Apple and Microsoft's Market Cap Exceeds $4 Trillion

Tech Giants: The market capitalization of Apple and Microsoft recently surpassed the $4 trillion mark. In a historic achievement, this is the first time Apple's market value has exceeded this figure, making it the third global company to reach this milestone, following Nvidia, which achieved it in July 2025, and Microsoft, which surpassed this level on July 31, 2025. Microsoft had first reached this figure in July, but its value subsequently declined to $3.9 trillion, before returning and stabilizing at $4 trillion on Tuesday, July 29, 2025, following news of its strengthened ongoing partnership and investments with OpenAI, reflecting the increasing importance of artificial intelligence fields.

Apple's Growth Towards $4 Trillion

Apple's Growth: Apple has witnessed exceptional and astonishing growth over the years; its market value reached $1 trillion in 2018, $2 trillion in 2020, and $3 trillion in 2022. According to reports dated October 2, 2025, Apple has surpassed the $4 trillion mark in market capitalization. Apple's stock rose significantly after the launch of the iPhone 17 lineup, which appears to be achieving sales surpassing previous versions. The company is scheduled to announce its fourth-quarter 2025 results on Thursday, October 30.

Microsoft's Boom and the Role of Artificial Intelligence

Microsoft and AI: Microsoft has also experienced significant growth, thanks to the increasing demand for its Azure cloud computing service, which provides large language models from OpenAI, as well as the computing power needed to train AI models. The company stated on Tuesday that its approximately 27% stake in OpenAI is valued at around $135 billion, underscoring its strategic investments in this vital sector. The tech giant is scheduled to announce its quarterly results on Wednesday.

Alphabet Nearing the $4 Trillion Mark

Alphabet in the Race: Alphabet, the parent company of Google, is also approaching the $4 trillion mark, with its value reaching $3 trillion in September 2025, and currently trading at a market capitalization of $3.25 trillion, reinforcing its position as a leading technological force.