U.S. AI concept stocks gave back some of yesterday's gains in pre-market trading, with SKHY falling 3.95%.

BlockBeats news, October 20 - According to BIT (bit.com) market data, US AI concept stocks gave back some of yesterday's gains in pre-market trading, including:

Optical modules: COHR down 2.22%, LITE down 2.09%, AAOI down 3.66%, NOK down 1.21%, MRVL down 2.04%

Storage: SKHY down 3.95%, STX down 0.76%, WDC 2.06%, SNDK down 2.13%, MU down 2.18%