Phillips 66 (PSX) closed at $255.70 on September 26, 2026, down 0.07% on the day. The marginal decline extended a rough stretch for the energy company's stock, which has shed 6.36% over the past seven days.
Despite the recent weekly pressure, PSX has posted a gain of 5.56% over the trailing 30-day period, suggesting the longer-term momentum remains comparatively resilient. The company's market capitalization stood at $102.1 billion as of the close.
The modest single-session move offered little relief to investors watching the weekly drawdown, though the 30-day advance indicates the stock had made meaningful ground heading into this period of selling pressure.
