1.   Like last week, when stock trading was distorted by the quarterly expiration of options, one-time factors seemed to be at work.

2.   Staff also occasionally prayed with him at a Shinto shrine on the day before quarterly expiration of futures contracts, when there is traditionally a lot of trading.

3.   Stocks got a additional boost from the quarterly expiration of options and futures, which spurred demand for shares.

4.   Stocks got a additional spark from the quarterly expiration of options and futures, which spurred demand for shares.

5.   Stocks got a boost on Friday from the quarterly expiration of options and futures, which spurred demand for shares.

6.   The active bond futures contract rose to its highest level of the year as investors raised bids as its quarterly expiration day approaches.

7.   The active bond futures contract rose to its highest level of the year, with investors raising bids as its quarterly expiration day approaches.

8.   The drop initially was exacerbated by the quarterly expiration of stock index futures, options on those futures and common stock options.

9.   The drop was exacerbated by the quarterly expiration of stock index futures, options on those futures and common stock options.

10.   The initial drop was exacerbated by the quarterly expiration of stock index futures, options on those futures and common stock options.