Nvidia (NASDAQ: NVDA) stock is starting this week's trading off with another round of sell-offs. The company's share price was down 4.1% as of noon ET Monday amid a 2% decline for the S&P 500 (SNPINDEX: ^GSPC) and a 3.

What Happened? Shares of leading designer of graphics chips Nvidia (NASDAQ:NVDA) fell 5.4% in the morning session after markets tumbled, extending the weakness from the previous week as concerns over the ongoing trade war continued to spread.

Nvidia stock fell on Monday despite more signs that demand for the chip maker’s artificial-intelligence products remains high. Shares dropped 5.1% to $106.98, their lowest close since Sept. 9, according to Dow Jones Market Data.

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Despite the drop in the S&P 500, nearly 40% of its stocks rose. Nvidia stock impact shakes markets. Berkshire Hathaway, led by Warren Buffett, was one of the significant gainers,