On August 5, major U.S. technology stocks saw significant declines in pre-market trading. Apple (AAPL.O) fell more than 7%, with reports indicating that Warren Buffett's Berkshire Hathaway reduced its holdings of Apple shares by nearly half in the second quarter. Nvidia (NVDA.O) experienced a nearly 9% drop, while Tesla (TSLA.O) also fell more than 7%. These pre-market movements reflect investor concerns and broader market volatility.