Contributions should be relevant, sound, in good taste, objective, coherent, concise, nonrepetitious.
Diversity is welcome.
According to Mr. Tisch, aggressive programmed trading typically is an attempt to take advantage of a difference in prices between different offerings of the same stock. For example, analysts will compare the price of a group of stocks on the NY Stock Exchange with the price of an option on the same stocks on the Chicago exchange. If a sufficiently large disparity exists, the programmed sales will be activated, buying the lower priced package and simultaneously selling the higher priced package. During Monday's decline, trading on index futures was suspended, reducing the impact of this form of programmed trading on the market. In the case of Monday's fall, Mr. Tisch felt that a lot of the volatility the market showed was caused by another kind of programmed trading.