1.  Bimonthly options give the holder the right, but not the obligation, to buy or sell a share at a given price.

2.  Brazilian stocks were little changed amid trading in bimonthly options for Telcomunicacoes Brasileiras SA.

3.  Brazilian stocks were mixed amid heavy trading in bimonthly options in Telecomunicacoes Brasileiras SA one session before expiration.

4.  Shares were pushed further down because of heavy trading in Telebras bimonthly options.

5.  The bimonthly options expire on Friday in the U.S. and on Monday in Brazil.

6.  The session was marked by volatile prices as the expiration date for bimonthly options and index futures contracts near.

7.  Trading in stock options dominates Brazilian stock markets a week before the bimonthly options expire.

8.  Trading always increases on the day when bimonthly options expire.

9.  Volume has only been higher when bimonthly options expire.