1.   Some strength may have come as traders continue to square their books for end-of-the-month and end-of-the-quarter business.

2.   Among the buyers were traders squaring their books ahead of the holiday weekend and others seeking to profit from the traditional pre-Thanksgiving gains.

3.   He also was in charge of squaring his books -- meaning he was policing himself.

4.   He was in charge of trading as well as of squaring the books -- a task critics say should have been done by someone else.

5.   He was in charge of trading as well as of squaring the books.

6.   January products futures contracts expired significantly lower as traders squared their books during the abbreviated trading session.