Due to a bugged implementation of the new multiple-choice market on October 9, this market currently displays as my most profitable market, with a profit of M$55,694. However, the market was quickly unranked and N/Aed (decreasing my league rank from Rank 1 Masters, sadly), so the profits themselves were clawed back. But when I sort my portfolio by profit, and in the "Top traders" section on the market, it still shows M$55,694.
For this market to resolve YES, either the bug should be fully fixed...or I profit greater than that on a different market :)
General policy for my markets: In the rare event of a conflict between my resolution criteria and the agreed-upon common-sense spirit of the market, I may resolve it according to the market's spirit or N/A, probably after discussion.