Caterpillar is trading at $638.89, down 10.4% in pre-market after its October 29 earnings report, as its outlook fell short of expectations. - Third-quarter sales rose 17% to $20.7 billion; adjusted earnings of $7.20 per share beat estimates. - Management maintained its mid-to-high-teens full-year sales growth outlook, which Reuters said fell short of analyst expectations. Investors questioned how long data-center demand can sustain growth. - The decline is much steeper than broader index weakness; cryptocurrency moves are not a relevant driver.