The Dow Jones closed lower on Tuesday, while the Nasdaq and S&P 500 gained ground.
Following the Dow's footsteps was chip and circuit maker Texas Instruments Inc (NASDAQ:TXN), which dropped over 6.6% to US$112 each after the bell.
The firm reported fourth quarter earnings of US$1.09 on $3.75bn in revenue, which met expectations for earnings and just beat on revenue.
Canadian National also reported a higher operating cost to revenue ratio than the year-ago quarter, indicating slightly lower company efficiency.
LED and light manufacturer Cree Inc (NASDAQ:CREE) fell nearly 1.5% after the bell to US$34.5 after it reported its second quarter numbers, which beat analyst expectations on revenue, but missing by ever so slightly on earnings.
The group also issued a weak third quarter outlook, citing one-time fees from tax reform.