The most overvalued stock of all time?

Palantir may be “the most overvalued firm of all time”, says The Economist. Shares in the US data mining-software specialist have increased more than fivefold over the past 12 months. Palantir uses AI to help companies and governments make better decisions and has long-standing contracts with US defence and intelligence agencies. The company recently topped $1bn in quarterly revenue for the first time, but on a stock price approaching 600 times earnings the market is getting carried away. To jus...