New Delhi, Feb. 27 -- Nvidia's upbeat quarterly forecast signaled that the AI boom is not over, but it failed to bring buyers back into the "Magnificent Seven" stocks that have dipped in the last three months.

The stock lost about 3% to $127.10 in choppy trading, and other members of the group such as Microsoft and were marginally lower.

Nvidia is seen as a barometer of the AI market, with investors counting on it to fuel a sputtering rally following the "Magnificent Seven" stocks' tumultuous retreat from their late-2024 peaks.

Chinese startup DeepSeek's low-cost AI model had also fanned investor skepticism over the billions of dollars earmarked by Big Tech for AI infrastructure, with many of the stocks still struggling to recoup the l...