Internet reports that in the past two years, most of the S & P 500's gains have been driven by the seven largest companies (Apple, Nvidia, Microsoft, Alphabet, Amazon, Meta and Tesla), which have had a rough start in 2025, falling into an adjustment zone, wiping out about $1.4 trillion in market value. Bloomberg's "Big Seven" index has fallen about 10% from its December high. Tesla led the decline with a decline of more than 25% during the year, followed by Microsoft and Alphabet. Tesla's share price soared after Trump won the election, but has since been sold sharply. Tesla's share price has been in trouble due to a string of poor sales reports and increased competition. However, as investors recognized Meta's artificial intelligence strategy, the company's share price bucked the trend this year. Meta set its longest consecutive rise in history in February, rising for 20 consecutive trading days and increasing its market value by more than $320 billion.