Who's Most Valuable? Apple Is Still the Champ Over Microsoft

(Bloomberg) -- For the first time in years, Apple Inc. gave up its crown as the world's most valuable publicly traded company on Monday, at least for part of the trading day.

Shares of the iPhone maker have dropped sharply over the past several weeks, and the decline has erased about $300 billion in market capitalization from the company, which crested at a record $1.1 trillion valuation in early October. The slump took the company's market cap briefly below that of Microsoft Corp.'s on Monday, the first time in more than eight years that Microsoft was worth more by this metric. It was also the first time since 2013 that any company topped it, ever since Apple eclipsed Exxon Mobil Corp. in size, according to an analysis of Bloomberg data.

Apple's market cap ultimately regained its No. 1 rank, closing at $828.64 billion as of 4:05 p.m. in New York, while Microsoft's stood at $822.90 billion after the two spent much of Monday afternoon jockeying for the top seat. Shares of Apple rose 1.4 percent, erasing an earlier decline, while Microsoft climbed 3.3 percent.

Read More: Apple Gets Skepticism at Top Court in Bid to Stop Antitrust Suit

Apple and Microsoft have one of the most storied rivalries in Silicon Valley, one that goes back to the mid-1970s, when both were founded within a year of each other and focused on making breakthroughs in developing personal computers. Microsoft dominated in the dot-com era but subsequently lost ground as the Cupertino, California-based Apple launched such iconic products as the iPod and especially the iPhone, which would grow to become its most important product line.

Yet now, that very product is among the the challenges facing Apple, with concerns over weak iPhone demand pressuring shares to fall 25 percent from record levels.

Microsoft isn't immune to weakness in the technology sector, although the Redmond, Washington-based company has held up much better, falling about 8 percent from its own all-time high in October as investors take to its enterprise-oriented business, as well as the success of its cloud-computing division.

As Internet Stocks Plunge, ‘Old Tech' Finds New Friends

While Apple analysts see it transitioning to a business model based more on services than unit sales, there could be more pain ahead for the stock, which could dethrone it from the number-one spot in a more decisive fashion.

According to Rich Ross, a technical analyst at Evercore ISI, Apple's stock “has another 18 percent downside,” which could take the stock to $140, its 200-week moving average. “It is not bullish when the biggest stock in the world is in ‘falling knife' mode,” he wrote to clients on Monday.

Based on Apple's Friday close, an 18 percent drop would give it a market cap of about $670 billion. That would put it below both Amazon.com Inc., currently valued about $773 billion, and Google-parent Alphabet Inc., which has a market cap of about $732 billion.

©2018 Bloomberg L.P.