Over the next 24 months, the stock will move higher.

But the stocks did not move much in response then.

But by the time you get hard data points the stocks have already moved.

The stocks of other hospital management companies also moved up.

"We don't know why the stock was moving before that."

A company spokesman, said however, that she did not know why the stock was moving higher.

Stocks often move from one category to the other over time.

They could lose big if these stocks move too far in the wrong direction.

For investors, this turned out to be better news than expected, and the stock moved higher yesterday.

The result is that an individual stock can move up or down ten per cent on a day with no real news.