FAANG stocks have topped far beyond a $3 trillion combined value (thanks to key players like Apple (AAPL) - Get Report and Amazon (AMZN) - Get Report ). And while the so-called Cloud Kings like Salesforce (CRM) - Get Report are gaining on FAANG's success, each individual stock doesn't come close to the most expensive stock on the market.

So, what is the most expensive stock you can own? 

What's the Most Expensive Stock? 

The most expensive stock in 2018 is Warren Buffett's Berkshire Hathaway Inc. (BRK.A) - Get Report , with Class-A shares trading at a whopping $315,000.00 a share as of December 2018. While Class-B (BRK.B) - Get Report shares are currently going for around $210 a share, Buffett's Berkshire Hathaway has long held its position at the top of the market. The company is multinational conglomerate, with subsidiaries like GEICO, Heinz (KHC) - Get Report , BNSF Railway and more. 

Berkshire Hathaway has a recent trading volume of 563, with a longer-term average volume of 328.

But how has the Buffett behemoth risen to its place at the top?

Berkshire Hathaway Market Cap, History and Stock

The company has long been the most expensive stock to own - and, surprisingly, Berkshire Hathaway has never done a stock split. While most companies will initiate several 2:1 splits over time, Buffett's conglomerate has never doubled its shares (and subsequently, never cut its price in half). 

As of December 2018, Berkshire Hathaway's market cap sits at around $518 billion. 

In 1955, Berkshire Fine Spinning Associates merged with Hathaway to form Berkshire Hathaway, Inc. - Buffett's investment vehicle based in Omaha, Neb. The investor began buying into undervalued companies to build up Berkshire Hathaway, and eventually acquired a number of large companies like Heinz and Benjamin Moore. As a holding company, Berkshire Hathaway also holds other big companies like Oriental Trading Company, Dairy Queen and RC Willey Home Furnishings. 

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The conglomerate's stock has seen steady growth over the past five years, increasing from around $175,000 in December 2013 to its massive $315,000 price tag in December 2018.

Watch:In Case You Missed it: Apple's Casualties Include Warren Buffett

12 Other Expensive Stocks in Descending Order

Here are the other stocks that come in close: 

1. Seaboard Corp

Coming in second to Berkshire Hathaway, Seaboard Corp (SEB) - Get Report has a price of around $3,769 per share. 

The Fortune 500 conglomerate focuses on the agribusiness sector and operates companies in the ocean transportation space. Additionally, Seaboard Corp. holds companies in the food space as well as commodity trading and milling. 

2. NVR Inc. 

Following close on Seaboard's heels, NVR Inc. (NVR) - Get Report is a construction and mortgage banking company based in Virginia, with a share price of around $2,437. 

Some of the company's subsidiaries include Ryan Homes, Fox Ridge Homes and NVR Mortgage. 

3. Booking Holdings Inc. 

Booking Holdings Inc. (BKNG) - Get Report (which owns multiple large travel companies including Priceline.com, Booking.com, Kayak.com and others) has a stock price of around $1,863 per share. 

4. Amazon 

Jeff Bezos' baby Amazon holds its own among the top stocks on the market, with a price of around $1,668 a share. 

As one of the biggest and most lucrative stocks on the market, Amazon is one of only two FAANG stocks in the top 15 most expensive. And a recent move to both Long Island City in New York and Crystal City in Virginia for their HQ2 (second headquarters) has many investors bullish on the stock. 

5. Markel Corporation

Markel Corporation (MKL) - Get Report , an investment, insurance and reinsurance holding company, boasts a price tag of about $1,136 per share.

6. Alphabet

Coming in a bit behind Amazon, Alphabet (GOOG) - Get Report still has a hefty stock price of around $1,062 per share.

The Google giant has recently had some luck in the market, with shares rising in light of trade war suspension discussions between China and the U.S. 

7. White Mountains Insurance Group

White Mountains Insurance Group's (WTM) - Get Report stock price sits at around $929 per share. The group is a financial services holding company based in Bermuda. 

8. AutoZone Inc.

AutoZone Inc.  (AZO) - Get Report holds its own with a share price sitting at around $880 each. The automotive parts manufacturer boasts more than 6,000 stores across the U.S., Mexico and Brazil. 

9. Cable One Inc.

As one of the nation's largest cable and internet providers, Cable One Inc. (CABO) - Get Report  is hot on the heels of AutoZone with a stock price of about $865. 

10. Atrion Corp.

Atrion Corp.  (ATRI) - Get Report is a corporation specializing in medical devices and surgical products. As of December 2018, Atrion has a share price of about $785 each. 

11. Biglari Holdings Inc. 

As a holding company, Biglari Holdings Inc. Class A shares trade at about $716. Its holdings are in food and insurance, among other areas. 

12. Graham Holdings Co. 

Most famous for its former holdings like Newsweek and The Washington Post, Graham Holdings Co. (GHC) - Get Report has a price of around $654 per share.

The holding company is a media and educational company with holdings in broadcasting and news among other spaces. 

Most Valuable Stock by Market Capitalization

Berkshire Hathaway isn't the most valuable company based on market cap; that honor goes Apple, with a market cap at $838 billion as of December 2018. Still, Microsoft (MSFT) - Get Report comes in close at $833 billion, Amazon at $815 billion, and Alphabet brings up the rear at $735 billion. 

Not for Long? 

While Berkshire Hathaway reigns supreme as the most expensive stock money can buy, its spot at the top may be jeopardized in the near future.

According to several reports over the past couple of years, Saudi Arabian oil company Saudi Aramco is set to debut the largest IPO in history, at a $2 trillion valuation, in the next couple years. However, according to Bloomberg back in October, this projection may be unrealistic. 

"Everyone heard about the rumors of Saudi Arabia canceling the IPO of Aramco, delaying that," Saudi Crown Prince Mohammed bin Salman Al Saud told Bloomberg earlier this year.  "This is not right." Now, the Crown Prince predicts an IPO around 2020 or 2021.