europe evolves, Romania and Bulgaria have emerged as key players in spot electricity trading. By 2025, both countries demonstrated significant advancements, with monthly trading volumes on their respective exchanges reaching terawatt-hour levels. This achievement has positioned them as central figures in price discovery for the eastern Balkans. However, despite their robust trading activity, a critical vulnerability persists: both markets struggle to effectively absorb risk.
Romania’s OPCOM has established itself as a leading day-ahead market within the region. Throughout 2025, it consistently recorded monthly traded volumes of over 1.4 to 1.6 TWh. This impressive turnover was bolstered by a diverse generation portfolio that included nuclear, hydro, wind, and gas sources. Consequently, OPCOM’s price signals have gained recognition among traders from Bulgaria, Serbia, and Greece as reliable indicators of market fundamentals in Eastern Southeast Europe.
Meanwhile, Bulgaria’s IBEX has further enhanced spot liquidity in the region. Monthly trading volumes frequently reached between 2.2 and 2.4 TWh, with intraday trading exceeding 600 GWh per month. The exchange has become increasingly attractive for short-term optimization strategies, particularly for hydro balancing and cross-border arbitrage opportunities into Greece and Romania.
Despite these successes in spot trading, both OPCOM and IBEX exhibit significant limitations when it comes to forward hedging capabilities. The availability of exchange-traded futures remains sparse and lacks transparency. Open interest is minimal, tenor coverage is inconsistent, and execution capacity does not meet the needs of larger industrial or utility portfolios. As a result, many market participants have shifted their forward risk management strategies to bilateral over-the-counter (OTC) transactions.
These bilateral agreements enable counterparties to secure prices linked to familiar spot references; however, they introduce various hidden costs. Credit risk premiums are influenced more by the financial health of counterparties than by market liquidity itself. Additionally, liquidity premiums compensate sellers for holding unhedged exposures while basis risk premiums arise from the inability to dynamically offset positions.
In 2025, the impact of these embedded costs became evident. Industrial consumers in Romania and Bulgaria often faced effective hedge prices that were 3 to 6 €/MWh higher compared to similar buyers in Germany or Austria. This disparity is not solely attributable to generation costs but also reflects the local markets’ structural shortcomings in managing risk efficiently.
The situation presents a notable paradox: while OPCOM and IBEX produce some of the most transparent spot price signals in Southeast Europe, these signals do not translate into scalable hedging instruments. The risk is effectively priced but remains unabsorbed within these markets, pushing participants toward HUPX and other core European futures markets where deeper liquidity is available.
By the end of 2025, stakeholders had come to recognize this distinction clearly. OPCOM and IBEX serve primarily as price formation hubs rather than hedging centers. Their primary value lies in providing immediate transparency rather than facilitating long-term risk management solutions. Until forward markets in Romania and Bulgaria can offer greater depth across multiple tenors with anonymous clearing mechanisms, this division will likely persist, resulting in continued embedded risk premiums within electricity pricing across the eastern Balkans.
