Warren Buffett's Berkshire Hathaway is investing billions in airline stocks

Photo: Lacy O’Toole/CNBC/NBCU Photo Bank/Getty Images

Warren Buffett’s Berkshire Hathaway upped its shareholdings in various airlines during the fourth quarter, according to a regulatory filing published Tuesday February 14.

The 13-F filing showed that Berkshire took a new position in Southwest Air, buying 43.2 million shares valued at $US2.15 billion.

Meanwhile, the company increased its stake in Delta Air Lines by 848% to 60 million shares worth $US2.95 billion. Berkshire also raised its stake in American Airlines.

Berkshire hiked its ownership in Apple by 277%, buying 42.1 million shares valued at $US6.64 billion.

Buffett’s most valuable holding remained Kraft Heinz, and no change was made to the stake worth $US28.4 billion. Wells Fargo, Coca-Cola, IBM, and American Express also remained top holdings.

Berkshire’s combined portfolio gained 15% during the fourth quarter. The benchmark S&P 500 index of US stocks gained 3.3%.

Major investment firms including hedge funds are required to disclose their long positions in stocks every quarter. Because of a time lag, these positions may have changed or been closed by the time the filings are made.

NOW WATCH: There’s a secret room behind Mount Rushmore that is inaccessible to tourists

NOW WATCH: Money & Markets videos

Want to read a more in-depth view on the trends influencing Australian business and the global economy? BI / Research is designed to help executives and industry leaders understand the major challenges and opportunities for industry, technology, strategy and the economy in the future. Sign up for free at research.businessinsider.com.au.