It is ~14% of NASDAQ s weight. 9%of S&P500 #1 on each.

It is responsible for ~40% of the growth in value in NASDAQ IN the past couple years.

That's a hard fall if it does.

https://www.fool.com/investing/2025/07/14/nvidia-stock-market-cap-sp-500-nasdaq-dow-jones/

https://seekingalpha.com/article/4697805-nasdaq-100-has-become-entirely-dependent-on-nvidia