US stock index futures ticked higher in pre-market trading on Thursday, June 11.

Oracle (ORCL): Oracle shares tumbled over 9% pre-market, fueled by market anxieties over higher-than-expected capital expenditure (CapEx) and the company's new financing plans.

Semiconductors: The chip sector notched broad gains before the bell. SUPER MICRO COMPUTER INC surged over 6%, while ASML and ARM both climbed more than 3%. Intel, AMD, Taiwan Semiconductor Manufacturing, Marvell Technology, and Qualcomm all advanced over 2%.

Memory Chips: Storage-related stocks rebounded in early trading. SanDisk Corp. jumped over 5%, Micron Technology rallied more than 4%, Western Digital gained over 3%, and Seagate Technology PLC rose over 2%.

Space Stocks: Space exploration equities rallied strongly across the board pre-market. Destiny Tech100 (DXYZ) soared over 10%. Rocket Lab USA, Inc., AST SpaceMobile, Inc., and Intuitive Machines all spiked over 5%, while Sidus Space Inc. added over 4%.

Optical Communications: Optical fiber and networking concepts broadly advanced pre-market. Credo Technology Group Holding Ltd gained over 4%. POET Technologies Inc and Astera Labs, Inc. both pushed over 3% higher, while Corning and Lumentum ticked up over 2%.