Apple and Microsoft each surpass $4 trillion valuation milestone

Apple and Microsoft each surpassed the $4 trillion valuation milestone on Tuesday, marking a rare achievement in market capitalization. Apple’s shares rose to a record $269.2, fueled by strong demand for the iPhone 17 series which boosted sales by 14% in key markets like the US and China, while Microsoft’s valuation rebounded to $4 trillion following a new agreement with OpenAI, with its 27% stake in OpenAI valued at approximately $135 billion[1][2]. Both giants are set to report their quarterly results later this week, highlighting sustained investor confidence in their growth fueled by hardware sales and AI/cloud services respectively[2].

## Breaking News Update: Apple and Microsoft Surpass $4 Trillion – Technical Analysis & Market Implications **Apple** officially crossed the $4 trillion valuation threshold on Tuesday, October 28, 2025, reaching a record share price of $269.20 in early trading, up 0.2%—a surge attributed to a 13% rally since the launch of the iPhone 17 series on September 9, which outperformed its predecessor by 14% in the U.S. and China[1]. “The iPhone accounts for over half of Apple’s profit and revenue, and the more phones they can get into the hands of people, the more they can drive people into their ecosystem,” said Chris Zaccar

Apple and Microsoft have each surpassed the $4 trillion market capitalization milestone, marking a rare achievement shared only with Nvidia. Experts highlight that Microsoft's recent surge is fueled by its strategic 27% stake in OpenAI, valued at about $135 billion, positioning it as a leader in the AI revolution. Meanwhile, Apple's growth is driven by unexpectedly strong sales of the iPhone 17 series, with analyst Chris Zaccarelli noting the iPhone's critical role in generating over half of Apple's profits and expanding its ecosystem, offsetting concerns about Apple's slower AI progress[2][4][8].

Apple and Microsoft both surged past the $4 trillion market capitalization milestone on Tuesday, with Microsoft shares climbing nearly 3% to $547.22 amid renewed investor confidence after finalizing its 27% stake in OpenAI, valuing the AI partner at about $135 billion[2][4]. Apple briefly pushed its stock above $270, fueled by strong iPhone 17 sales and 11 gains in 12 trading days, but later retreated slightly to $268.56, keeping its market cap just above $4 trillion[2][3][4].

Apple and Microsoft have each surpassed the $4 trillion market valuation milestone amid significant US government and regulatory engagement. Apple has committed $100 billion to domestic manufacturing to align with federal interests and avoid tariffs, reflecting cooperation with US policy goals[4][3]. Meanwhile, Microsoft remains less scrutinized by antitrust regulators compared to other Big Tech firms and holds multibillion-dollar federal contracts, including AI partnerships central to US cybersecurity strategy, indicating close government ties amidst its $4 trillion valuation[6][3].

Apple and Microsoft both surpassed the $4 trillion valuation milestone on October 28, 2025, with Apple shares rising about 1% to $269.86 and Microsoft shares climbing roughly 3% to close above $538.13 following its finalization of a 27% stake in OpenAI's for-profit business[1][2][6]. Technically, Apple's climb to $4 trillion reflects strong iPhone 17 demand, notably a 14% shipment increase over the prior model in the U.S. and China, reinforcing its diversified product ecosystem and easing tariff concerns; meanwhile, Microsoft's surge is fueled by its AI strategy centering on the OpenAI partnership, with analysts expecting robust Azure cloud growth of 38% amid A

Apple and Microsoft each surpassing the $4 trillion valuation milestone has sparked widespread consumer and public excitement, especially after Apple’s iPhone 17 sales exceeded expectations with a 14% increase in the first 10 days in key markets like the US and China, with one analyst calling the base model "very compelling to consumers" for its value[5]. On social media, reactions ranged from admiration of both companies’ innovation to bullish investor optimism, as Microsoft’s stake in OpenAI boosted its shares by about 3%, highlighting public recognition of its AI strategy[2]. Investors eagerly anticipate upcoming earnings reports, expecting these milestones to translate into continued market dominance and growth[4].

Apple and Microsoft each surpassed the $4 trillion market capitalization milestone on October 28, 2025, with Apple’s shares rising about 1% to $269.86, driven by strong iPhone 17 sales which outpaced the iPhone 16 by 14% in key markets, while Microsoft’s shares climbed roughly 3% after finalizing a 27% stake in OpenAI, reinforcing its AI-driven growth strategy[1][2]. This milestone signals robust investor confidence in Apple’s hardware supercycle and Microsoft’s AI investments, setting the stage for their upcoming earnings reports that will clarify how these technological advances are translating into revenue and market dominance[2].

