The traditional Friday afternoon mindset on commodity trading desks is undergoing a significant shift. For the first four days of the week, traders focus on making profitable bets, but by Friday lunchtime, their attention turns to managing risk until markets reopen on Sunday evening. However, with the rise of cryptocurrency markets, traders can now adjust their positions and hedge against potential losses over the weekend.

This change is largely driven by the growing popularity of perpetual futures contracts, which allow for 24/7 trading. As a result, the long-standing 'weekend effect' in short-dated West Texas Intermediate crude options, where implied volatility is structurally depressed on Fridays, is beginning to narrow. Traders can now capture profits over the weekend if the market becomes chaotic, rather than simply sitting on their positions.

While finding an edge to capture a few basis points of profit may seem like a trader's dream, the impact of perpetual futures on traditional markets remains uncertain. The biggest challenge for institutional traders is the lack of meaningful liquidity and the need for a different infrastructure to support 24/7 trading. Currently, perpetual futures remain in the domain of crypto-native firms, proprietary trading shops, and savvy retail traders. However, as the market continues to evolve, it is likely that traditional finance will be influenced by cryptocurrency innovations, and the concept of a 'weekend effect' may become a thing of the past.