Caterpillar is trading at $597.15, down 4.29%, with no clear company-specific announcement explaining the November 4 decline. - Pressure follows the October 29 quarterly report, when management expected moderate fourth-quarter sales growth and a seasonal dealer inventory reduction. - Analysts also cut price targets afterward; these developments predate this session and do not establish today’s cause. - Caterpillar is falling while Industrials (XLI) is up 1.53%, so sector strength does not explain the drop.