MOST EXPENSIVE STOCK IN THIS WORLD... 1. Berkshire Hathaway Inc. Berkshire Hathaway stock cost $65 when Warren Buffett took control of the company in May 1965. * * Berkshire Hathaway headquartered in Omaha , Nebraska , United St ates * * Warren buffett had 18% share capital ownership . * * Berkshire Hathaway is the world's largest financial service by revenue * *Buffett didnot allowed stocksplit in this stock * *Berkshire shareholders are Buffett's parteners * *Over the past 50 years ,the compound annual gain in Berkshire book value per share was 19% * *$10,000 investment in Berkshire Hathaway stock in 1965 would be worth 88$ MILLIONS today * *Berkshire is likewise fourth largest company on the Fortune 500 * *Since 1965 Berkshire Hathaway has gained about 10000%