The Magnificent Seven declined on Monday, capping off the worst month and quarter on record for the group of big tech stocks that account for more than a quarter of the S&P 500's market value.

Magnificent Seven represent 32% of the S&P 500 as of March 2025, up from 12.3% in 2015. From 2015 to 2024, these seven companies achieved a 697.6% return, outperforming the S&P 500. In 2025 ...

That was the largest one-day loss of valuation on record for the group, according to Dow Jones Market Data — easily eclipsing the $758.7 billion previous record set on March 10. Apple Inc. AAPL itself ...

And technology stocks such as the "Magnificent Seven" have been particularly vulnerable to the news since they rely a great deal on international production of raw materials and finished goods.