The financial market is designed to fail.
Looked at as a network design our financial markets are optimised for efficiency. Optimising for efficiency in the financial markets is not optional, it is the inevitable result of competitive pressure. Markets that are fast to react capture the early opportunities and transmit their risks through the network, markets networks that are slow to respond lose out on the best trades and end up with all the risk.
Perversely, the efficiency of the financial market and its various sub-networks, which are designed to transmit risk efficiently across the network, are equally efficient at transmitting failure. We see this in operation on our news feeds as falling values roll across the world from exchange to exchange, New York to London to Tokyo responding as one.