Nvidia stock has suffered its biggest drop in months amid a broader selloff in highly valued technology companies.

The S&P 500 slipped 0.4% and is on track for a third straight modest loss after setting its all-time high last week. The Dow Jones Industrial Average was up 8 points, or less than 0.1%, as of 11:50 a.m. Eastern time, and the Nasdaq composite was down 1%.

Tech rout led to another session of weakness on Wall Street on Tuesday as heavily-weighted Nvidia (NVA), peer AMD (AMD), and data analytics company Palantir (PLTR) all serving as drags. As the market struggles to regain its footing,

Nvidia ( NVDA) may be the market's biggest AI stock, but institutional investors are still shying away. "NVDA is now the most under-owned large-cap tech stock," Morgan Stanley analyst Erik Woodring wrote in a note.

Nvidia's stock was falling 3.2% in recent trading, enough to push it below its 20-day moving average ($178.49) -- a short-term trend tracker -- for the first time since April 23. That snaps an 80-session streak above the 20-DMA,

Nvidia ( NVDA 0.94%) owns stock in publicly traded companies as part of its treasury strategy. Its $4.3 billion portfolio included six positions as of the June-ending quarter, but two accounted for 95% of invested assets: 91% was allocated to CoreWeave ( CRWV -3.17%) and 4% was to Arm Holdings ( ARM 1.52%).

The sudden reversal shows how the hottest AI trade and top-performing stock of the year is colliding with a broader market rotation out of Big Tech.

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