Phillips 66 (PSX) closed Tuesday at $275.04, a decline of 2.77% for the day. The move extended a broader pullback that has pushed the stock down 4.76% over the past seven days, reflecting sustained selling pressure on the refining and midstream company.
Despite the short-term weakness, PSX has managed to hold onto gains over a longer horizon. Over the trailing 30-day period, shares are up 3.93%, suggesting the recent slide follows a period of relative strength.
The company's market capitalization stood at $110.32 billion as of November 3, 2026, keeping Phillips 66 among the larger names in the U.S. energy sector. Tuesday's session contributed to a cautious tone for the stock as investors weighed its near-term trajectory against its monthly performance.
