Italy’s dominance keeps South-East Europe’s electricity liquidity gap in focus

Liquidity in South-East Europe’s electricity market continues to diverge sharply, and calendar week 13 underscored how much of the region’s price formation is still influenced by Italy. While trading activity is concentrated in the larger hub, smaller SEE venues show limited depth—an imbalance that matters for both volatility and how efficiently prices are discovered.

Italy leads volumes by a wide margin

Italy recorded weekly traded volumes of approximately 21,940 GWh during calendar week 13, far exceeding activity across SEE markets. Serbia’s SEEPEX exchange registered around 100 GWh over the same period, highlighting the scale of the liquidity disparity between Italy and regional trading platforms.

Uneven depth affects pricing and volatility

This imbalance has direct implications for market behavior. More liquid systems like Italy tend to offer greater transparency and more efficient price discovery. By contrast, smaller markets can be more susceptible to price swings because fewer trades mean thinner order books and less information flowing into prices.

Structural factors tie Italy to cross-border flows

Italy’s dominance is also linked to its structural role in the region as the largest importing market. High demand combined with limited domestic generation capacity makes Italy a key driver of cross-border flows. As a result, conditions in Italy can transmit into interconnected markets across South-East Europe, influencing prices beyond its borders.

Integration efforts continue, but uneven progress persists

For SEE countries, the liquidity gap creates both challenges and opportunities. Limited market depth can increase volatility and reduce trading efficiency, but it can also open room for traders who are able to operate effectively in less liquid environments.

Market integration initiatives are ongoing, including development of regional coupling mechanisms and improvements in cross-border capacity allocation. However, progress remains uneven, and structural differences between national markets continue to restrict full integration.

What traders should take from the week

The week’s data reinforces a practical takeaway for participants: strategies that perform in highly liquid markets may not transfer cleanly to SEE venues. Local market-specific dynamics play a larger role where liquidity is thinner, making careful adaptation essential.