Apple and Microsoft each surpassed a $4 trillion valuation milestone on Tuesday, joining Nvidia in an exclusive club of tech giants. Experts highlight divergent growth drivers: Apple’s surge is fueled by unexpectedly strong iPhone 17 sales, with Counterpoint Research noting a 14% sales increase over the iPhone 16 in key markets like China, while Microsoft's rise is credited to its strategic 27% stake in OpenAI, valued at about $135 billion, and expanding Azure cloud demand. Industry analysts point to Apple's iPhone supercycle and AI integration as key, with Tom Forte from Maxim Group noting investor enthusiasm for AI-driven upgrades, and Microsoft’s AI partnership seen as central to its revenue growth trajectory ahead of earnings reports this week[2][3]

Apple and Microsoft have each surpassed the $4 trillion market valuation for the first time on Tuesday, October 28, 2025, with Microsoft’s cap reaching $4.06 trillion and Apple’s at $4.006 trillion, as both stocks surged at market open—Microsoft up nearly 3% after finalizing a 27% stake in OpenAI, and Apple rising 0.3% on robust demand for its iPhone 17 series[6]. Consumer sentiment is mixed: investors cheer Apple’s 25% stock gain over the past three months, fueled by iPhone 17 sales up 14% year-over-year in the U.S. and China, yet some worry the company is lagging in AI compared to Microsoft and

Apple and Microsoft each surpassed the $4 trillion market valuation milestone on Tuesday, sparking excitement among consumers and investors alike. Apple’s milestone was fueled by stronger-than-expected sales of the iPhone 17 series, which outsold the iPhone 16 by 14% in the first 10 days in key markets like the US and China, with analysts calling the base model "very compelling to consumers" for its value[7]. Meanwhile, Microsoft’s stock jumped nearly 3% after finalizing a 27% stake in OpenAI, valued at $135 billion, reinforcing investor confidence in its AI-driven growth strategy[4][2]. Public reaction reflects a mix of admiration for their market dominance and anticipation for their upcoming quarterly earnings reports later

**Breaking News Update**: As Apple and Microsoft break the $4 trillion valuation barrier, consumer enthusiasm is evident in the remarkable sales figures for Apple's iPhone 17 series, which have outsold the previous models by 14% in just the first 10 days in the US and China. Public reaction is further highlighted by Apple's stock rising over 25% in the past three months, reflecting investor optimism about its AI strategies. Mohammed Soliman of McLarty Associates notes, "Apple and Microsoft both crossing $4 trillion on the same day isn't a coincidence. It's the market recognising two distinct but equally valid AI strategies" [7][6].

**Breaking News Update**: On Tuesday, Apple and Microsoft both crossed the $4 trillion market capitalization milestone, with Apple's valuation reaching $4.006 trillion and Microsoft's hitting $4.06 trillion. Apple's shares rose 0.3% in initial trading, while Microsoft's stock surged nearly 3% upon finalizing its 27% stake in OpenAI's for-profit business, valued at nearly $135 billion[2][4]. This surge comes ahead of their respective earnings reports, with investors keenly watching the impact of AI investments on their financial performance[2][4].

As Apple and Microsoft achieve the $4 trillion valuation milestone, global markets are responding with increased optimism. The surge is attributed to strong sales for Apple's iPhone 17 and Microsoft's strategic investments in AI, with Microsoft's OpenAI stake valued at $135 billion[4]. Analysts predict this could lead to heightened competition in the tech sector, potentially impacting global tech investment trends and market dynamics[2][4].

Apple and Microsoft each surpassed the **$4 trillion market capitalization milestone** on Tuesday, with Apple hitting approximately $4.006 trillion and Microsoft around $4.06 trillion[4][8]. Microsoft's valuation surge follows a 3% rise in shares after finalizing a 27% stake in OpenAI, reinforcing its aggressive AI strategy that has driven 175% growth in Azure AI, while Apple’s milestone reflects strong iPhone 17 sales outperforming previous models and a robust hardware-driven ecosystem[1][2][4][8]. This valuation breakthrough underscores Microsoft’s dominance in cloud infrastructure and AI investments, contrasted with Apple’s cautious AI rollout, signaling divergent but competitive paths in the evolving tech landscape[1][6].