GOOGL is a long-term hold; its PEG ratio is below the sector average despite recent price gains and high capex.

It was in Google, with the trading symbols GOOG and GOOGL, where Berkshire injected more than $16 billion, increasing their stake by a shocking 650%, specifically for the trading symbol GOOGL.

The reason I say this huge move was so surprising is because, you know, historically, when Warren Buffett was making all the decisions, Berkshire was really known for putting most of its money into what I have always considered, you know, rather boring, low-growth companies—profitable, of course, but rather low-growth .

But for Berkshire to now have Google as its third-largest stake when the two are combined, with Apple leading the way, you are looking at two tech giants that also have a huge exposure to artificial intelligence, by the way.

This is a very big departure from the old guard's approach. To be honest, I admire this approach for Berkshire. I mean, even if we look specifically at artificial intelligence, Google has really transformed itself from being an entity that everyone feared would be completely disrupted by AI , to building an integrated ecosystem in which it leaves its mark at every stage of the AI boom.

They also developed their own leading artificial intelligence model, "Gemini," and integrated it directly into their digital platforms such as Google Search, Android, YouTube, Gmail, and others.

Gemini is also a standalone app, by the way. It recently surpassed the one billion monthly user mark. Equally important, they have turned Google Cloud into a veritable cash-generating monster by acting as the owner of the AI infrastructure.

Where AI startups that cannot afford billions of dollars to build their own data centers can rent computing power and access to tensor processing units directly from Google on a recurring usage basis.

As a result of all this, their financial performance is making huge leaps.

In fact, Google Cloud is growing faster than any of its major competitors, with revenues up more than 80% year-over-year in the last quarter alone, reaching nearly $25 billion.

As their operations expand, their profitability also increases.

For example, cloud operating margins expanded from about 20% to 36% in the last quarter, in addition to a backlog of orders exceeding half a trillion dollars. For the company as a whole, sales are now approaching three-quarters of a trillion dollars annually , with an incredible net income that recently surpassed the $200 billion mark as well.

I realize the stock has risen too much and capital expenditure is too high , which worries some investors, but with its price-to-earnings- to-growth (PEG) ratio still below the sector average, I think it's a stock everyone should keep in their portfolios for the long term.

So, yes, I would currently place it high in second place on our list.