1.   Analysts say that on expiration day, traders in Maof options try to push the index to a point where their securities become valuable.

2.   And though other major stock market indexes had more modest point gains, those moves were enough to push those indexes to new closing highs.

3.   Brewer Bavaria SA, Banco de Colombia and Banco Ganadero pushed the indexes higher.

4.   Brokers said futures-related trading pushed the index up, as the underlying stocks were bought to push spot prices up.

5.   But enough sellers emerged in those earlier sessions to push the index below that level by the close of trading.

6.   Even a summertime rally and stellar gains by some computer-related companies failed to push the index ahead.

7.   In other markets, higher prices for wheat and hogs pushed commodity indexes higher.

8.   Large state-controlled companies such as phone company Telecomunicacoes Brasileiras SA helped to push the index higher.

9.   Lower first-time claims for unemployment insurance and slower supplier deliveries, indicating trouble keeping up with demand, also pushed the index up.

10.   Rising prices for wheat, corn and heating oil pushed the index higher.