English abstract
The researchers in this study tries to investigate the efficiency of Amman
Financial Market using two hypotheses: the stock returns that follow the
normal distribution and the instability of stock prices during the period
from January 2000 until April 2007 based on daily closing price and
market index using the serial correlation and frequent testing . But the
statistical tests proved that the stock returns don't follow the normal
distribution therefore, the frequent testing was used, but it also proved
inefficiency of the market and this gives the investors an opportunity to
predict the future prices and obtain higher returns than normal.
