Major stock indexes quickly ended their two-day winning streak as the Nasdaq dropped more than 400 points and the Dow Jones Industrial Average plunged 260 points at the close Tuesday. Holding an industry conference didn't seem to help Magnificent Seven name Nvidia as it sank again along with Tesla on the stock market today.

The Dow Jones Industrial Average, one of the two main US blue-chip gauges, fell 260.3 points, or 0.6 per cent, on Tuesday, as investors awaited the outcome of a key Fed meeting due the next day. The technology stocks-heavy Nasdaq Composite gave up the psychologically important 17,

Nvidia’s (NVDA) stock was down by 1.76% at the market close on Monday ahead of chief executive Jensen Huang’s keynote at the GPU Technology Conference.