Tesla's market cap dropped to $520.7 billion at the end of April from $657.5 billion in March, a 20.8% decline, pushing it to 9th in the rankings from 7th in January.

Graphic: Change in market cap in April https://www.reuters.com/graphics/GLOBAL-MARKETS/zgvobykokpd/chart.png

It was followed by China's Tencent Holdings <0700.HK,>, whose market cap fell 10.7% to $419.9 billion last month, amid heavy selling by technology investment firm Prosus.

On the other hand, Apple Inc and Microsoft Corp saw their market values jump after robust first-quarter earnings.

Saudi Aramco, the world's third-most valuable company, saw its market capitalisation jump to $2.2 trillion in April, a 12.5% increase over March.

(Reporting by Patturaja Murugaboopathy and Gaurav Dogra in Bengaluru; Editing by Mark Potter)