美股開盤後，蘋果公司（Apple）的市值一度突破4兆美元，成為繼英偉達（NVIDIA）和微軟（Microsoft）之後，第三家市值突破4兆美元的上市公司，重新穩居全球前三大市值企業之列。此次市值突破反映投資者對蘋果近期業績和產品表現的信心，尤其是在最新 iPhone 17 系列銷售強勁的帶動下，其股價自今年9月以來持續攀升。

值得注意的是，市值的計算基於所有已發行股票的總價值，因此目前的4兆美元僅為盤中估算值。蘋果將於10月30日（周四）公布2025財年第四季度財報，屆時將更新最新股本數據，市值也可能隨之調整。從2022年1月起，蘋果就成為全球首家市值突破3兆美元的公司。在隨後的AI浪潮中，由於英偉達芯片需求激增，蘋果一度被英偉達超越，但如今隨著消費電子需求回升，尤其是iPhone新品的銷售表現強勁，蘋果再次重燃投資者信心。

目前全球市值排行榜上，英偉達以約4.9兆美元領先，微軟和蘋果分別約4兆美元，緊隨其後的是谷歌母公司Alphabet約3.25兆美元，亞馬遜約2.42兆美元，Meta約1.90兆美元。這一排行榜顯示，雖然科技巨頭仍在全球資本市場中占據主導地位，但競爭格局正在因AI浪潮、消費電子產品銷量以及市場情緒波動而持續演變。

After the U.S. stock market opened, Apple’s market capitalization briefly surpassed $4 trillion, making it the third publicly listed company to reach this milestone, following NVIDIA and Microsoft. This surge places Apple once again among the top three global companies by market value, reflecting renewed investor confidence driven largely by the strong sales performance of the iPhone 17 series, which has propelled Apple’s stock upward since September.

It is important to note that market capitalization is calculated based on the total value of all outstanding shares, so the $4 trillion figure is an intraday estimate. Apple is scheduled to release its Q4 fiscal 2025 earnings report on October 30, which will provide updated share counts and could adjust the company’s market value. Apple first crossed the $3 trillion market cap threshold in January 2022. During the AI boom, surging demand for NVIDIA chips temporarily allowed NVIDIA to surpass Apple, but strong consumer electronics demand and the successful launch of iPhone products have restored Apple’s momentum.

As of today, the global market capitalization rankings show NVIDIA leading with approximately $4.9 trillion, followed by Microsoft and Apple at around $4 trillion each. Alphabet, Google’s parent company, stands at about $3.25 trillion, Amazon at $2.42 trillion, and Meta at $1.90 trillion. These rankings highlight that while tech giants continue to dominate global capital markets, competitive dynamics are evolving due to factors such as AI adoption, consumer electronics sales, and market sentiment fluctuations.