S&P 500 drops 1.2%, $750 billion wiped out as big tech stocks slide and Greenland comparison stuns markets

U.S. stock markets moved lower as major companies faced heavy selling. The S&P 500 slipped after several days of losses, causing a huge drop in total market value. Big technology stocks played a key role in the fall. Experts used a Greenland value comparison to explain how large the market decline has been.