CORRECTION: Apple, Microsoft cross $4 trillion market cap

In a significant market development, shares of Apple and Microsoft experienced a notable increase on Tuesday, propelling both companies past a staggering market capitalization of $4 trillion. However, they still trail behind Nvidia, which currently holds the title of the world's most valuable company with a market cap exceeding $4.6 trillion. Microsoft had previously reached the $4 trillion mark back in July. On Tuesday, its stock price rose approximately 3% following the announcement of a 27% stake acquisition in OpenAI's for-profit venture. Microsoft has been a supporter of the ChatGPT creator since 2019. The surge in Apple's stock can be attributed to the positive reception of its recently launched iPhone 17 models, which appear to be selling better than previous versions. Remarkably, Apple shares have increased in value for 11 out of the last 12 trading sessions. The tech giant is set to report its fiscal fourth-quarter earnings on Thursday, while Microsoft is scheduled to announce its earnings on Wednesday.