The unstable state of the market has been the ground on which Soros has tested his theory of contrarianism, arguing that financial markets are volatile and disorderly.
There is a popular saying in the stock market: "It's not how much you make in the stock market, but how long you live", and it is this saying that makes me have palpitations about long term investment.
There are some companies that are inherently riskier than others. Just look at the unprofitable biotech companies whose stock prices fell from the sky to the ground after their miracle drugs failed to pass FDA approval.
