Alphabet, Apple, Nvidia and the rest of the so-called “Magnificent Seven”—have lost a quarter of their value. Investors have scrambled into havens such as gold, or sought to diversify by buying shares listed elsewhere (see chart 1).

Stifel analyst Stephen Gangaro recently cut his price target on Tesla (NASDAQ: TSLA) to $450 from $455, maintaining a buy rating on the stock. A price target cut is never great news, but it's not a material reduction,

U.S. stocks are giving back some of their big recent gains Monday, ahead of potential flashpoints later this week that could bring more sharp swings for financial markets. The S&P 500 was down 0.8% in afternoon trading and on track to break a four-day winning streak.