Contemporary music festivals are not just a source of experiences and entertainment for participants, but also a significant component of the business ecosystem, generating demand for services in gastronomy, media, and maintenance. On August 4, 2023, social media was abuzz with the unexpected news of the cancellation of the Fest Festival. At the same time, news emerged about the initiation of restructuring proceedings (initially incorrectly reported as bankruptcy proceedings) of the responsible company (FEST FESTIVAL sp. z o.o. based in Warsaw).

The author summarizes the series "Risk and chance in the energy market" by listing all the issues addressed in the articles.

A margin call occurs when the value of an investor's open positions drops below the required deposit level, prompting a broker to request additional funds. If unmet, positions might be closed, leading to potential losses. Minimizing such risks involves strategies like risk management, adjusting position sizes, diversification, market monitoring, hedging, and maintaining adequate capital.