Welcome to the Minsky Moment

A Minsky moment is the point in a credit cycle or business cycle when investors have cash flow problems due to spiraling debt they have incurred in order to finance speculative investments. At this point, a major selloff begins due to the fact that no counterparty can be found to bid at the high asking prices previously quoted, leading to a sudden and precipitous collapse in market clearing asset prices and a sharp drop in market liquidity.[1]

The Minsky moment comes after a long period of prosperity and increasing values of investments, which has encouraged increasing amounts of speculation using borrowed money.

Source: http://en.wikipedia.org/wiki/Minsky_moment