The "Magnificent Seven" U.S. tech stocks fell across the board in Monday's premarket session, tracking broad declines in major index futures.

Apple dropped 0.5%, Microsoft declined 0.6%, Meta Platforms slid 1.1%, Amazon.com dipped 0.7%, Tesla Motors tumbled 1.1%, NVIDIA retreated 0.7%, and Alphabet shed 0.6%.

As of 5:50 a.m. New York time, Nasdaq 100 futures were down 0.6%, while S&P 500 futures fell 0.5%.

Bitcoin plunged 5% to approximately $86,650, signaling weakening risk appetite.

Traders also positioned for key economic data releases this week, including the ISM Manufacturing Index (Monday), ISM Services Index (Wednesday), and September's PCE Price Index (Friday).