Derek Saul, Forbes Staff

The largest IPO in 22 months, Arm opened with a $54.5 billion market capitalization.

Ellison’s software company suffered its worst day on the stock market since 2002 on Tuesday.

Tesla stock had its best day since January as investors bought into Morgan Stanley’s bullish thesis on the company’s untapped AI potential.

It’s Apple’s worst two-day stretch in 10 months, while Nvidia’s losses are apparently tied to a “nonsense” conspiracy theory.

The slumping Hollywood titan faces yet another challenge from investors frustrated with the stock’s underperformance.

Led by the “godfather of AI,” Nvidia is expected to report a quadrupling of EBITDA this quarter.

Moderna and BioNTech shares both cratered to their lowest price in years Monday as the companies behind the most widely-circulated mRNA Covid-19 vaccines grapple with investor disappointment with crashing revenues.

History suggests the federal debt rating downgrade won’t impact stocks for long, as stocks continued their upward trajectory after a brief blip in the aftermath of the S&P’s similar decision 12 years ago.

Shares of the Swedish music streaming giant tanked 11% Tuesday after reporting earnings, set for their worst day in nine months.

The surge in share price comes amid an industry standoff with Hollywood actors and writers demanding fair contracts that one analyst deemed a major win for Netflix.