Microsoft becomes third listed US firm to be valued at $1tn

Company beat sales and profit expectations to join Apple and Amazon in prestigious clubMicrosoft has become the third publicly listed US company, after Apple and Amazon, to boast a market value of more than $1tn after bumper quarterly results boosted i…

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Even Amazon and the tech giants could fail to click in a changing market

If the online retail giant has felt some pressure on profits, what price other, less secure, Silicon Valley firms?The march of Amazon and other US tech giants to world domination can sometimes seem unstoppable. Investors who have bought into the Amazon…

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