US indices slip as Alphabet, Caterpillar drag; three-day rally stalls

US equities opened lower, ending a three-day winning streak, pressured by declines in heavyweight names Alphabet and Caterpillar. The move suggests profit-taking or sector-specific weakness rather than a broad macro shock, though the absence of a clear catalyst leaves the durability of the pullback uncertain. The development matters as it may signal a pause in the recent risk-on tone.

AI disclosure: Model-written summary of the source, not a verified fact. Check the sources. How Mosaic works