The S&P 500 Energy Sector surged 1.5% to close at a one-month high, while Brent crude climbed 1.8% to reach $106.65 a barrel. These gains followed reports of Russian strikes on Ukrainian energy infrastructure, casting doubt on the efficacy of a proposed ceasefire deal involving the sale of Russian diesel. Analysts at Jefferies noted that the promised volume would satisfy less than ten days of U.S. demand, offering little long-term relief for American consumers.

Market sentiment remained fragile as trading volumes thinned during the Columbus Day and Indigenous Peoples' Day bank holiday. While the Dow Jones Industrial Average managed a modest 0.38% gain, broader indices struggled; the S&P 500 slipped 0.06% and the Nasdaq Composite fell 0.44%. The atmosphere is further darkened by the weekend attack on Saudi Arabia’s capital city airport, where a Houthi missile strike resulted in at least 12 deaths and hundreds of injuries. With the kingdom promising a military response, the prospect of prolonged instability continues to overshadow domestic economic policy.