“This Stock Could Be Like Buying Amazon in 1997” I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. How Warren Buffett is invested today Enter Your Email Address Simply click below to discover how you can take advantage of this. See all posts by Edward Sheldon, CFA Warren Buffett is widely regarded as the greatest stock market investor of all time. So, I like to keep a close eye on his Berkshire Hathaway stock portfolio.Here, I’m going to take a look at his current portfolio holdings (as reported in Berkshire Hathaway’s latest 13F filings for the period ended 30 September 2020). This is how Buffett is invested today.5G is here – and shares of this ‘sleeping giant’ could be a great way for you to potentially profit!According to one leading industry firm, the 5G boom could create a global industry worth US$12.3 TRILLION out of thin air…And if you click here we’ll show you something that could be key to unlocking 5G’s full potential…Warren Buffett loves AppleThe first thing that strikes me about Buffett’s current portfolio is his enormous stake in Apple. At its current share price of $137, his holding in the tech giant is worth a staggering $132bn.It’s worth pointing out that the total value of all the listed stocks in the Berkshire Hathaway portfolio is around $275bn. This means Apple is almost half the portfolio. Clearly, Buffett isn’t afraid to make a big bet on a company he really likes.Buffett’s tech stocksBuffett also owns a number of other well-known technology stocks, which is interesting because he used to avoid the tech sector. Today, he owns almost $1.8bn worth of Amazon shares, $2bn worth of Snowflake stock, and $2.6bn worth of Verisign stock. He also owns about $2.1bn worth of Visa stock and $1.5bn worth of Mastercard stock.This means he has a healthy level of exposure to growth industries such as e-commerce and digital payments.A balanced portfolioBut here’s the thing. While Buffett does have significant exposure to the technology sector (mainly through his Apple position), his portfolio remains quite diversified across various sectors.For example, he owns a number of different consumer goods companies including Coca-Cola, Kraft Heinz, and Mondelez. These kinds of companies – which all own powerful well-known brands – tend to be quite defensive in nature and can provide protection during periods of volatility.He also has plenty of exposure to the healthcare sector. Here, some of his holdings include AbbVie, Pfizer, Johnson & Johnson, Bristol Myers Squibb, Teva Pharmaceuticals, and Biogen. Healthcare is another sector that is generally quite defensive and can hold up better than other sectors during periods of stock market turbulence.On top of this, he owns a number of financial services companies. Here, he owns big US banks such as Bank of America, Wells Fargo, and JP Morgan, as well as research firm Moody’s Corporation.So, overall, his portfolio is quite well diversified. If tech stocks take a hit, other areas of his portfolio may offer some protection.RisksIt’s worth noting that there are several risks associated with Buffett’s portfolio. The huge holding in Apple is one that immediately stands out. If Apple shares were to fall significantly, his portfolio would take a big hit.Buffett also has a lack of international diversification. Nearly all his stocks are American companies that are listed in the US. If the US stock market underperforms, his performance could suffer.It also goes without saying that Buffett’s strategy isn’t going to suit all investors. He has developed his own unique investment strategy – which suits his risk tolerance – over more than 50 years of investing.Overall, though, there are some fascinating takeaways from Warren Buffett’s portfolio. I certainly think it’s interesting how much tech exposure he has today, given that he used to be reluctant to invest in the sector. Edward Sheldon, CFA | Tuesday, 9th February, 2021 Our 6 ‘Best Buys Now’ Shares Image source: The Motley Fool Edward Sheldon owns shares in Apple, Amazon, and Mastercard. John Mackey, CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. The Motley Fool UK owns shares of and has recommended Amazon, Apple, Berkshire Hathaway (B shares), Bristol Myers Squibb, Mastercard, Snowflake Inc., and Visa. The Motley Fool UK has recommended Johnson & Johnson and recommends the following options: short March 2021 $225 calls on Berkshire Hathaway (B shares), short January 2023 $200 puts on Berkshire Hathaway (B shares), long January 2022 $1920 calls on Amazon, short January 2022 $1940 calls on Amazon, and long January 2023 $200 calls on Berkshire Hathaway (B shares). Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors. Click here to claim your copy now — and we’ll tell you the name of this Top US Share… free of charge! Renowned stock-picker Mark Rogers and his analyst team at The Motley Fool UK have named 6 shares that they believe UK investors should consider buying NOW.So if you’re looking for more stock ideas to try and best position your portfolio today, then it might be a good day for you. Because we’re offering a full 33% off your first year of membership to our flagship share-tipping service, backed by our ‘no quibbles’ 30-day subscription fee refund guarantee. I’m sure you’ll agree that’s quite the statement from Motley Fool Co-Founder Tom Gardner.But since our US analyst team first recommended shares in this unique tech stock back in 2016, the value has soared.What’s more, we firmly believe there’s still plenty of upside in its future. 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