The sound of alarm bells is turning into tougher to disregard. America’s stockmarket completed the primary quarter of 2024 on an astonishing tear, with its benchmark S&P 500 index having risen in 18 out of the previous 22 weeks. Not: it has fallen over every of the previous three. Take a look at particular person shares, in the meantime, and it’s clear simply how far buyers have swung from euphoria to twitchiness. Nvidia was the poster youngster of the S&P 500’s successful streak, seeing its share value greater than double between October and March. On April nineteenth it fell by a gut-churning 10% over the course of a single day, wiping greater than $200bn from the corporate’s market worth. The terrible information that precipitated the plunge? There wasn’t any.