With the Shiller cyclically adjusted price-to-earnings (CAPE) ratio hovering around 41—a level not seen consistently since the dot-com bubble—and the Buffett indicator signaling that the U.S. stock market is valued at roughly 230% of GDP, many investors are bracing for a potential downturn. While these metrics suggest that current market valuations are historically expensive, they do not necessitate a total exit from growth stocks.
For investors looking to maintain exposure to the artificial intelligence sector while mitigating risk, Berkshire Hathaway’s portfolio offers two resilient options: Apple and Alphabet. Unlike many pure-play AI companies that rely entirely on the success of new technology, these two tech giants possess diversified, highly profitable business models that provide a safety net even if the broader market faces a correction.
Apple: Ecosystem Strength Beyond AI
Apple has long been a cornerstone of Warren Buffett’s investment strategy, favored for its immense brand loyalty, pricing power, and consistent cash flow. While Berkshire has trimmed its position in recent years, Apple remains the firm's largest holding.
The company’s investment thesis is anchored in its massive installed base of over 2.5 billion active devices and more than 1.5 billion paid subscriptions. This ecosystem creates a "moat" that is difficult for competitors to breach. In its fiscal third quarter, Apple reported $109.4 billion in revenue, with significant growth across its hardware segments—iPhone revenue rose 22% and Mac sales climbed 30%.
Crucially, Apple’s Services segment—which includes the App Store, iCloud, and Apple Music—generated $30.7 billion in revenue with higher profit margins than hardware. This recurring revenue stream provides stability during economic uncertainty. While the company is integrating "Apple Intelligence" and a redesigned Siri to drive hardware upgrades, Apple does not require a perfect AI rollout to remain profitable; its existing ecosystem ensures long-term viability regardless of the pace of AI adoption.
Alphabet: Diversification and Infrastructure
Alphabet, which Berkshire began adding to its portfolio in 2025, offers a similar level of resilience through its dominance in search and cloud computing. Google Search remains the company’s primary engine, benefiting from a model where advertisers pay to reach a massive, global user base.
AI is currently being used to enhance these core operations rather than replace them. Features like "AI Overviews" provide deeper analysis for user queries, potentially increasing engagement and keeping advertisers within the Google ecosystem. Furthermore, Alphabet is vertically integrating its AI infrastructure through its Google Cloud division, where it develops proprietary Tensor Processing Units (TPUs). These chips allow the company to manage AI costs internally while providing a competitive alternative to traditional GPUs.
Long-Term Resilience in a Volatile Market
Both Apple and Alphabet are susceptible to short-term price fluctuations if the market experiences a crash, as no company is immune to broad valuation compression. However, their underlying business models are fundamentally different from companies whose valuations are tied exclusively to the hype surrounding AI.
Because both firms generate substantial cash and maintain deep-rooted customer relationships, they are well-positioned to weather economic downturns. For investors concerned about the current high-valuation environment, these two stocks offer a way to participate in the AI revolution while relying on the proven, diversified revenue streams that have defined their success for years.
