Volume fell to 143.3 million shares from Friday's 184.1 million.

Volume fell to 124.4 million shares, the fourth-lowest level of the year.

The short interest in the stock fell 29 percent, to 2.3 million shares.

Volume fell to 132.2 million shares, from 142.3 million the day before, with 584 stocks ahead and 861 down.

At the end of the period on Jan. 15, short interest fell sharply to 931.8 million shares.

Volume fell to 132.76 million shares, from 140.6 million on Friday.

Short sales fell 70 percent, to 10.2 million shares from 34.7 million.

Nasdaq short interest fell 12.4 percent, to 181.6 million shares, in the month ended Jan. 15.

Volume fell to 135.9 million shares, from 164.8 million on Friday.

Volume fell to 163.5 million shares, from 181.9 million the day before.