According to Marx the root cause of crisis always lies in the inequality of wealth engendered by the commoditisation of labour power. If he was right it follows that the globalisation of commodity relations must lead to a crisis on a corresponding global scale unless the growth in inequality is held in check. The fact that it was not checked but allowed to reach epic proportions by the time the global financial crisis broke out is for many people confirmation that Marx was right. This chapter seeks to give weight to this view by explaining the new mechanism through which the effects of exploitation are transmitted into crisis: prevented from finding expression in an excess supply of products in GDP space, these effects have instead found expression in an excess demand for securities in capital market space. Most economists put the major blame for the financial crisis on the banks because it was they who created the toxic securities that caused the financial system to seize up. My interpretation is different. The banks certainly overreached themselves in creating these securities but the principal reason why they did so was to augment the wealth storage capacity of existing securities stocks in order to accommodate the build-up of private wealth.