Technology stocks were falling premarket Tuesday, with the State Street Technology Select Sector SPDR Fund (XLK) down 1% and the State Street SPDR S&P Semiconductor ETF (XSD) declining by 1.7%.

SK Hynix (SKHY) and Samsung shares were lower on Tuesday after China's CXMT claimed a breakthrough in DRAM technology, media outlets reported. SK Hynix stock was down more than 6% pre-bell.

Nokia (NOK) agreed to sell its Enterprise Campus Edge business to Aurelius. Nokia shares were down more than 3% premarket.

SentinelOne (S) stock was down more than 7% after the company said it plans to raise $1.25 billion through a private offering of 0% convertible senior notes due 2031 to qualified buyers.