“Masters of the universe” are bested by a cat:
The [Observer portfolio] challenge raised the question of whether the professionals, with their decades of knowledge, could outperform novice students of finance—or whether a random selection of stocks chosen by Orlando could perform just as well as experienced investors. …
The result indicates that the “random walk hypothesis”, popularised in economist Burton Malkiel’s book A Random Walk Down Wall Street, is perhaps truer than we thought. Burkiel’s book explores the idea that share prices move completely at random, making stock markets entirely unpredictable.
Investments: Orlando is the cat’s whiskers of stock picking | The Observer