Berkshire Hathaway $(BRK.B)$: The company said its quarterly profit more than doubled, powered by investment gains and strong results from its industrial and retail businesses. Shares ticked up in premarket trading.

Super Micro Computer $(SMC)$, Marvell Technology $(MRVL)$, Applied Materials $(AMAT)$, Intel $(INTC)$: The chip stocks ticked up in premarket trading amid ongoing volatility in the sector.

Sunrise Energy: Shares in the Australian rare earth miner jumped 16% in Australia after Trump awarded the company a $400 million loan.

Rocket Lab (RKLB): The rocket launch developer is set to report earnings after markets close. Shares were up 3% in premarket trading.